2011 New South Wales state election

• Expiry of 54th Parliament: 12am on Friday, 4 March 2011
• Issue of Writs: 5 March 2011
• Close of Nominations: 10 March 2011
• Polling Day: Saturday 26 March 2011
• Return of the Writs: 30 April 2011[4]
• Meeting of 55th Parliament: By Monday, 16 May 2011

The Labor Party launched their campaign on 5 February 2011[5] in Liverpool within the electoral district of Macquarie Fields.[6] Premier Keneally launched the Labor Party's campaign slogan "Protecting jobs – Supporting families". In attendance for the launch were former Prime Minister Bob Hawke and former Premiers Wran and Carr.

The Liberal and Nationals Coalition launched their campaign on 20 February 2011 at the Joan Sutherland Performing Arts Centre in Penrith within the electoral district of Penrith with the slogan: "Real Change for NSW". In attendance for the launch were both Liberal and Nationals Leaders O'Farrell and Stoner as well as federal Liberal Party leader Tony Abbott, former Liberal Premiers and Leaders Greiner, Fahey, and Chikarovski.[7]

The Coalition had been leading in opinion polling for almost three years, and were unbackable favourites throughout the campaign to win the election. The final Newspoll had support for Labor at an all-time low with 23 percent of the primary vote and 35.9 percent of the two-party vote. Bookmakers were paying $1.01 for a Coalition win with Labor getting as much as $36 and one agency even paid out the winnings and declared the winner a week earlier.[8] At one point, Labor was widely predicted to win as few as 13 seats, seven less than the actual result.[9] According to several pollsters, Labor was in danger of losing several seats where it had not been seriously threatened in decades, as well as several that it had held for a century or more. Indeed, there were concerns that Labor would not win enough seats to form a credible shadow cabinet.

The Liberal/National Coalition won the largest proportional number of seats in NSW state history with 69 of 93 seats in the lower house (74.2 percent of the chamber)—in contrast, Labor won 69 of 99 seats (69.7 percent of the chamber) at Neville Wran's second "Wranslide" in 1981 election. Labor won 20 seats, the lowest for Labor in NSW Parliament in over a century, and the worst defeat that a sitting government in NSW has ever suffered. Many prominent Labor MPs and ministers lost their seats including Verity Firth, David Borger, Matt Brown, Jodi McKay, Virginia Judge, Phil Costa and Kevin Greene.[10] In the process, the Coalition took dozens of seats in areas considered Labor heartland, such as western Sydney and the Upper Hunter—some on swings of well over 10 per cent. The Liberals actually won 51 seats, enough for a majority in their own right—the first time the main non-Labor party in the state had achieved this since adopting the Liberal banner in 1945. Although O'Farrell thus had no need for the support of the Nationals, he opted to retain the Coalition.

In the upper house however, where half of the chamber was up for election, the landslide was not enough to deliver a Coalition majority. Three additional votes outside of the Liberal/National Coalition were required to pass legislation. The balance of power shifted from the Greens to the Shooters and Fishers Party and Christian Democratic Party. With two seats each held by the latter two parties, both needed to give legislative support if Labor and the Greens opposed legislation.[11][12]

• Tony Catanzariti
• Kayee Griffin
• Christine Robertson
• Ian West

• Ian Cohen

• *Figure is Greens vs Liberal
• **Figure is from the 2007 state election, where Rob Oakeshott was the independent candidate.
• In addition, the Liberals retained Ryde and Penrith, which were gained from Labor at by-elections.
• Members listed in italics did not contest their seat at this election.

Every seat in New South Wales swung to the Coalition on a two-party-preferred basis. The Coalition won the largest government in New South Wales history in a huge landslide, while Labor suffered the largest swing against a sitting government anywhere in Australia (and on any level) since World War II, as well as one of the worst defeats of a state government since Federation. This led to 12 consecutive years of Coalition government in New South Wales (the longest Coalition government and the third-longest state government overall in New South Wales history), until the Coalition was narrowly defeated in 2023.

The Liberals alone won more first preference votes than Labor (usually it takes both Coalition parties, the Liberals and the Nationals, to have a higher first preference vote than Labor).

Labor only had two safe seats after the defeat, both of which were in Western Sydney. The seats were Bankstown (on a 10.3% margin) and Liverpool (on a 14.7% margin). Labor only held five seats outside of Sydney (Cessnock, Keira, Shellharbour, Wallsend and Wollongong).

Ultimately, the Liberals won 29 seats from Labor (Blue Mountains, Camden, Campbelltown, Charlestown, Coogee, Drummoyne, East Hills, Gosford, Granville, Heathcote, Kiama, Londonderry, Maitland, Menai, Miranda, Mulgoa, Newcastle, Oatley, Parramatta, Riverstone, Rockdale, Smithdale, Strathfield, Swansea, The Entrance, Wollondilly and Wyong) while the Nationals won two seats from Labor (Bathurst and Monaro). The Nationals gained three seats from independents (Dubbo, Port Macquarie and Tamworth), which were Nationals seats held by personally popular independents. It is likely that Port Macquarie and Tamworth were regained by the Nationals easily due to a move by two independents in the federal seats of Lyne (Rob Oakeshott) and New England (Tony Windsor), which partially overlap with the respective state seats, which angered the locals, who are mostly liberal conservatives in some of the most safely-held Coalition seats in the country. The move that supposedly caused this was the decision of these two independents to support Julia Gillard, who formed a Labor minority government, over the Coalition under Tony Abbott (although Oakeshott stated that he would have supported the Coalition if Malcolm Turnbull was their leader instead of Abbott). Oakeshott and Windsor were personally popular in these seats (with Oakeshott even being an ex-National), but on traditional two-party-preferred contests, the Nationals were well ahead of Labor. The member for Port Macquarie, Peter Besseling, was friends with Oakeshott and previously worked as his advisor, thus angering Port Macquarie locals. Independents held just three seats after the election: Lake Macquarie, Northern Tablelands and Sydney.

The Greens won their first ever seat in New South Wales, the formerly-safe Labor seat of Balmain in inner-city Sydney, despite the Liberals winning the first preference vote.