Connecticut Map

List of Counties in Connecticut

CountyFIPS CodeCounty SeatEstablishedPopulationArea (sq mi)Area (km2)
Fairfield County1Bridgeport1666916,8296261,621
Hartford County3Hartford1666894,0147361,906
Litchfield County5Litchfield1751189,9279202,383
Middlesex County7Middletown1785165,676369956
New Haven County9New Haven1666862,4776061,570
New London County11New London1666274,0556661,725
Tolland County13Rockville1785152,6914101,062
Windham County15Willimantic and Putnam1726118,4285131,329