How many people live in ?

Updated annually
In 2025, there were 3.69 million people living in Connecticut. That makes Connecticut the 29th-most populous state, home to 1.1% of people living in the US.

3.69M

population of Connecticut (2025)

1.1%

Connecticut share of the US population (2025)
The population of Connecticut was about 4.1 times higher than it was in 1900. Between 2024 and 2025, the population of Connecticut grew by about 14,000 people.

About 3.69 million people lived in Connecticut in 2025. That's about 4.1 times more than in 1900.

Annual population estimates

What are Connecticut's age demographics?

About 714,200 Connecticut residents were aged 65 and older in 2024. That represents 19.5% of the state’s population compared with 18% in the US overall.
Another 727,800 Connecticut residents, or 19.8% of the state’s population, were aged under 18. For comparison, children account for 21.6% of the US population.

A higher share of Connecticut's population is 65 and older than the US overall.

Population share by age group (2024)

What are Connecticut's racial and ethnic demographics?

A state’s population may have racial and ethnic differences compared with the US overall. These figures reflect how people identified their race alone (not in combination with other races), and separate Hispanic or Latino ethnicity, following Census Bureau reporting standards.
Non-Hispanic white residents make up 62.2% of Connecticut’s population, higher than the national share of 57.5%.
In contrast, Connecticut’s non-Hispanic Asian population accounted for 5.3%, below the 6.5% share nationwide. The non-Hispanic Black or African American population makes up 11% of the state, compared with 12.6% nationally.

A higher share of Connecticut's population is non-Hispanic white than the US overall.

Population share by race and ethnicity (2024)

What are Connecticut's most populous planning regions?

In 2024, three out of nine planning regions accounted for over half of Connecticut's population:
  • Capitol Planning Region, 991,500 (27% of the population)
  • Western Connecticut Planning Region, 637,000 (17.3%)
  • South Central Connecticut Planning Region, 576,700 (15.7%)

In 2024, Capitol Planning Region was the most populous planning region in Connecticut.

Population estimates

What are Connecticut's most populous cities?

The largest city in Connecticut is Bridgeport with about 151,600 residents in 2024.

Cities and planning regions in Connecticut ranked by population

Cities and planning regions in Connecticut ranked by population
1.

Bridgeport 

151,599
2.

Stamford 

139,134
3.

New Haven

137,562
4.

Hartford 

122,129
5.

Waterbury 

115,908
6.

Norwalk 

93,661
7.

Danbury 

88,692
8.

New Britain

75,871
9.

Bristol 

62,195
10.

Meriden 

60,849

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Methodology

USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.

The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.

Page sources

USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.