USDOT_BTS_NTAD_Counties eng; USA utf8 dataset United States Census Bureau (USCB) 301-763-1128 4600 Silver Hill Rd Washington DC 20233 US geo.geography@census.gov pointOfContact 2026-07-15 ISO 19139 Geographic Information - Metadata ISO/TS 19139:2007 solid 3235 3857 EPSG Counties 1995-07-01 creation 2024-07-09 publication 2024-01-26 revision United States Census Bureau (USCB) originator vector The Counties dataset was updated on October 31, 2023 from the United States Census Bureau (USCB) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) 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 (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The primary legal divisions of most states are termed counties. In Louisiana, these divisions are known as parishes. In Alaska, which has no counties, the equivalent entities are the organized boroughs, city and boroughs, municipalities, and for the unorganized area, census areas. The latter are delineated cooperatively for statistical purposes by the State of Alaska and the Census Bureau. In four states (Maryland, Missouri, Nevada, and Virginia), there are one or more incorporated places that are independent of any county organization and thus constitute primary divisions of their states. These incorporated places are known as independent cities and are treated as equivalent entities for purposes of data presentation. The District of Columbia and Guam have no primary divisions, and each area is considered an equivalent entity for purposes of data presentation. The Census Bureau treats the following entities as equivalents of counties for purposes of data presentation: Municipios in Puerto Rico, Districts and Islands in American Samoa, Municipalities in the Commonwealth of the Northern Mariana Islands, and Islands in the U.S. Virgin Islands. The entire area of the United States, Puerto Rico, and the Island Areas is covered by counties or equivalent entities. The boundaries for counties and equivalent entities are mostly as of January 1, 2023, as reported through the Census Bureau's Boundary and Annexation Survey (BAS). A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529015 The Census Bureau releases extracts of the MAF/TIGER database in the form of TIGER/Line Shapefiles for others to use in geographic information systems (GIS) or for other geographic applications. Acknowledgment of the U.S. Department of Commerce, U.S. Census Bureau, Geography Division, and the Bureau of Transportation Statistics (BTS) [distributor]. onGoing United States Census Bureau (USCB) 301-763-1128 4600 Silver Hill Rd Washington DC 20233 US geo.geography@census.gov pointOfContact notPlanned NTAD National Transportation Atlas Database National Transportation Atlas Database vector polygon Administrative Boundaries Boundary Nation County Borough Parish Municipio theme none USA National place none The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions. Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. This NTAD dataset is a work of the United States government as defined in 17 U.S.C. § 101 and as such are not protected by any U.S. copyrights. This work is available for unrestricted public use. otherRestrictions Access Constraints: unrestricted National Transportation Atlas Database 2024-07-09 publication Bureau of Transportation Statistics (BTS) publisher largerWorkCitation vector eng; USA boundaries Native Dataset Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362 -179.231101251189 179.859665728994 -14.6018060155133 71.4397857066593 2023-10-31 0 Counties A data dictionary resource of attribute information is accessible at https://doi.org/10.21949/1529015 Bureau of Transportation Statistics (BTS) NTAD Program Manager 1200 New Jersey Ave. SE Washington DC 20590 United States ntad@dot.gov distributor None. No fees are applicable for obtaining the dataset. https://doi.org/10.21949/1522038 http Open Data Catalog Web page to view and download dataset. The file download formats available include: ESRI File Geodatabase or Shapefile, GeoPackage, Comma-Seperated Values (CSV), Microsoft Excel, GeoJSON, KML, Feature Collection, and SQLite Geodatabase. download https://doi.org/10.21949/1522040 http ArcGIS REST Services Directory Feature Server (WFS) complies with OGC WFS Map Service for visualizing geospatial information download https://doi.org/10.21949/1522041 http ArcGIS Online Hosted Vector Tile Service ArcGIS Online Hosted Esri ArcGIS Vector Tile Service for visualizing geospatial information download https://doi.org/10.21949/1520800 http Repository and Open Science Access Portal (ROSA P) NTAD Archive Collection ZIP download dataset Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database by nation, state, county, and entity. Census MAF/TIGER data for all of the aforementioned geographic entities are then distributed among the shapefiles each containing attributes for line, polygon, or landmark geographic data. asNeeded United States Census Bureau (USCB) 301-763-1128 4600 Silver Hill Rd Washington DC 20233 United States geo.geography@census.gov custodian