Demographics Table
Demographic Data Report for Connecticut by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Rank
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age 40 And Over)
|
Rank within US (of 3143 counties) 
|
|---|---|---|---|---|
| United States | N/A | 48.3 | 160,683,909 | N/A |
| Connecticut | N/A | 51.5 | 1,854,035 | 8 of 52 |
| Tolland County | Urban | 48.8 | 71,647 | 2,265 |
| Hartford County | Urban | 50.4 | 451,068 | 1,909 |
| New Haven County | Urban | 50.9 | 438,743 | 1,802 |
| Fairfield County | Urban | 51.4 | 493,406 | 1,669 |
| Windham County | Urban | 51.9 | 60,248 | 1,542 |
| New London County | Urban | 52.5 | 140,459 | 1,392 |
| Middlesex County | Urban | 56.2 | 92,763 | 630 |
| Litchfield County | Rural | 56.9 | 105,701 | 561 |
Notes:
Created by statecancerprofiles.cancer.gov on 11/14/2025 3:26 am.
Φ Rural-Urban Continuum Codes provided by the USDA.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 40 and over, 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. 2013 Rural-Urban Continuum Codes will be used for Connecticut counties.
Data for United States does not include Puerto Rico.
Created by statecancerprofiles.cancer.gov on 11/14/2025 3:26 am.
Φ Rural-Urban Continuum Codes provided by the USDA.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 40 and over, 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. 2013 Rural-Urban Continuum Codes will be used for Connecticut counties.
Data for United States does not include Puerto Rico.