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    • TIGER/Line Shapefile, 2021, State, Maryland, County Subdivisions

    Metadata Updated: November 1, 2022

    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.

    County subdivisions are the primary divisions of counties and their equivalent entities for the reporting of Census Bureau data. They include legally-recognized minor civil divisions (MCDs) and statistical census county divisions (CCDs), and unorganized territories. For the 2010 Census, the MCDs are the primary governmental and/or administrative divisions of counties in 29 States and Puerto Rico; Tennessee changed from having CCDs for Census 2000 to having MCDs for the 2010 Census. In MCD States where no MCD exists or is not defined, the Census Bureau creates statistical unorganized territories to complete coverage. The entire area of the United States, Puerto Rico, and the Island Areas are covered by county subdivisions.

    The boundaries of most legal MCDs are as of January 1, 2021, as reported through the Census Bureau's Boundary and Annexation Survey (BAS). The boundaries of all CCDs, delineated in 21 states, are those as reported as part of the Census Bureau's Participant Statistical Areas Program (PSAP) for the 2020 Census.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date October 31, 2022
    Metadata Created Date November 1, 2022
    Metadata Updated Date November 1, 2022
    Reference Date(s) 2021 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from Archived NGDA Standalones

    Other Data Resources

    Graphic Preview

    URL for the TigerWeb Mapping Service

    Additional Metadata

    Resource Type Dataset
    Metadata Date October 31, 2022
    Metadata Created Date November 1, 2022
    Metadata Updated Date November 1, 2022
    Reference Date(s) 2021 (publication)
    Responsible Party U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Spatial Data Collection and Products Branch (Publisher)
    Contact Email
    Guid tl_2021_24_cousub.shp.iso.xml
    Access Constraints Access Constraints: None, Use Constraints: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.
    Bbox East Long -74.986282
    Bbox North Lat 39.723037
    Bbox South Lat 37.886605
    Bbox West Long -79.487651
    Coupled Resource
    Frequency Of Update notPlanned
    Graphic Preview Description URL for the TigerWeb Mapping Service
    Graphic Preview File https://tigerweb.geo.census.gov/arcgis/services/TIGERweb/tigerWMS_Current/MapServer/WmsServer?REQUEST=GetMap&SERVICE=WMS&VERSION=1.3.0&LAYERS=County_Subdivisions63689,County_Subdivisions_Labels25452&STYLES=default,default&FORMAT=image/svg+xml&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE&CRS=EPSG:4326&BBOX=+37.9649,-85.7590,+38.2928,-85.0133&WIDTH=256&HEIGHT=256
    Graphic Preview Type URL
    Harvest Object Id 6ec8f762-b237-493c-98db-228abafad5c6
    Harvest Source Id 1f2212ed-f1f8-4ea1-b928-e306f77f2247
    Harvest Source Title Archived NGDA Standalones
    Licence
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-79.487651, 37.886605], [-74.986282, 37.886605], [-74.986282, 39.723037], [-79.487651, 39.723037], [-79.487651, 37.886605]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4269
    Spatial Harvester True
    Temporal Extent Begin 2020-06
    Temporal Extent End 2021-05

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