Tri-Cities

• Tri-Cities (British Columbia), consisting of Coquitlam, Port Coquitlam, and Port Moody, located in the north-eastern section of Metro Vancouver
• Tri-Cities (Ontario), consisting of Kitchener, Cambridge, and Waterloo

• In California:
  • Tri-Cities in Los Angeles County, California, refers to the Burbank, Glendale, and Pasadena area, particularly in the local real estate industry.
  • Tri-City, San Diego County, California, Oceanside, Vista, and Carlsbad
  • Tri-City area in the San Francisco Bay Area refers to the three neighboring cities Fremont, Newark, and Union City.
• Tri-Cities, Georgia, consisting of College Park, East Point, and Hapeville, all of which are near Hartsfield–Jackson Atlanta International Airport
• Tri-Cities, Illinois, in Kane County, Illinois, the county seat of Geneva and the nearby cities of Batavia, and St. Charles,
• In Michigan:
  • Tri-Cities, Michigan, consisting of Bay City, Saginaw, and Midland in the Saginaw Valley
  • Tri-Cities, used locally to refer to Grand Haven, Spring Lake, and Ferrysburg in West Michigan
• Tri-Cities, Nebraska in the south-central part of the state, Grand Island, Kearney, and Hastings

Tri-Cities, New Hampshire Rochester, Dover and Somersworth

• Tri-Cities, New Mexico, Farmington, Bloomfield, and Aztec
• In New York:
  • Capital District, New York, consisting of Albany, Schenectady, and Troy
  • Triple Cities, Binghamton, Endicott and Johnson City
• In North Carolina:
  • Piedmont Triad in North Carolina, consisting of Greensboro, Winston-Salem, and High Point.
  • Research Triangle in North Carolina, consisting of Raleigh, Durham, and Chapel Hill.
• Tri-Cities, Oklahoma, Tuttle, Newcastle, and Blanchard
• Tri-City, Oregon, a census-designated place (CDP) and unincorporated community in Douglas County, Oregon, United States, named for 3 cities: Myrtle Creek, Canyonville and Riddle.
• Lehigh Valley in Pennsylvania: Allentown, Bethlehem, and Easton
• Tri-Cities, Tennessee, Tennessee and Virginia, consisting of the three cities of Bristol, Kingsport, and Johnson City
• Golden Triangle (Texas) consisting of Beaumont, Port Arthur, and Orange.
• In Virginia:
  • Historic Triangle, three historic colonial communities on the Virginia Peninsula, namely Jamestown, Williamsburg, and Yorktown
  • Tri-Cities, Virginia, consisting of Petersburg, Colonial Heights, and Hopewell in the Greater Richmond Region
• Tri-Cities, Washington, consisting of Richland, Pasco, and Kennewick, Washington
  • Tri-Cities metropolitan area, metropolitan area centered on Tri-Cities, Washington

• Chandigarh Tricity, consisting of Chandigarh, Panchkula and Mohali.
• Mumbai Metropolitan Area, consisting of Mumbai, Navi Mumbai and Thane.
• Noida Ghaziabad Tricity, consisting of Noida, Greater Noida and Ghaziabad.
• Bhilai-Raipur-Atal Nagar Tricity, consists of Bhilai, Raipur and Naya Raipur.
• Ahmedabad Metropolitan area, consists of Ahmedabad, Gandhinagar and GIFT City.
• Udupi Tri-City, consisting of Udupi, Manipal and Malpe
• Warangal Tri-City, consisting of Warangal, Hanamkonda, and Kazipet.
• Chennai Metropolitan Area,consisting of Chennai,Avadi and Tambaram

• Tricity, Nepal, consisting of the cities of Baglung, Beni and Kusma

• Dammam metropolitan area, consisting of Dhahran, Dammam and Khobar in Saudi Arabia

• Dubai-Sharjah-Ajman metropolitan area, consisting of Dubai, Ajman and Sharjah

• Triangle Region (Denmark) – Kolding, Vejle and Frederica (Danish: trekantsområde)

• Little Kashubian Tricity consisting of Wejherowo, Rumia and Reda
• Tricity, Poland consisting of Gdańsk, Gdynia and Sopot

• Trollhättan, Uddevalla and Vänersborg are called Tri-city (Swedish: Trestad) as a combination

• Dreyeckland – Basel (Switzerland), Weil am Rhein (Germany) and St.Louis (France)

• Sievierodonetsk, Lysychansk and Rubizhne are called Tri-city (Ukrainian: Troye-grad) as a combination

• West Yorkshire Urban Area, the cities of Wakefield, Leeds and Bradford