Urban and rural areas
The Census Bureau identifies both individual urban areas and rural areas of the nation. Urban areas represent densely developed territory, and encompass residential, commercial, and other non-residential urban land uses. Rural areas encompass all population, housing, and territory not included within an urban area. The Census Bureau delineates urban areas after each decennial census by applying specified criteria to decennial census and other data.
Use the Social Explorer reporting tool to create data reports for urban areas in the United States. Here is an example from the 2019 American Community Survey 5-Year Estimates: https://www.socialexplorer.com/tables/ACS2019_5yr/R12714154
The Census Bureau has officially delineated urban territory, population and housing since the 1910 Census. For more information about the history of urban and rural geographical classification, click here.