Connecticut Citizen Voting-age Population By County in 2011 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2011, the citizen voting-age population for Connecticut was 2,510,770 and represented 70.56% of the total Connecticut population.

Among all Connecticut counties, Hartford had the highest citizen voting-age population (629.89K), followed by New Haven (616.96K), and Fairfield (588.50K).

In terms of percentages, Tolland had the highest percentage of its population being citizens of voting-age (76.64%), followed by Litchfield (75.71%), and Middlesex (75.20%).

The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.

You can see similar information for other states and by state for the United States.

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Connecticut Citizen Voting-age Population By County in 2011
Connecticut Citizen Voting-age Population By County in 2011
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County Citizen Voting-age Population % of County Population
Hartford 629890 70.73
New Haven 616960 71.84
Fairfield 588500 64.59
New London 202575 74.23
Litchfield 143640 75.71
Middlesex 124280 75.20
Tolland 116325 76.64
Windham 88605 75.11