Demographic Data Report for Connecticut by County Population: Age 18-39 "All Races (includes Hispanic), Both Sexes" 2017-2021 American Community Survey 5-Year Data Sorted by Name County, FIPS,Value (Percent),People (Age 18-39),Rank within US "Connecticut",09000,28.2,1015328,"8 of 52" "United States",00000,29.6,97620321,"N/A" "Fairfield County",09001,26.6,254201,"1849 of 3143" "Hartford County",09003,28.6,257280,"2376 of 3143" "Litchfield County",09005,23.7,43949,"876 of 3143" "Middlesex County",09007,26.0,42763,"1638 of 3143" "New Haven County",09009,29.2,252491,"2489 of 3143" "New London County",09011,29.0,78003,"2454 of 3143" "Tolland County",09013,35.4,53105,"2990 of 3143" "Windham County",09015,28.8,33536,"2409 of 3143" Created by statecancerprofiles.cancer.gov on 03/28/2024 11:31 am. Source: Demographic data provided by the Census Bureau (http://www.census.gov/) & the American Community Survey (http://www.census.gov/acs/www/). "For more information about Population: Age 18-39, see the dictionary at http://statecancerprofiles.cancer.gov/dictionary.php#population." Data for United States does not include Puerto Rico.