and county FIPS codes for the United States can also be found at: https://web.archive.org/web/20140330081907/http://www.census.gov/geo/reference/codes/cou.html https://www.census.gov/geographies/reference-files/2020/demo/popest/2020-fips.html https://www.census.gov/2010census/xls/fips_codes_website.xls https://www.census.gov/prod/techdoc/cbp/cbp95/st-cnty.pdf https://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/home/?cid=nrcs143_013697 Country code Standards of the United States