Largest Counties in Connecticut

There are a total of 8 counties or county equivalents in the U.S. state of Connecticut. Among them, the five biggest counties by population are Fairfield, Hartford, New Haven, New London, and Litchfield. In the following table, you will see the list of all counties in Connecticut, each with population, land area, density and the time of establishment.

Rank County Population County seat Established Population Area (km2) Density
1 Fairfield County 916,818 Bridgeport 1666 916,829 1,621 565.59
2 Hartford County 894,003 Hartford 1666 894,014 1,906 469.05
3 New Haven County 862,466 New Haven 1666 862,477 1,570 549.34
4 New London County 274,044 New London 1666 274,055 1,725 158.87
5 Litchfield County 189,916 Litchfield 1751 189,927 2,383 79.7
6 Middlesex County 165,665 Middletown 1785 165,676 956 173.29
7 Tolland County 152,680 Rockville 1785 152,691 1,062 143.77
8 Windham County 118,417 Willimantic 1726 118,428 1,329 89.1

Largest Counties in Connecticut

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