Interpretation of Demographics Data
Demographic Data Report for Connecticut by County
Population: Age 40-64
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
United States
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 31.3 percent.
- People (Age 40-64) : The number of people (age 40-64) is 104,825,270.
- Rank within US : N/A
Connecticut
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 33.0 percent.
- People (Age 40-64) : The number of people (age 40-64) is 1,195,265.
- Rank within US : This county is ranked 3 of 52
Tolland County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 30.4 percent.
- People (Age 40-64) : The number of people (age 40-64) is 45,642.
- Rank within US : This county is ranked 2235 of 3143
Hartford County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 32.2 percent.
- People (Age 40-64) : The number of people (age 40-64) is 290,534.
- Rank within US : This county is ranked 1301 of 3143
New Haven County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 32.2 percent.
- People (Age 40-64) : The number of people (age 40-64) is 279,187.
- Rank within US : This county is ranked 1301 of 3143
New London County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 32.5 percent.
- People (Age 40-64) : The number of people (age 40-64) is 87,244.
- Rank within US : This county is ranked 1114 of 3143
Windham County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 33.3 percent.
- People (Age 40-64) : The number of people (age 40-64) is 38,921.
- Rank within US : This county is ranked 687 of 3143
Litchfield County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 34.2 percent.
- People (Age 40-64) : The number of people (age 40-64) is 63,698.
- Rank within US : This county is ranked 362 of 3143
Fairfield County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 34.4 percent.
- People (Age 40-64) : The number of people (age 40-64) is 332,942.
- Rank within US : This county is ranked 316 of 3143
Middlesex County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 34.4 percent.
- People (Age 40-64) : The number of people (age 40-64) is 57,097.
- Rank within US : This county is ranked 316 of 3143
Notes:
Created by statecancerprofiles.cancer.gov on 03/21/2026 6:13 pm.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 40-64, see the dictionary.
Note: This website still uses Connecticut counties instead of planning regions for consistency of geographies across data topics. If/when all data sources have new planning regions, then this website will switch to using them.
Data for United States does not include Puerto Rico.