Connecticut Population By County in 2013

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2013, the population of Connecticut was 3,595,792. Among all Connecticut counties, Fairfield[object Promise] had the highest population (940,189), followed by Hartford[object Promise] (897,837), and New Haven[object Promise] (863,035). Windham[object Promise] was the least populated county (117,551).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

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

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Connecticut Population By County in 2013
Connecticut Population By County in 2013
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County Population % of State Population
Fairfield 940189 26.15
Hartford 897837 24.97
Litchfield 186866 5.20
Middlesex 165390 4.60
New Haven 863035 24.00
New London 273093 7.60
Tolland 151831 4.22
Windham 117551 3.27