Demographics Table
Demographic Data Report for Connecticut by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age 40 And Over)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| Connecticut | N/A | 51.5 | 1,865,822 | 8 of 52 |
| United States | N/A | 48.5 | 162,458,898 | N/A |
| Fairfield County | Urban | 51.5 | 498,290 | 1,669 |
| Hartford County | Urban | 50.1 | 451,800 | 2,012 |
| Litchfield County | Rural | 57.0 | 106,204 | 566 |
| Middlesex County | Urban | 56.3 | 93,437 | 638 |
| New Haven County | Urban | 50.8 | 441,096 | 1,836 |
| New London County | Urban | 52.7 | 141,681 | 1,344 |
| Tolland County | Urban | 48.4 | 72,621 | 2,359 |
| Windham County | Urban | 52.0 | 60,693 | 1,544 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/23/2026 3:41 am.
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 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.
Data for United States does not include Puerto Rico.