Western Connecticut Planning Region, Connecticut Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 2nd-largest in Connecticut
The population of Western Connecticut Planning Region, Connecticut is 621,232 as of the 2023 American Community Survey, making it the 2nd-largest county in Connecticut. The median household income is $124,553, the median home value is $625,400, and the median age is 41.5.
The population of Western Connecticut Planning Region has grown 2.9% since 2020 (618,762 → 637,013), a +0.73% annualized rate.
Western Connecticut Planning Region, CT
621,232
Population
+0.73%
Annual growth
1167
People / sq mi
$124,553
Median Income
$625,400
Median Home Value
Western Connecticut Planning Region covers 532 sq mi of land at 1167.4 people per square mile.
About Western Connecticut Planning Region, CT
Western Connecticut Planning Region is a county in Connecticut with a population of 621,232. It ranks #2 among counties in Connecticut by population. The median age is 41.5, older than the national median. The population is 49.1% male and 50.9% female.
The median household income in Western Connecticut Planning Region is $124,553, above the US median of $74,580. 5.2% of residents live below the federal poverty level. Home values sit at a median of $625,400, with monthly rent averaging $2,060. The homeownership rate of 66.2% is close to the national rate of 64.8%.
Educational attainment in Western Connecticut Planning Region reflects 55.0% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 19.1% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 31.0 minutes each way.
Western Connecticut Planning Region Population History (2020-2024)
The county of Western Connecticut Planning Region had a population of 618,762 in 2020 and 637,013 in 2024, a 2.9% growth over 4 years. The peak was 637,013 in 2024. Average annual growth rate: 0.73%.
637,013
Population (2024)
618,762
Population (2020)
637,013
Peak (2024)
0.73%
Avg Annual Growth
| Year | Population |
|---|---|
| 2020 | 618,762 |
| 2021 | 623,927 |
| 2022 | 625,454 |
| 2023 | 630,201 |
| 2024 | 637,013 |
Race & Ethnicity
| White | 64.1% |
| Black or African American | 10.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.0% |
| Two or More Races | 0.0% |
Age & Sex
41.5
Median Age
50.9%
Female
49.1%
Male
17.1%
Age 65+
Age Distribution
Children (under 15): 17.7% · Seniors (65+): 17.1%
Income & Poverty
| Median household income | $124,553+$30,793 vs state |
| Mean household income | $209,168 |
| Per-capita income | $79,648 |
| Poverty rate | 5.2%-1.6% vs state |
| Unemployment rate | 3.7% |
| Employment-to-population | 64.6% |
Top Industries by Employment
The largest employment sector in Western Connecticut Planning Region is professional & business services, accounting for 21.4% of workers.
How residents commute
7.4%
Drive alone
2.6%
Carpool
61.5%
Public transit
19.1%
Work from home
31.0 min
Avg commute
Housing
$625,400+$282,200 vs state
Median home value
$2,060
Median rent
66.2%
Homeownership rate
250,108
Total housing units
92.9%
Occupied
7.1%
Vacant
33.8%
Renter-occupied
Social & access
92.5%
With health insurance
96.5%
With broadband internet
37.3%
Foreign-born
3.4%
Veterans (18+)
9.4%
With a disability
70.7%
Speak language other than English at home
Education
91.7%
High School+
55.0%
Bachelor's+
Largest cities in Connecticut
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County rankings
Common questions about Western Connecticut Planning Region, CT
Frequently Asked Questions
Western Connecticut Planning Region, Connecticut has a population of 621,232 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 2nd-largest county in Connecticut. Population density is 1167 people per square mile.
The population of Western Connecticut Planning Region has grown 2.9% since 2020 (618,762 → 637,013), a +0.73% annualized rate.
The median household income in Western Connecticut Planning Region, Connecticut is $124,553, with mean (average) household income of $209,168 and per-capita income of $79,648. 5.2% of residents live below the federal poverty level.
In Western Connecticut Planning Region, the largest racial and ethnic groups are White (64.1%), Black or African American (10.3%), Hispanic or Latino (1.0%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Western Connecticut Planning Region, Connecticut is 41.5 years. Residents are 50.9% female and 49.1% male.
The median home value in Western Connecticut Planning Region is $625,400 and median monthly rent is $2,060. 66.2% of occupied housing units are owner-occupied. The county has 250,108 total housing units, 7.1% of which are vacant.
The largest employment sector in Western Connecticut Planning Region, Connecticut is professional, scientific, and management services, employing 21.4% of workers. The unemployment rate is 3.7%.
Bridgeport is among the largest cities associated with Western 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.