</timeline><ref>{{Cytuj stronę|url=https://www.census.gov/programs-surveys/popest/data/tables.2018.html| tytuł = Population and Housing Unit Estimates | język =en|archiwum= https://web.archive.org/web/20190731011241/https://www.census.gov/programs-surveys/popest/data/tables.2018.html}}</ref><ref>{{Cytuj stronę|url=https://www.census.gov/prod/www/decennial.html| tytuł = Census of Population and Housing |publisheropublikowany=Census.gov |język =en |archiwum=https://www.webcitation.org/6YSasqtfX?url=http://www.census.gov/prod/www/decennial.html}}</ref>