Ontario

Köppen climate types of Ontario

Ontario's climate varies by season and location.[20] Three air sources affect it: cold, dry, arctic air from the north (dominant factor during the winter months, and for a longer part of the year in far northern Ontario); Pacific polar air crossing in from the western Canadian Prairies/US Northern Plains; and warm, moist air from the Gulf of Mexico and the Atlantic Ocean.[21] The effects of these major air masses on temperature and precipitation depend mainly on latitude, proximity to major bodies of water and to a small extent, terrain relief.[21] In general, most of Ontario's climate is classified as humid continental.[21]

Ontario has four main climatic regions:

• The surrounding Great Lakes greatly influence the climatic region of southern Ontario.[20] During the fall and winter, the release of heat stored by the lakes moderates the climate near the shores.[22] This gives parts of southern Ontario milder winters than mid-continental areas at lower latitudes.[22] Parts of Southwestern Ontario (generally south of a line from Sarnia–Toronto) have a moderate humid continental climate (Köppen climate classification Dfa), similar to the inland Mid-Atlantic states and the Great Lakes portion of the Midwestern United States. The region has warm to hot, humid summers and cold winters. Annual precipitation ranges from 750–1,000 mm (30–39 in) and is well distributed throughout the year. Most of this region lies in the lee of the Great Lakes, making for abundant snow in some areas. In December 2010, the snowbelt set a new record when it was hit by more than a metre of snow within 48 hours.[23]
• The next climatic region is Central and Eastern Ontario, which has a moderate humid continental climate (Köppen Dfb). This region has warm and sometimes hot summers with colder, longer winters, ample snowfall (even in regions not directly in the snowbelts) and annual precipitation similar to the rest of Southern Ontario.[21]
• The smallest climatic region is located at the most northeastern part of the Niagara Peninsula, which has a temperate humid climate (Köppen Cfa), due to moderating effects by Lake Ontario, the Niagara River and battling air masses from the Gulf of Mexico during the winter months.[24] It is one of the most temperate regions in the entire province.

In the northeastern parts of Ontario, extending south as far as Kirkland Lake, the cold waters of Hudson Bay depress summer temperatures, making it cooler than other locations at similar latitudes. The same is true on the northern shore of Lake Superior, which cools hot, humid air from the south, leading to cooler summer temperatures.[21] Along the eastern shores of Lake Superior and Lake Huron winter temperatures are slightly moderated but come with frequent heavy lake-effect snow squalls that increase seasonal snowfall totals to upwards of 3 m (10 ft) in some places. These regions have higher annual precipitation, in some places over 100 cm (39 in).

Cold northwesterly wind over the Great Lakes creating lake-effect snow. Lake-effect snow most frequently occurs in the snowbelt regions of the province.

• The northernmost parts of Ontario – primarily north of 50°N – have a subarctic climate (Köppen Dfc) with long, severely cold winters and short, cool to warm summers with dramatic temperature changes possible in all seasons. With no major mountain ranges blocking sinking Arctic air masses, temperatures of −40 °C (−40 °F) are not uncommon; snow remains on the ground for sometimes over half the year. Snow accumulation can be high in some areas.[20] Precipitation is generally less than 70 cm (28 in) and peaks in the summer months in the form of rain or thunderstorms.[20]

Severe thunderstorms peak in summer. Windsor, in Southern (Southwestern) Ontario, has the most lightning strikes per year in Canada, averaging 33 days of thunderstorm activity per year.[25] In a typical year, Ontario averages 11 confirmed tornado touchdowns. However, over the last 4 years, it has had upwards of 20 tornado touchdowns per year, with the highest frequency in the Windsor-Essex – Chatham Kent area, though few are very destructive (the majority between F0 to F2 on the Fujita scale). Ontario had a record 29 tornadoes in both 2006 and 2009. Tropical depression remnants occasionally bring heavy rains and winds in the south, but are rarely deadly. A notable exception was Hurricane Hazel which struck Southern Ontario centred on Toronto, in October 1954.

Paleo-Indians were the first people to settle on the lands of Ontario, arriving there after the Laurentide Ice Sheet melted roughly 11,000 years ago.[36] From them, many ethnocultural groups emerged and came to exist on the lands of Ontario: the Algonquins, Mississaugas, Ojibway, Cree, Odawa, Pottowatomi, and Iroquois.[37]

In the 15th century, the Byzantine Empire fell, prompting Western Europeans to search for new sea routes to the Far East. Around 1522–1523, Giovanni da Verrazzano persuaded King Francis I of France to commission an expedition to find a western route to Cathay (China) via a Northwest Passage. Though this expedition was unsuccessful, it established the name "New France" for northeastern North America.[38] After a few expeditions, France mostly abandoned North America for 50 years because of its financial crisis; France was involved in the Italian Wars and there were religious wars between Protestants and Catholics.[39] Around 1580 however, the rise of the fur trade (particularly the demand for beaver pelts), reignited French interest.[40]

In 1608, Samuel de Champlain established France's first colonial settlement in New France, the Habitation de Québec (now Quebec City), in the colony of Canada (now southern Quebec). Afterwards, French explorers continued to travel west, establishing new villages along the coasts of the Saint Lawrence River. French explorers, the first of which was Étienne Brûlé who explored the Georgian Bay area in 1610–1612,[41] mapped Southern Ontario and called the region the Pays d'en Haut ("Upper Country"), in reference to the region being upstream of the Saint Lawrence River. The colony of the Pays d'en Haut was formally established in 1610 as an administrative dependency of Canada, and was for defence and business rather than a settlement colony. The territory of the Pays-d'en-Haut was quite large and would today include the province of Ontario, as well as, in whole or in part, the American states of Minnesota, Wisconsin, Illinois, Indiana, Michigan, Ohio, Pennsylvania and New York. Indigenous peoples were the vast majority of the Pays d'en Haut population.[42]

A 1755 map of the Pays d'en Haut region of New France, an area that included most of Ontario

As for Northern Ontario, the English explorer Henry Hudson sailed into Hudson Bay in 1611 and claimed its drainage basin for England. The area would become known as Rupert's Land.

Samuel de Champlain reached Lake Huron in 1615, and French missionaries, such as the Jésuites and Supliciens, began to establish posts along the Great Lakes. The French allied with most Indigenous groups of Ontario, all for the fur trade and for defence against Iroquois attacks (which would later be called the Iroquois Wars). The French would declare their Indigenous allies to be subjects of the King of France and would often act as mediators between different groups. The Iroquois later allied themselves with the British.[43]

From 1634 to 1640, the Huron were devastated by European infectious diseases, such as measles and smallpox, to which they had no immunity.[44] By 1700, the Iroquois had been driven out or left the area that would become Ontario and the Mississaugas of the Ojibwa had settled the north shore of Lake Ontario. The remaining Huron settled north of Quebec.

During the French and Indian War, the North American theater of the Seven Years' War of 1754 to 1763, the British defeated the armies of New France and its Indigenous allies. In the Treaty of Paris 1763 France ceded most of its possessions in North America to Britain. Using the Quebec Act, Britain re-organised the territory into the Province of Quebec.[45]

A monument in Hamilton commemorating the United Empire Loyalists, a group of settlers who fled the United States during or after the American Revolution

In 1782–1784, 5,000 United Empire Loyalists entered what is now Ontario following the American Revolution.[46] The Kingdom of Great Britain granted them 200 acres (81 ha) land and other items with which to rebuild their lives.[43] The British also set up reserves in Ontario for the Mohawks who had fought for the British and had lost their land in New York state. Other Iroquois, also displaced from New York were resettled in 1784 at the Six Nations reserve at the west end of Lake Ontario. The Mississaugas, displaced by European settlements, would later move to Six Nations also.

After the American War of Independence, the first reserves for First Nations were established. These are situated at Six Nations (1784), Tyendinaga (1793) and Akwesasne (1795). Six Nations and Tyendinaga were established by the British for those Indigenous groups who had fought on the side of the British, and were expelled from the new United States. Akwesasne was a pre-existing Mohawk community and its borders were formalized under the 1795 Jay Treaty.

In 1788, while part of the Province of Quebec, southern Ontario was divided into four districts: Hesse, Lunenburg, Mecklenburg, and Nassau. In 1792, the four districts were renamed: Hesse became the Western District, Lunenburg became the Eastern District, Mecklenburg became the Midland District, and Nassau became the Home District. Counties were created within the districts.

The population of Canada west of the St. Lawrence-Ottawa River confluence substantially increased during this period, a fact recognized by the Constitutional Act of 1791, which split Quebec into the Canadas: Upper Canada southwest of the St. Lawrence-Ottawa River confluence, and Lower Canada east of it.

Map of Upper Canada, 1811

John Graves Simcoe was appointed Upper Canada's first Lieutenant governor in 1793.[47] A second wave of Americans, not all of them necessarily loyalists moved to Upper Canada after 1790 until the pre-war of 1812, many seeking available cheap land, and at the time, lower taxation.

By 1798, there were eight districts: Eastern, Home, Johnstown, London, Midland, Newcastle, Niagara, and Western. By 1826, there were eleven districts: Bathurst, Eastern, Gore, Home, Johnstown, London, Midland, Newcastle, Niagara, Ottawa, and Western. By 1838, there were twenty districts: Bathurst, Brock, Colbourne, Dalhousie, Eastern, Gore, Home, Huron, Johnstown, London, Midland, Newcastle, Niagara, Ottawa, Prince Edward, Simcoe, Talbot, Victoria, Wellington, and Western.

American troops in the War of 1812 invaded Upper Canada across the Niagara River and the Detroit River, but were defeated and pushed back by the British, Canadian fencibles and militias, and First Nations warriors. However, the Americans eventually gained control of Lake Erie and Lake Ontario. The 1813 Battle of York saw American troops defeat the garrison at the Upper Canada capital of York. The Americans looted the town and burned the Upper Canada Parliament Buildings during their brief occupation. The British would burn the American capital of Washington, D.C. in 1814.

Depiction of the Battle of Queenston Heights, during the War of 1812. Upper Canada was an active theatre of operation during the conflict.

After the War of 1812, relative stability allowed for increasing numbers of immigrants to arrive from Europe rather than from the United States. As was the case in the previous decades, this immigration shift was encouraged by the colonial leaders. Despite affordable and often free land, many arriving newcomers, mostly from Britain and Ireland, found frontier life with the harsh climate difficult, and some of those with the means eventually returned home or went south. However, population growth far exceeded emigration in the following decades. It was a mostly agrarian-based society, but canal projects and a new network of plank roads spurred greater trade within the colony and with the United States, thereby improving previously damaged relations over time.

Meanwhile, Ontario's numerous waterways aided travel and transportation into the interior and supplied water power for development. As the population increased, so did the industries and transportation networks, which in turn led to further development. By the end of the century, Ontario vied with Quebec as the nation's leader in terms of growth in population, industry, arts and communications.[48]

Unrest in the colony began to chafe against the aristocratic Family Compact who governed while benefiting economically from the region's resources, and who did not allow elected bodies power. This resentment spurred republican ideals and sowed the seeds for early Canadian nationalism. Accordingly, rebellion in favour of responsible government rose in both regions; Louis-Joseph Papineau led the Lower Canada Rebellion and William Lyon Mackenzie, first Toronto mayor,[49] led the Upper Canada Rebellion. In Upper Canada, the rebellion was quickly a failure. William Lyon Mackenzie escaped to the United States, where he declared the Republic of Canada on Navy Island on the Niagara River.[50]

Although both rebellions were put down in short order, the British government sent Lord Durham to investigate the causes. He recommended self-government be granted and Lower and Upper Canada be re-joined in an attempt to assimilate the French Canadians. Accordingly, the two colonies were merged into the Province of Canada by the Act of Union 1840, with the capital at Kingston, and Upper Canada becoming known as Canada West.[51] Parliamentary self-government was granted in 1848. There were heavy waves of immigration in the 1840s, and the population of Canada West more than doubled by 1851 over the previous decade. As a result, for the first time, the English-speaking population of Canada West surpassed the French-speaking population of Canada East, tilting the representative balance of power.

Map of Canada West from 1855. Canada West formed the western portion of the Province of Canada.

In 1849, the districts of southern Ontario were abolished by the Province of Canada, and county governments took over certain municipal responsibilities. The Province of Canada also began creating districts in sparsely populated Northern Ontario with the establishment of Algoma District and Nipissing District in 1858.

An economic boom in the 1850s coincided with railway expansion across the province, further increasing the economic strength of Central Canada. With the repeal of the Corn Laws and a reciprocity agreement in place with the United States, various industries such as timber, mining, farming and alcohol distilling benefited tremendously.

A political stalemate between the French- and English-speaking legislators, as well as fear of aggression from the United States during and immediately after the American Civil War, led the political elite to hold a series of conferences in the 1860s to effect a broader federal union of all British North American colonies. The British North America Act took effect on July 1, 1867, establishing the Dominion of Canada, initially with four provinces: Nova Scotia, New Brunswick, Quebec and Ontario. The Province of Canada was divided into Ontario and Quebec so that each linguistic group would have its own province. Both Quebec and Ontario were required by section 93 of the British North America Act to safeguard existing educational rights and privileges of the Protestant and Catholic minorities. Thus, separate Catholic schools and school boards were permitted in Ontario. However, neither province had a constitutional requirement to protect its French- or English-speaking minority. Toronto was formally established as Ontario's provincial capital.

An animated map of the changes to the borders of Canada. The borders of Ontario were last changed in 1912.

The borders of Ontario, its new name in 1867, were provisionally expanded north and west. When the Province of Canada was formed, its borders were not entirely clear, and Ontario claimed eventually to reach all the way to the Rocky Mountains and Arctic Ocean. With Canada's acquisition of Rupert's Land, Ontario was interested in clearly defining its borders, especially since some of the new areas in which it was interested were rapidly growing. After the federal government asked Ontario to pay for construction in the new disputed area, the province asked for an elaboration on its limits, and its boundary was moved north to the 51st parallel north.[52]

Oliver Mowat, Premier of Ontario from 1872 to 1896

Once constituted as a province, Ontario proceeded to assert its economic and legislative power. In 1872, the lawyer Oliver Mowat became Premier of Ontario and remained as premier until 1896. He fought for provincial rights, weakening the power of the federal government in provincial matters, usually through well-argued appeals to the Judicial Committee of the Privy Council. His battles with the federal government greatly decentralized Canada, giving the provinces far more power than John A. Macdonald had intended. He consolidated and expanded Ontario's educational and provincial institutions, created districts in Northern Ontario, and fought to ensure that those parts of Northwestern Ontario not historically part of Upper Canada (the vast areas north and west of the Lake Superior-Hudson Bay watershed, known as the District of Keewatin) would become part of Ontario, a victory embodied in the Canada (Ontario Boundary) Act, 1889. He also presided over the emergence of the province into the economic powerhouse of Canada. Mowat was the creator of what is often called Empire Ontario.

Beginning with Macdonald's National Policy (1879) and the construction of the Canadian Pacific Railway (1875–1885) through Northern Ontario and the Canadian Prairies to British Columbia, Ontario manufacturing and industry flourished. However, population increases slowed after a large recession hit the province in 1893, thus slowing growth drastically but for only a few years. Many newly arrived immigrants and others moved west along the railway to the Prairie Provinces and British Columbia, sparsely settling Northern Ontario.

The northern and western boundaries of Ontario were in dispute after Canadian Confederation. Ontario's right to Northwestern Ontario was determined by the Judicial Committee of the Privy Council in 1884 and confirmed by the Canada (Ontario Boundary) Act, 1889 of the Parliament of the United Kingdom. By 1899, there were seven northern districts: Algoma, Manitoulin, Muskoka, Nipissing, Parry Sound, Rainy River, and Thunder Bay. Four more northern districts were created between 1907 and 1912: Cochrane, Kenora, Sudbury and Timiskaming.[53]

Mineral exploitation accelerated in the late 19th century, leading to the rise of important mining centres in the northeast, such as Sudbury, Cobalt and Timmins. The province harnessed its water power to generate hydro-electric power and created the state-controlled Hydro-Electric Power Commission of Ontario, later Ontario Hydro. The availability of cheap electric power further facilitated the development of industry. The Ford Motor Company of Canada was established in 1904 and the McLaughlin Motor Car Company (later General Motors Canada) was founded in 1907. The motor vehicle industry became the most lucrative industry for the Ontario economy during the 20th century.

In July 1912, the Conservative government of James Whitney issued Regulation 17 which severely limited the availability of French-language schooling to the province's French-speaking minority. French Canadians reacted with outrage, journalist Henri Bourassa denouncing the "Prussians of Ontario". The regulation was eventually repealed in 1927.

Law enforcement confiscate stores of alcohol in Elk Lake in an effort to enforce prohibition. The prohibition measures were introduced in 1916 and were not repealed until 1927.

Influenced by events in the United States, the government of William Hearst introduced prohibition of alcoholic drinks in 1916 with the passing of the Ontario Temperance Act. However, residents could distil and retain their own personal supply, and liquor producers could continue distillation and export for sale, allowing this already sizeable industry to strengthen further. Ontario became a hotbed for the illegal smuggling of liquor and the biggest supplier into the United States, which was under complete prohibition. Prohibition in Ontario came to an end in 1927 with the establishment of the Liquor Control Board of Ontario under the government of Howard Ferguson. The sale and consumption of liquor, wine, and beer are still controlled by some of the most extreme laws in North America to ensure strict community standards and revenue generation from the alcohol retail monopoly are upheld.

The post-World War II period was one of exceptional prosperity and growth. Ontario has been the recipients of most immigration to Canada, largely immigrants from war-torn Europe in the 1950s and 1960s and following changes in federal immigration law, a massive influx of non-Europeans since the 1970s. From a largely ethnically British province, Ontario has rapidly become culturally very diverse.

The nationalist movement in Quebec, particularly after the election of the Parti Québécois in 1976, contributed to driving many businesses and English-speaking people out of Quebec to Ontario, and as a result, Toronto surpassed Montreal as the largest city and economic centre of Canada.[54] Depressed economic conditions in the Maritime Provinces have also resulted in de-population of those provinces in the 20th century, with heavy migration into Ontario.[55][56]

Ontario's official language is English, although there exists a number of French-speaking communities across Ontario.[57] French-language services are made available for communities with a sizeable French-speaking population; a service that is ensured under the French Language Services Act of 1989.

In the 2021 census, Ontario had a population of 14,223,942 living in 5,491,201 of its 5,929,250 total dwellings, a 5.8 percent change from its 2016 population of 13,448,494. With a land area of 892,411.76 km² (344,562.11 sq mi), it had a population density of 15.9/km² (41.3/sq mi) in 2021.[3] The largest population centres in Ontario are Toronto, Ottawa, Hamilton, Kitchener, London and Oshawa which all have more than 300,000 inhabitants.

The percentages given below add to more than 100 per cent because of dual responses (e.g., "French and Canadian" response generates an entry both in the category "French Canadian" and in the category "Canadian").

The majority of Ontarians are of English or other European descent including large Scottish, Irish and Italian communities. Slightly less than 5 per cent of the population of Ontario is Franco-Ontarian, that is those whose native tongue is French, although those with French ancestry account for 11 per cent of the population. In relation to natural increase or inter-provincial migration, immigration is a huge population growth force in Ontario, as it has been over the last two centuries. More recent sources of immigrants with large or growing communities in Ontario include East Asians, South Asians, Caribbeans, Latin Americans, Europeans, and Africans. Most populations have settled in the larger urban centres.

In 2011, 25.9 per cent of the population consisted of visible minorities and 2.4 per cent of the population was Indigenous, mostly of First Nations and Métis descent. There was also a small number of Inuit in the province. The number of Indigenous people and visible minorities has been increasing at a faster rate than the general population of Ontario.[58]

In 2011, the largest religious denominations in Ontario were the Roman Catholic Church (with 31.4% of the population), the United Church of Canada (7.5%), and the Anglican Church (6.1%). 23.1% of Ontarians had no religious affiliation, making it the second-largest religious grouping in the province after Roman Catholics.[59]

The major religious groups in Ontario in 2011 were:

In Ontario, Catholics are represented by the Assembly of Catholic Bishops of Ontario[60] and the Anglican Protestants by the Ecclesiastical Province of Ontario.[61] The Ecclesiastical Province covers most of the geographical province of Ontario[61]

English and French displayed on a gantry sign. Communities with sizeable francophone populations are able to receive provincial services in French.

As of the 2021 Canadian Census, the ten most spoken languages in the province included English (13,650,230 or 97.28%), French (1,550,545 or 11.05%), Mandarin (467,420 or 3.33%), Hindi (436,125 or 3.11%), Spanish (401,205 or 2.86%), Punjabi (397,865 or 2.84%), Cantonese (352,135 or 2.51%), Arabic (342,860 or 2.44%), Italian (312,800 or 2.23%), and Urdu (295,175 or 2.1%).[62] The question on knowledge of languages allows for multiple responses.

The principal language of Ontario is English, the province's de facto official language,[63] with approximately 97.2 per cent of Ontarians having proficiency in the language, although only 69.5 per cent of Ontarians reported English as their mother tongue in the 2016 Census.[64] English is one of two official languages of Canada, with the other being French. English and French are the official languages of the courts in Ontario. Approximately 4.6 per cent of the population identified as francophone,[65][note 1] and a total of 11.5 per cent of Ontarians reported having proficiency in French.[64] Approximately 11.2 per cent of Ontarians reported being bilingual in both English and French.[64] Approximately 2.5 per cent of Ontarians have no proficiency in either English or French.[64]

Franco-Ontarians are concentrated in the northeastern, eastern, and extreme southern parts of the province, where under the French Language Services Act,[66] provincial government services are required to be available in French if at least 10 per cent of a designated area's population report French as their native language or if an urban centre has at least 5,000 francophones.

Other languages spoken by residents include Arabic, Bengali, Cantonese, Dutch, German, Greek, Gujarati, Hindi, Hebrew, Italian, Korean, Malayalam, Mandarin, Marathi, Persian, Polish, Portuguese, Punjabi, Russian, Sinhalese, Somali, Spanish, Tagalog, Telugu, Tamil, Tibetan, Ukrainian, Urdu, and Vietnamese.[67]

Aerial view of farms in Waterloo. A significant portion of the land in Southern Ontario is used as farmland.

Once the dominant industry, agriculture now uses a small percentage of the workforce. However, much of the land in southern Ontario is given over to agriculture. As the following table shows, while the number of individual farms has steadily decreased and their overall size has shrunk at a lower rate, greater mechanization has supported increased supply to satisfy the ever-increasing demands of a growing population base; this has also meant a gradual increase in the total amount of land used for growing crops.

Grapevines growing in Prince Edward County, a wine-growing region

Common types of farms reported in the 2001 census include those for cattle, small grains and dairy. The fruit- and wine industry is primarily on the Niagara Peninsula, Prince Edward County, and along the northern shore of Lake Erie, where tobacco farms are also situated. Market vegetables grow in the rich soils of the Holland Marsh near Newmarket. The area near Windsor is also very fertile. The Heinz plant in Leamington was taken over in these autumn of 2013 by Warren Buffett and a Brazilian partner, following which it put 740 people out of work.[89] Government subsidies followed shortly; Premier Kathleen Wynne offered CAD$200,000 to cushion the blow, and promised that another processed-food operator would soon be found.[90] On December 10, 2013, Kellogg's announced layoffs for more than 509 workers at a cereal manufacture plant in London.[91]

The area defined as the Corn Belt covers much of the southwestern area of the province, extending as far north as close to Goderich, but corn and soy are grown throughout the southern portion of the province. Apple orchards are a common sight along the southern shore of Nottawasaga Bay (part of Georgian Bay) near Collingwood and along the northern shore of Lake Ontario near Cobourg. Tobacco production, centred in Norfolk County, has decreased, allowing an increase in alternative crops such as hazelnuts and ginseng. The Ontario origins of Massey Ferguson, once one of the largest farm-implement manufacturers in the world, indicate the importance agriculture once had to the Canadian economy.

A sign marking the Ottawa Greenbelt, an initiative to protect farmland and limit urban sprawl

Southern Ontario's limited supply of agricultural land is going out of production at an increasing rate. Urban sprawl and farmland severances contribute to the loss of thousands of acres of productive agricultural land in Ontario each year. Over 2,000 farms and 150,000 acres (61,000 ha) of farmland in the GTA alone were lost to production in the two decades between 1976 and 1996. This loss represented approximately 18%". of Ontario's Class 1 farmland being converted to urban purposes. In addition, increasing rural severances provide ever-greater interference with agricultural production.[92] In an effort to protect the farmland and green spaces of the National Capital Region, and Greater Toronto Area, the Federal[93] and Provincial Governments introduced greenbelts around Ottawa[94] and the Golden Horseshoe, limiting urban development in these areas.[95]

Ontario's rivers make it rich in hydroelectric energy.[96] In 2009, Ontario Power Generation generated 70 percent of the province's electricity, of which 51 percent is nuclear, 39% is hydroelectric and 10% is fossil-fuel derived.[97] By 2025, nuclear power is projected to supply 42%, while fossil-fuel-derived generation is projected to decrease slightly over the next 20 years.[98] Much of the newer power generation coming online in the last few years is natural gas or combined-cycle natural gas plants. OPG is not, however, responsible for the transmission of power, which is under the control of Hydro One.

The Pickering Nuclear Generating Station is one of three nuclear power stations in Ontario.

Despite its diverse range of power options, problems related to increasing consumption, lack of energy efficiency and aging nuclear reactors, Ontario has been forced in recent years to purchase power from its neighbours Quebec and Michigan to supplement its power needs during peak consumption periods. Ontario's basic domestic rate in 2010 was 11.17 cents per kWh; by contrast. Quebec's was 6.81.[99] In December 2013, the government projected a 42 percent hike by 2018, and 68 percent by 2033.[98] Industrial rates are projected to rise by 33% by 2018, and 55% in 2033.[98]

The Green Energy and Green Economy Act, 2009 (GEA), takes a two-pronged approach to commercializing renewable energy; first, it aims to bring more renewable energy sources to the province; and secondly, it aims to adopt more energy-efficiency measures to help conserve energy. The bill envisaged appointing a Renewable Energy Facilitator to provide "one-window" assistance and support to project developers to facilitate project approvals.[100]

The approvals process for transmission projects would also be streamlined and (for the first time in Ontario) the bill would enact standards for renewable energy projects. Homeowners would have access to incentives to develop small-scale renewables such as low- or no-interest loans to finance the capital cost of renewable energy generating facilities like solar panels.[100]

The Sir Adam Beck Hydroelectric Generating Stations are hydroelectric plants located in Niagara Falls.

Ontario is home to Niagara Falls, which supplies a large amount of electricity to the province. The Bruce Nuclear Generating Station, the largest operational nuclear power plant in the world, is also in Ontario and uses 8 CANDU reactors to generate electricity for the province.

Ontario had the most wind energy capacity of the country with 4,900 MW of power (41% of Canada's capacity).[101]

Osgoode Hall houses the Court of Appeal for Ontario, the appellate court for the province.

Ontario has grown, from its roots in Upper Canada, into a modern jurisdiction. The old titles of the chief law officers, the Attorney-General and the Solicitor-General, remain in use. They both are responsible to the Legislature. The Attorney-General drafts the laws and is responsible for criminal prosecutions and the administration of justice, while the Solicitor-General is responsible for law enforcement and the police services of the province. The Municipal Act, 2001 (Ontario)[102] is the main statute governing the creation, administration and government of municipalities in the Canadian province of Ontario, other than the City of Toronto. After being passed in 2001, it came into force on January 1, 2003, replacing the previous Municipal Act.[103] Effective January 1, 2007, the Municipal Act, 2001 (the Act) was significantly amended by the Municipal Statute Law Amendment Act, 2006 (Bill 130).[104][105]

The Ontario Legislative Building at Queen's Park. The building serves as the meeting place for the Legislative Assembly of Ontario.

Ontario has numerous political parties which run for election. The four main parties are the centre-right Progressive Conservative Party of Ontario, the social democratic Ontario New Democratic Party (NDP), the centre to centre-left Ontario Liberal Party, and Green Party of Ontario. The Progressive Conservatives, Liberals and New Democrats have each governed the province, while the Greens elected their first member to the Legislative Assembly in 2018.

The 2018 provincial election resulted in a Progressive Conservative majority government under party leader Doug Ford, who was sworn in as Premier on June 29. Ontario NDP leader Andrea Horwath was sworn in as the leader of her Majesty's Loyal Opposition.

Map of the counties, regional municipalities, districts, and municipalities of Ontario.

Ontario has three types of first-level administrative divisions. They include single-tier municipalities, upper-tier municipalities (which may be in the form of either regional municipalities or counties), and districts. Upper-tier municipalities and districts are made up of smaller municipalities and other types of administrative divisions.

Administrative divisions differ primarily in the services that they provide to their residents, with the differing structures of these administrative regions resulting in disparities among Ontario's different regions. The administrative regions of Ontario are roughly coterminous with the census divisions used by Statistics Canada, although some exceptions do exist.[note 2]

Statistics Canada's measure of a "metro area", the Census Metropolitan Area (CMA), roughly bundles together population figures from the core municipality with those from "commuter" municipalities.[106]

*Parts of Quebec (including Gatineau) are included in the Ottawa CMA. The population of the Ottawa CMA, in both provinces, is shown.

Ten largest municipalities by population[107]

Higher education in Ontario includes post-secondary education and skills training regulated by the Ministry of Training, Colleges, and Universities and provided by universities, colleges of applied arts and technology, and private career colleges.[108] The minister is Merrilee Fullerton. The ministry administers laws covering 22 public universities,[109] 24 public colleges (21 Colleges of Applied Arts and Technology (CAATs) and three Institutes of Technology and Advanced Learning (ITALs)),[110] 17 privately funded religious universities,[111] and over 500 private career colleges.[112] The Canadian constitution provides each province with the responsibility for higher education and there is no corresponding national federal ministry of higher education.[113] Within Canadian federalism the division of responsibilities and taxing powers between the Ontario and Canadian governments creates the need for co-operation to fund and deliver higher education to students. Each higher education system aims to improve participation, access, and mobility for students. There are two central organizations that assist with the process of applying to Ontario universities and colleges: the Ontario Universities' Application Centre and Ontario College Application Service. While application services are centralized, admission and selection processes vary and are the purview of each institution. Admission to many Ontario postsecondary institutions can be highly competitive. Upon admission, students may get involved with regional student representation with the Canadian Federation of Students, the Canadian Alliance of Student Associations, the Ontario Undergraduate Student Alliance, or through the College Student Alliance in Ontario.

An Ontario licence plate with the slogan Yours to Discover at the bottom of the plate

In 1973, the first slogan to appear on licence plates in Ontario was "Keep It Beautiful". This was replaced by "Yours to Discover" in 1982,[115] apparently inspired by a tourism slogan, "Discover Ontario", dating back to 1927.[116] Plates with the French equivalent, Tant à découvrir, were made available to the public beginning in May 2008.[117] (From 1988 to 1990,[118] "Ontario Incredible"[119] gave "Yours to Discover" a brief respite.)

A Place to Stand, a Place to Grow is a song commissioned by the government of Ontario for its pavilion in Expo 67, and an unofficial anthem of the province.[120] As a part of the Canada 150 celebrations in 2017, the provincial government released an updated rendition.[120] In 2007, the provincial tourism agency commissioned a new song, "There's No Place Like This" is featured in television advertising, performed by Ontario artists including Molly Johnson, Brian Byrne, Keshia Chanté,[121] as well as Tomi Swick and Arkells.

The province has professional sports teams in baseball, basketball, Canadian football, ice hockey, lacrosse, rugby league, rugby union and soccer.

Thunder Bay International Airport is one of five international airports operating in Ontario.

Important airports in the province include Toronto Pearson International Airport, which is the busiest airport in Canada,[122] handling nearly 50 million passengers in 2018.[123] Ottawa Macdonald–Cartier International Airport is Ontario's second largest airport. Toronto/Pearson and Ottawa/Macdonald-Cartier form two of the three points in Canada's busiest set of air routes (the third point being Montréal–Pierre Elliott Trudeau International Airport). In addition to airports in Ottawa, and Toronto, the province also operates three other international airports, the John C. Munro Hamilton International Airport in Hamilton, the Thunder Bay International Airport in Thunder Bay and the London International Airport in London. John C. Munro Hamilton International Airport serves as cargo hub, reliever for Pearson, and a hub for ULCC Swoop.

Most Ontario cities have regional airports, many of which have scheduled commuter flights from Air Canada Jazz or smaller airlines and charter companies – flights from the mid-size cities such as Thunder Bay, Sault Ste. Marie, Sudbury, North Bay, Timmins, Windsor, London, and Kingston feed directly into larger airports in Toronto and Ottawa. Bearskin Airlines also runs flights along the northerly east–west route, connecting Ottawa, North Bay, Sudbury, Sault Ste. Marie, Kitchener and Thunder Bay directly.

Isolated towns and settlements in the northern areas of the province rely partly or entirely on air service for travel, goods, and even ambulance services (MEDIVAC), since much of the far northern area of the province cannot be reached by road or rail.

Ontario passenger rail
White River Canadian to Vancouver O'Brien Girdwood Moosonee Franz Moose River Lochalsh Coral Rapids Missanabie Fraserdale Dalton Clute Bolkow Cochrane Nicholson Musk Esher Rice Lake Chapleau Copelands Landing Devon Malachi Nemegos Ottermere Kinogama Minaki Kormak Redditt Sultan Farlane Woman River Canyon Ramsey Red Lake Road Roberts Richan Biscotasing Sioux Lookout Metagama Savant Lake Sheahan Flindt Landing Pogamasing Allanwater Bridge Stralak Collins Benny Armstrong Cartier Mud River Levack Ferland Larchwood Auden Chelmsford Nakina Azilda Longlac Sudbury Caramat Hillsport Hornepayne Corridor to Quebec City Oba Cornwall Elsas Alexandria Foleyet Casselman Gogama Ottawa Westree Fallowfield Ruel Smiths Falls Felix Brockville McKee's Camp Gananoque Laforest Kingston Capreol Napanee Sudbury Junction Belleville Parry Sound Trenton Junction Washago Cobourg Old Elm Port Hope Stouffville Oshawa Mount Joy Whitby Markham Ajax Centennial Pickering Unionville Rouge Hill Milliken Guildwood Agincourt Eglinton Kennedy Allandale Waterfront Scarborough Barrie South Danforth Bradford East Gwillimbury Bloomington Newmarket Gormley Aurora Richmond Hill King City Langstaff Maple Old Cummer Rutherford Oriole Downsview Park Union Station Kipling Bloor Dixie Weston Cooksville Etobicoke North Erindale Streetsville Meadowvale Lisgar Milton Pearson Malton Exhibition Bramalea Mimico Brampton Long Branch Mount Pleasant Port Credit Georgetown Clarkson Acton Oakville Guelph Bronte Kitchener Appleby Burlington Stratford Aldershot Brantford St. Marys Woodstock Ingersoll London Hamilton Glencoe West Harbour Chatham Grimsby Windsor St. Catharines Strathroy Niagara Falls Wyoming Sarnia Amtrak Maple Leaf to New York
Operator
Via Rail GO Transit Union Pearson Express Ontario Northland Railway Amtrak

Via Rail operates the inter-regional passenger train service on the Quebec City–Windsor Corridor, along with The Canadian, a transcontinental rail service from Southern Ontario to Vancouver, and the Sudbury–White River train. Additionally, Amtrak rail connects Ontario with key New York cities including Buffalo, Albany, and New York City. Ontario Northland provides rail service to destinations as far north as Moosonee near James Bay, connecting them with the south.

Freight rail is dominated by the founding cross-country Canadian National Railway and CP Rail companies, which during the 1990s sold many short rail lines from their vast network to private companies operating mostly in the south.

Regional commuter rail is limited to the provincially owned GO Transit, and serves a train-bus network spanning the Golden Horseshoe region, with Union Station in Toronto serving as the transport hub.[124][125]

There are several city rail-transit systems in the Province. The Toronto Transit Commission operates subways, as well as streetcars (being one of the busiest streetcar systems in North America). OC Transpo operates a light rail metro system in Ottawa.[126] In addition, Waterloo region operates a surface light rail system.[127] Plans to build a light rail line is also underway in the Regional Municipality of Peel.[128][129]

Ontario Northland freight train crossing the Missinaibi River at Mattice-Val Côté in Northern Ontario

Highway 400 in Seguin. The roadway forms a part of the province's 400-series highways.

400-series highways make up the primary vehicular network in the south of province, and they connect at a number of points to border crossings to the United States, and Quebec, the busiest being the Detroit–Windsor Tunnel and Ambassador Bridge and the Blue Water Bridge (via Highway 402). Some of the primary highways along the southern route are Highway 401, Highway 417, and Highway 400,[130][131] Highway 401 being the busiest highway in North America. Other provincial highways and regional roads inter-connect the remainder of the province.

The Saint Lawrence Seaway, which extends across most of the southern portion of the province and connects to the Atlantic Ocean, is the primary water transportation route for cargo, particularly iron ore and grain. In the past, the Great Lakes and St. Lawrence River were also a major passenger transportation route, but over the past half century passenger travel has been reduced to ferry services and sightseeing cruises. Ontario's three largest ports are the Port of Hamilton, Port of Thunder Bay and the Port of Windsor. Ontario's only saltwater port is located in the town of Moosonee on James Bay.