This page lists all municipalities that have been incorporated as cities in the U.S. state of Connecticut. City incorporation requires a Special Act by the Connecticut General Assembly. All cities in Connecticut are dependent municipalities, meaning they are located within and subordinate to a town. However, except for one, all currently existing cities in Connecticut are consolidated with their parent town. Former cities are listed on a separate table below.
Note that towns in Connecticut are allowed to adopt a city form of government without the need to re-incorporate as a city. Connecticut state law also makes no distinction between a consolidated town/city and a regular town. Bolded city names indicate the state's largest cities, with the most populated being Bridgeport. Population is from 2010 Census data, where available.
|City||County||Population||Date chartered as city||Date consolidated with town|
|Groton||New London||10,010||1964||Not consolidated|
|New Haven||New Haven||129,779||1784||1897|
|New London||New London||27,620||1784||1874|
|West Haven||New Haven||52,721||1961||1961|
Administered by the town of Winchester
|Former City||Date chartered as city||Date of disestablishment||Disposition|
|South Norwalk||1871||1913||Consolidated with Town and City of Norwalk in 1913. Now a neighborhood and a taxing district|
|Rockville||1889||1965||Consolidated with the Town of Vernon. Now a CDP .|
|Willimantic||1893||1983||Now a CDP in the town of Windham|
|Putnam||1895||1984||Now a CDP in the town of Putnam|
See also 
- List of towns in Connecticut
- List of municipalities of Connecticut by population
- Administrative divisions of Connecticut
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