Description: The TIGER/Line shapefiles are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database. These shapefiles represent urban areas that are densely developed, encompassing residential, commercial, and other nonresidential land uses. In the 2020 release, there are 2,645 Urban Areas identified, each with a minimum population of 5,000 or a housing unit count of 2,000 units.