Population of Counties in Connecticut (2018)

Name 2018 Population Growth Rate
Fairfield County949,1913.20%
Hartford County895,497-0.00%
New Haven County859,973-0.42%
New London County269,307-1.73%
Litchfield County183,097-3.55%
Middlesex County163,433-1.32%
Tolland County151,145-1.35%
Windham County116,042-2.15%