Demographics Table
Demographic Data Report for Connecticut by County
Population: Age 18-39
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 18-39)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| Connecticut | N/A | 28.3 | 1,027,100 | 41 of 52 |
| United States | N/A | 29.5 | 98,945,767 | N/A |
| Litchfield County | Rural | 25.1 | 46,749 | 1,836 |
| Fairfield County | Urban | 26.8 | 259,036 | 1,196 |
| Middlesex County | Urban | 27.1 | 44,897 | 1,112 |
| New London County | Urban | 28.0 | 75,313 | 858 |
| New Haven County | Urban | 29.1 | 252,598 | 638 |
| Windham County | Urban | 29.2 | 34,055 | 615 |
| Hartford County | Urban | 29.3 | 263,928 | 594 |
| Tolland County | Urban | 33.7 | 50,524 | 205 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/21/2026 9:48 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 18-39, 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.