Counties of Connecticut

Connecticut has 9 counties, home to 3,688,496 people across 12,542 km². Each county below opens its full profile — Census Bureau and American Community Survey figures, and how it ranks against the rest of Connecticut and the country.

Counties: 9
Population: 3,688,496; 2025 estimate; #29 of 51 states
Area: 12,542 km²; #48 of 51 states
Density: 294; per km²; #5 of 51 states

How Connecticut's counties spread

Across Connecticut's counties: the middle value, where the state ranks among all states (1 = highest median), and which county is highest and lowest. Medians rather than totals, since most of these are rates that cannot be added up.

Amenities & Infrastructure

Indicator	Median	Rank	Highest	Lowest
Households with Broadband2024	91.6%	7 / 50	Western Connecticut Planning Region94.7%	Naugatuck Valley Planning Region90.8%
Median Gross Rent2024	$1,411	5 / 50	Western Connecticut Planning Region$2,110	Northeastern Connecticut Planning Region$1,155
Median Home Value2024	$335,600	13 / 50	Western Connecticut Planning Region$652,900	Northeastern Connecticut Planning Region$307,600
Owner-Occupied Homes2024	66.4%	47 / 50	Northeastern Connecticut Planning Region77.3%	South Central Connecticut Planning Region60.5%
Vacant Homes2024	6.5%	48 / 50	Northwest Hills Planning Region14.2%	Greater Bridgeport Planning Region5.1%

Demography

Indicator	Median	Rank	Highest	Lowest
Aged 65 and Over2024	19.2%	36 / 50	Northwest Hills Planning Region23.1%	Greater Bridgeport Planning Region16.0%
American Indian & Alaska Native2024	0.1%	29 / 50	Southeastern Connecticut Planning Region0.3%	Northwest Hills Planning Region0.0%
Asian, non-Hispanic2024	3.8%	4 / 50	Capitol Planning Region6.0%	Northeastern Connecticut Planning Region1.3%
Average Household Size2024people	2.4	26 / 50	Greater Bridgeport Planning Region2.7	Lower Connecticut River Valley Planning Region2.3
Black, non-Hispanic2024	9.3%	12 / 50	South Central Connecticut Planning Region13.0%	Northeastern Connecticut Planning Region1.4%
Foreign-Born2024	13.7%	3 / 50	Western Connecticut Planning Region23.8%	Northeastern Connecticut Planning Region4.4%
Hispanic or Latino2024	17.7%	5 / 50	Greater Bridgeport Planning Region26.7%	Northeastern Connecticut Planning Region5.2%
Median Age2024years	41.5	27 / 50	Northwest Hills Planning Region47.1	Greater Bridgeport Planning Region39.8
Sex Ratio2024per 1,000 males	1,035	7 / 50	South Central Connecticut Planning Region1,069	Southeastern Connecticut Planning Region998
Speak a Language Other Than English2024	22.3%	5 / 50	Greater Bridgeport Planning Region34.1%	Northeastern Connecticut Planning Region6.3%
Under 182024	19.6%	42 / 50	Greater Bridgeport Planning Region22.1%	Lower Connecticut River Valley Planning Region16.7%
Veterans2024	5.0%	49 / 50	Southeastern Connecticut Planning Region8.0%	Greater Bridgeport Planning Region3.0%
White, non-Hispanic2024	60.0%	40 / 50	Northeastern Connecticut Planning Region86.3%	Greater Bridgeport Planning Region51.9%

Economy

Indicator	Median	Rank	Highest	Lowest
Below Poverty Line2024	10.3%	38 / 50	Greater Bridgeport Planning Region12.4%	Lower Connecticut River Valley Planning Region6.8%
Households on SNAP2024	12.4%	23 / 50	Naugatuck Valley Planning Region14.5%	Lower Connecticut River Valley Planning Region6.8%
Income Inequality2024index	0.469	4 / 50	Western Connecticut Planning Region0.545	Northeastern Connecticut Planning Region0.412
Median Household Income2024	$90,589	6 / 50	Western Connecticut Planning Region$128,188	Naugatuck Valley Planning Region$86,191
Per Capita Income2024	$51,016	4 / 50	Western Connecticut Planning Region$82,266	Naugatuck Valley Planning Region$46,363
Unemployment Rate2024	5.4%	10 / 50	Greater Bridgeport Planning Region7.3%	Lower Connecticut River Valley Planning Region3.8%

Education

Indicator	Median	Rank	Highest	Lowest
Bachelor's Degree or Higher2024	41.7%	4 / 50	Western Connecticut Planning Region55.5%	Northeastern Connecticut Planning Region26.1%
High School or Higher2024	92.1%	21 / 50	Lower Connecticut River Valley Planning Region95.5%	Greater Bridgeport Planning Region87.2%

Health Coverage

Indicator	Median	Rank	Highest	Lowest
No Health Insurance2024	4.7%	45 / 50	Greater Bridgeport Planning Region8.6%	Lower Connecticut River Valley Planning Region3.3%
With a Disability2024	12.4%	47 / 50	Southeastern Connecticut Planning Region14.8%	Western Connecticut Planning Region9.5%

Population & Density

Indicator	Median	Rank	Highest	Lowest
Population2025	337,697	3 / 50	Capitol Planning Region994,115	Northeastern Connecticut Planning Region98,096
Population Density2025/km²	374	3 / 50	Greater Bridgeport Planning Region930	Northwest Hills Planning Region56

Work & Commute

Indicator	Median	Rank	Highest	Lowest
Commute by Public Transit2024	1.4%	3 / 50	Western Connecticut Planning Region7.0%	Northeastern Connecticut Planning Region0.3%
Households with No Vehicle2024	7.4%	7 / 50	South Central Connecticut Planning Region11.4%	Northeastern Connecticut Planning Region4.8%
Mean Commute Time2024minutes	26.9	10 / 50	Greater Bridgeport Planning Region31.3	South Central Connecticut Planning Region23.5
Work from Home2024	15.1%	6 / 50	Western Connecticut Planning Region21.5%	Southeastern Connecticut Planning Region11.7%

All counties

County	Population 2025	Area	Median income
Capitol Planning Region	994,115	2,661 km²	$93,394
Greater Bridgeport Planning Region	337,697	363 km²	$89,667
Lower Connecticut River Valley Planning Region	177,311	1,098 km²	$104,428
Naugatuck Valley Planning Region	463,349	1,069 km²	$86,191
Northeastern Connecticut Planning Region	98,096	1,435 km²	$90,589
Northwest Hills Planning Region	114,690	2,037 km²	$93,551
South Central Connecticut Planning Region	578,741	951 km²	$88,197
Southeastern Connecticut Planning Region	284,015	1,549 km²	$86,586
Western Connecticut Planning Region	640,482	1,378 km²	$128,188

Compare Connecticut's counties on a map, add layers and run a scatter — open the atlas, or browse all 3,144 US counties or all states.