The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...
ZIP code tabulation areas (ZCTAs) developed and used by the U.S. Census Bureau. These are "generalized areal representations of United States Postal Service (USPS) ZIP Code service areas." Coverage is
Madison Urban Area Boundary. Approved 4/3/2013. The Urban Area Boundary determines or affects: The eligibility of areas for Federal Surface Transportation Program (STP) Urban and other FHWA and Federa
Co-publishing INSEE and IGN, Contours... IRIS® is a digitized fund of IRIS defined by INSEE for census purposes in all municipalities with more than 10,000 inhabitants and most municipalities with 5,0