Southeastern Connecticut Planning Region, Connecticut Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 6th-largest in Connecticut
The population of Southeastern Connecticut Planning Region, Connecticut is 279,025 as of the 2023 American Community Survey, making it the 6th-largest county in Connecticut. The median household income is $84,185, the median home value is $293,900, and the median age is 41.0.
The population of Southeastern Connecticut Planning Region has grown 1.5% since 2020 (278,379 → 282,602), a +0.38% annualized rate.
Southeastern Connecticut Planning Region, CT
279,025
Population
+0.38%
Annual growth
466
People / sq mi
$84,185
Median Income
$293,900
Median Home Value
Southeastern Connecticut Planning Region covers 598 sq mi of land at 466.5 people per square mile.
About Southeastern Connecticut Planning Region, CT
Southeastern Connecticut Planning Region is a county in Connecticut with a population of 279,025. It ranks #6 among counties in Connecticut by population. The median age is 41.0, older than the national median. The population is 50.1% male and 49.9% female.
The median household income in Southeastern Connecticut Planning Region is $84,185, above the US median of $74,580. 7.8% of residents live below the federal poverty level. Home values sit at a median of $293,900, with monthly rent averaging $1,316. The homeownership rate of 65.4% is close to the national rate of 64.8%.
Educational attainment in Southeastern Connecticut Planning Region reflects 34.6% of adults 25 and older holding a bachelor's degree or higher, near the national average of 34.3%. Roughly 10.6% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 24.1 minutes each way.
Southeastern Connecticut Planning Region Population History (2020-2024)
The county of Southeastern Connecticut Planning Region had a population of 278,379 in 2020 and 282,602 in 2024, a 1.5% growth over 4 years. The peak was 282,602 in 2024. Average annual growth rate: 0.38%.
282,602
Population (2024)
278,379
Population (2020)
282,602
Peak (2024)
0.38%
Avg Annual Growth
| Year | Population |
|---|---|
| 2020 | 278,379 |
| 2021 | 278,855 |
| 2022 | 279,398 |
| 2023 | 280,622 |
| 2024 | 282,602 |
Race & Ethnicity
| White | 76.2% |
| Black or African American | 5.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.6% |
| Two or More Races | 0.0% |
Age & Sex
41.0
Median Age
49.9%
Female
50.1%
Male
19.0%
Age 65+
Age Distribution
Children (under 15): 15.8% · Seniors (65+): 19.0%
Income & Poverty
| Median household income | $84,185$-9,575 vs state |
| Mean household income | $108,630 |
| Per-capita income | $45,691 |
| Poverty rate | 7.8%+1.0% vs state |
| Unemployment rate | 3.1% |
| Employment-to-population | 58.7% |
Top Industries by Employment
The largest employment sector in Southeastern Connecticut Planning Region is professional & business services, accounting for 26.0% of workers.
How residents commute
1.3%
Drive alone
2.8%
Carpool
76.3%
Public transit
10.6%
Work from home
24.1 min
Avg commute
Housing
$293,900$-49,300 vs state
Median home value
$1,316
Median rent
65.4%
Homeownership rate
125,728
Total housing units
91.1%
Occupied
8.9%
Vacant
34.6%
Renter-occupied
Social & access
95.5%
With health insurance
94.4%
With broadband internet
34.0%
Foreign-born
8.7%
Veterans (18+)
14.4%
With a disability
85.1%
Speak language other than English at home
Education
92.6%
High School+
34.6%
Bachelor's+
Largest cities in Connecticut
Other counties in Connecticut
Part of Connecticut
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County rankings
Frequently Asked Questions
Southeastern Connecticut Planning Region, Connecticut has a population of 279,025 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 6th-largest county in Connecticut. Population density is 466 people per square mile.
The population of Southeastern Connecticut Planning Region has grown 1.5% since 2020 (278,379 → 282,602), a +0.38% annualized rate.
The median household income in Southeastern Connecticut Planning Region, Connecticut is $84,185, with mean (average) household income of $108,630 and per-capita income of $45,691. 7.8% of residents live below the federal poverty level.
In Southeastern Connecticut Planning Region, the largest racial and ethnic groups are White (76.2%), Black or African American (5.5%), Hispanic or Latino (2.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Southeastern Connecticut Planning Region, Connecticut is 41.0 years. Residents are 49.9% female and 50.1% male.
The median home value in Southeastern Connecticut Planning Region is $293,900 and median monthly rent is $1,316. 65.4% of occupied housing units are owner-occupied. The county has 125,728 total housing units, 8.9% of which are vacant.
The largest employment sector in Southeastern Connecticut Planning Region, Connecticut is professional, scientific, and management services, employing 26.0% of workers. The unemployment rate is 3.1%.
Bridgeport is among the largest cities associated with Southeastern Connecticut Planning Region, Connecticut, with a population of 148,012.
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Statewide data for Connecticut
Population, race, income, age, and trends across Connecticut
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.