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Connecticut

9 counties and 363 townships, towns, villages and census designated places have a page.

  • Census data · ACS 2019-2023
  • 1,025 public schools
Browse countiesFind my townSponsor Connecticut
  • 3,675,069 (2024 estimate)Population
  • 9Counties
  • 363Towns with a page
  • 1,025Public schools
  • $93,760Median household income
  • $343,200Median home value

All 9 countiesA to Z

Counties in Connecticut
CountyPlaces with a pageLand area
Capitol Planning Region711,027.4 sq mi
Greater Bridgeport Planning Region21140.2 sq mi
Lower Connecticut River Valley Planning Region31424.1 sq mi
Naugatuck Valley Planning Region27412.8 sq mi
Northeastern Connecticut Planning Region32553.9 sq mi
Northwest Hills Planning Region37786.6 sq mi
South Central Connecticut Planning Region24367.3 sq mi
Southeastern Connecticut Planning Region39598.1 sq mi
Western Connecticut Planning Region81532.1 sq mi

Source: Census Gazetteer 2025: counties, retrieved November 14, 2026.

Largest towns in ConnecticutCensus population estimate

Connecticut against the United StatesOfficial sources, refreshed yearly

Connecticut compared with the United States
Connecticut compared with the United States, American Community Survey 2019-2023
MeasureConnecticutUnited States
Population3,598,348332,387,540
Median household income$93,760$78,538
Median age41.238.7
Median home value$343,200$303,400
Bachelor’s degree or higher41.9%35.0%
Foreign-born residents15.4%13.9%
Owner-occupied homes66.2%65.0%
Mean commute to work26.6 minutes26.6 minutes

Sources: American Community Survey 5-year data profile 2019–2023, state level, state 09, retrieved November 14, 2026; American Community Survey 5-year data profile 2019–2023, the United States, retrieved November 14, 2026.

Population, 2000 to 2020+5.9%
3.4M3.5M3.6M3.7M2000: 3,405,56520002010: 3,574,09720102020: 3,605,94420203,405,5653,605,944
Population of Connecticut at each census
CensusPopulation
20003,405,565
20103,574,097
20203,605,944

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, state level, state 09, retrieved November 15, 2026; Census 2010 Summary File 1: total population, state level, state 09, retrieved November 15, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, state level, state 09, retrieved November 15, 2026.

Household income in Connecticut
Under $50k27.4%
$50k to $100k25.4%
$100k to $150k17.8%
$150k to $200k11.2%
$200k and over18.2%

Median household income $93,760 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, state level, state 09, retrieved November 14, 2026.

Housing tenure in Connecticut
Owner occupied
939,912 units
Renter occupied
480,258 units
Vacancy rate
7.5%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, state level, state 09, retrieved November 14, 2026.

Jobs by sector in Connecticut2023
Health care and social assistance292,377
Retail trade181,494
Manufacturing158,521
Accommodation and food services141,070
Finance and insurance119,436
Professional, scientific, and technical services106,291
Administrative and support and waste management and remediation services90,114
Educational services81,003

1,536,698 employees in 89,234 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.

Source: County Business Patterns 2023: employment by sector, state level, state 09, retrieved November 14, 2026.