Demographic Data Report for Puerto Rico Population: Age under 18 "All Races (includes Hispanic), Both Sexes" 2017-2021 American Community Survey 5-Year Data Sorted by Value County, FIPS,Value (Percent),People (Age Under 18),Rank within US "United States",00000,22.5,74234075,"N/A" "Puerto Rico",72001,18.0,597277,"2825 of 3143" Created by statecancerprofiles.cancer.gov on 03/29/2024 10:05 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 under 18, see the dictionary at http://statecancerprofiles.cancer.gov/dictionary.php#population." Data for United States does not include Puerto Rico.