Demographics Table
Demographic Data Report for Connecticut by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Value
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age Under 18)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| Connecticut | N/A | 20.4 | 733,998 | 42 of 52 |
| United States | N/A | 22.2 | 73,645,238 | N/A |
| Middlesex County | Urban | 16.9 | 27,881 | 2,917 |
| Tolland County | Urban | 18.2 | 26,744 | 2,731 |
| Litchfield County | Rural | 18.3 | 34,055 | 2,702 |
| Windham County | Urban | 18.7 | 21,693 | 2,629 |
| New London County | Urban | 19.6 | 52,432 | 2,404 |
| New Haven County | Urban | 20.3 | 174,687 | 2,213 |
| Hartford County | Urban | 20.8 | 186,173 | 2,044 |
| Fairfield County | Urban | 21.9 | 210,333 | 1,606 |
Notes:
Created by statecancerprofiles.cancer.gov on 07/05/2025 2:47 pm.
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 under 18, 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 07/05/2025 2:47 pm.
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 under 18, 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.