100+ datasets found
  1. a

    Colorado County Boundaries

    • data-cdphe.opendata.arcgis.com
    • hub.arcgis.com
    • +1more
    Updated Apr 2, 2016
    + more versions
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    Colorado Department of Public Health and Environment (2016). Colorado County Boundaries [Dataset]. https://data-cdphe.opendata.arcgis.com/datasets/colorado-county-boundaries
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    Dataset updated
    Apr 2, 2016
    Dataset authored and provided by
    Colorado Department of Public Health and Environment
    Area covered
    Description

    This feature class contains county boundaries for all 64 Colorado counties and 2010 US Census attributes data describing the population within each county.

  2. K

    Denver, Colorado County Boundary

    • koordinates.com
    csv, dwg, geodatabase +6
    Updated May 15, 2019
    + more versions
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    City and County of Denver, Colorado (2019). Denver, Colorado County Boundary [Dataset]. https://koordinates.com/layer/101896-denver-colorado-county-boundary/
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    pdf, geopackage / sqlite, geodatabase, shapefile, mapinfo mif, csv, mapinfo tab, kml, dwgAvailable download formats
    Dataset updated
    May 15, 2019
    Dataset authored and provided by
    City and County of Denver, Colorado
    Area covered
    Description

    A polygonal representation of the City and County of Denver's jurisdictional boundary. This datasets also includes all enclaves administered by other jurisdications that are located within the City and County of Denver's boundary.

  3. a

    City Limits

    • data-auroraco.opendata.arcgis.com
    • hub.arcgis.com
    Updated Oct 29, 2015
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    City of Aurora, Colorado Maps (2015). City Limits [Dataset]. https://data-auroraco.opendata.arcgis.com/datasets/AuroraCo::city-limits/about
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    Dataset updated
    Oct 29, 2015
    Dataset authored and provided by
    City of Aurora, Colorado Maps
    Area covered
    Description

    City limits of the City of Aurora, Colorado. The City of Aurora, Colorado (at 164.8 square miles) sits in three different counties: Adams County, Arapahoe County, and Douglas County and lies just east of the City and County of Denver. The city's population is estimated at over 400,000 and is currently the 50th largest city in the U.S.A. The city is annexing land in enclaves and to the east of the city, please check back frequently for the latest data.

  4. Northeastern States County Boundary Set

    • data.ct.gov
    • geodata.ct.gov
    • +2more
    application/rdfxml +5
    Updated Jan 29, 2025
    + more versions
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    Department of Energy and Environmental Protection (2025). Northeastern States County Boundary Set [Dataset]. https://data.ct.gov/Environment-and-Natural-Resources/Northeastern-States-County-Boundary-Set/2vpb-qa9z
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    application/rssxml, tsv, json, application/rdfxml, csv, xmlAvailable download formats
    Dataset updated
    Jan 29, 2025
    Dataset provided by
    Connecticut Department of Energy and Environmental Protectionhttps://portal.ct.gov/deep
    Authors
    Department of Energy and Environmental Protection
    Description

    Northeastern United States County Boundary data are intended for geographic display of state and county boundaries at statewide and regional levels. Use it to map and label counties on a map. These data are derived from Northeastern United States Political Boundary Master layer. This information should be displayed and analyzed at scales appropriate for 1:24,000-scale data. The State of Connecticut, Department of Environmental Protection (CTDEP) assembled this regional data layer using data from other states in order to create a single, seamless representation of political boundaries within the vicinity of Connecticut that could be easily incorporated into mapping applications as background information. More accurate and up-to-date information may be available from individual State government Geographic Information System (GIS) offices. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)

  5. California County Boundaries

    • gis.data.ca.gov
    • s.cnmilf.com
    • +2more
    Updated Oct 16, 2019
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    California Department of Forestry and Fire Protection (2019). California County Boundaries [Dataset]. https://gis.data.ca.gov/datasets/CALFIRE-Forestry::california-county-boundaries
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    Dataset updated
    Oct 16, 2019
    Dataset authored and provided by
    California Department of Forestry and Fire Protectionhttp://calfire.ca.gov/
    Area covered
    Description

    In late 1996, the Dept of Conservation (DOC) surveyed state and federal agencies about the county boundary coverage they used. As a result, DOC adopted the 1:24,000 (24K) scale U.S. Bureau of Reclamation (USBR) dataset (USGS source) for their Farmland Mapping and Monitoring Program (FMMP) but with several modifications. Detailed documentation of these changes is provided by FMMP and included in the lineage section of the metadata.A dataset was made available (approximately 2004) through CALFIRE - FRAP and the California Spatial Information Library (CaSIL), with additional updates throughout subsequent years. More recently, an effort was made to improve the coastal linework by using the previous interior linework from the 24k data, but replacing the coastal linework based on NOAA's ERMA coastal dataset (which used NAIP 2010). In this dataset, all bays (plus bay islands and constructed features) are merged into the mainland, and coastal features (such as islands and constructed features) are not included, with the exception of the Channel Islands which ARE included.This service represents the latest released version, and is updated when new versions are released. As of June, 2019 it represents cnty19_1.

  6. PLACES: County Data (GIS Friendly Format), 2024 release

    • catalog.data.gov
    • data.virginia.gov
    • +4more
    Updated Feb 3, 2025
    + more versions
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    Centers for Disease Control and Prevention (2025). PLACES: County Data (GIS Friendly Format), 2024 release [Dataset]. https://catalog.data.gov/dataset/places-county-data-gis-friendly-format-2020-release-9c9e8
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    Dataset updated
    Feb 3, 2025
    Dataset provided by
    Centers for Disease Control and Preventionhttp://www.cdc.gov/
    Description

    This dataset contains model-based county-level estimates in GIS-friendly format. PLACES covers the entire United States—50 states and the District of Columbia—at county, place, census tract, and ZIP Code Tabulation Area levels. It provides information uniformly on this large scale for local areas at four geographic levels. Estimates were provided by the Centers for Disease Control and Prevention (CDC), Division of Population Health, Epidemiology and Surveillance Branch. Project was funded by the Robert Wood Johnson Foundation in conjunction with the CDC Foundation. Data sources used to generate these model-based estimates are Behavioral Risk Factor Surveillance System (BRFSS) 2022 or 2021 data, Census Bureau 2022 county population estimates, and American Community Survey (ACS) 2018–2022 estimates. The 2024 release uses 2022 BRFSS data for 36 measures and 2021 BRFSS data for 4 measures (high blood pressure, high cholesterol, cholesterol screening, and taking medicine for high blood pressure control among those with high blood pressure) that the survey collects data on every other year. These data can be joined with the census 2022 county boundary file in a GIS system to produce maps for 40 measures at the county level. An ArcGIS Online feature service is also available for users to make maps online or to add data to desktop GIS software. https://cdcarcgis.maps.arcgis.com/home/item.html?id=3b7221d4e47740cab9235b839fa55cd7

  7. w

    Data from: U.S. County Boundaries

    • data.wu.ac.at
    Updated Jul 3, 2018
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    Department of Homeland Security (2018). U.S. County Boundaries [Dataset]. https://data.wu.ac.at/schema/data_gov/NTU2MDlmZWQtOTYzYy00NDA1LTk4OTgtZGFhNGFjMmJlN2Iy
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    Dataset updated
    Jul 3, 2018
    Dataset provided by
    Department of Homeland Security
    Area covered
    United States
    Description

    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 presentationMunicipios 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, 2013, primarily as reported through the Census Bureau's Boundary and Annexation Survey (BAS). However, some changes made after January 2013, including the addition and deletion of counties, are included.

  8. w

    Weld County Property Ownership Map

    • gishub.weldgov.com
    Updated Oct 7, 2019
    + more versions
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    WeldCounty (2019). Weld County Property Ownership Map [Dataset]. https://gishub.weldgov.com/documents/d803a62cd16944ab8e57861f8dec0ad4
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    Dataset updated
    Oct 7, 2019
    Dataset authored and provided by
    WeldCounty
    Area covered
    Weld County
    Description

    This map shows the breakdown of parcel ownership in Weld County by surface owner. The parcels that are 40 acres and larger are labeled with the owner name, the parcels that are between 10 acres and 40 acres are labeled with a number that corresponds to the owner name index and everything smaller than 10 acres is too small to label.

  9. d

    Data from: USGS Interactive Map of the Colorado Front Range Infrastructure...

    • search.dataone.org
    Updated Dec 1, 2016
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    U.S. Geological Survey (USGS), Biewick, L.R.H., Gunther, G.L., Roberts, S.B., Otton, J.K., Cook, T. and Fishman, N.S. (2016). USGS Interactive Map of the Colorado Front Range Infrastructure Resources [Dataset]. https://search.dataone.org/view/06a6bdd8-73d2-450d-bb9b-ab40d47c9d84
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    Dataset updated
    Dec 1, 2016
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Authors
    U.S. Geological Survey (USGS), Biewick, L.R.H., Gunther, G.L., Roberts, S.B., Otton, J.K., Cook, T. and Fishman, N.S.
    Area covered
    Description

    Infrastructure, such as roads, airports, water and energy transmission and distribution facilities, sewage treatment plants, and many other facilities, is vital to the sustainability and vitality of any populated area. Rehabilitation of existing and development of new infrastructure requires three natural resources: natural aggregate (stone, sand, and gravel), water, and energy http://rockyweb.cr.usgs.gov/frontrange/overview.htm.

    The principal goals of the U.S. Geological Survey (USGS) Front Range Infrastructure Resources Project (FRIRP) were to develop information, define tools, and demonstrate ways to: (1) implement a multidisciplinary evaluation of the distribution and quality of a region's infrastructure resources, (2) identify issues that may affect availability of resources, and (3) work with cooperators to provide decision makers with tools to evaluate alternatives to enhance decision-making. Geographic integration of data (geospatial databases) can provide an interactive tool to facilitate decision-making by stakeholders http://rockyweb.cr.usgs.gov/frontrange/overview.htm.

  10. d

    County Map - StratMap_County_poly

    • catalog.data.gov
    • data.texas.gov
    Updated Jan 25, 2024
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    data.austintexas.gov (2024). County Map - StratMap_County_poly [Dataset]. https://catalog.data.gov/dataset/county-map-stratmap-county-poly
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    Dataset updated
    Jan 25, 2024
    Dataset provided by
    data.austintexas.gov
    Description

    Map of counties in Texas.

  11. d

    Data from: County-level maps of cropland surface water inundation measured...

    • catalog.data.gov
    • data.usgs.gov
    • +1more
    Updated Oct 1, 2025
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    U.S. Geological Survey (2025). County-level maps of cropland surface water inundation measured from Landsat and MODIS [Dataset]. https://catalog.data.gov/dataset/county-level-maps-of-cropland-surface-water-inundation-measured-from-landsat-and-modis
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    Dataset updated
    Oct 1, 2025
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Description

    This dataset represents a summary of potential cropland inundation for the state of California applying high-frequency surface water map composites derived from two satellite remote sensing platforms (Landsat and Moderate Resolution Imaging Spectroradiometer [MODIS]) with high-quality cropland maps generated by the California Department of Water Resources (DWR). Using Google Earth Engine, we examined inundation dynamics in California croplands from 2003 –2020 by intersecting monthly surface water maps (n=216 months) with mapped locations of precipitation amounts, rice, field, truck (which comprises truck, nursery, and berry crops), deciduous (deciduous fruits and nuts), citrus (citrus and subtropical), vineyards, and young perennial crops. Surface water maps were produced using the Dynamic Surface Water Extent (DSWE) model, in which satellite image pixels are classified into different levels of detection confidence. Our analysis focused on calculating the monthly occurrence of “high confidence” water from each satellite collection across eight cropland types and 58 counties. The resulting tabular data have been joined to a county GIS shapefile covering the state of California. The file includes attributes summarizing each crop contained within the county boundaries along with a summary of how much cropland intersects past locations of cropland inundation, the relative percentage of cropland inundated, and the frequency of crop inundation. These summaries were generated using both the Landsat and MODIS water inundation maps, and are presented separately in the data release.

  12. City and County Boundary Line Changes

    • catalog.ogopendata.com
    • data.ca.gov
    • +2more
    Updated May 10, 2025
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    OpenGov (2025). City and County Boundary Line Changes [Dataset]. https://catalog.ogopendata.com/dataset/city-and-county-boundary-line-changes
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    html, arcgis geoservices rest apiAvailable download formats
    Dataset updated
    May 10, 2025
    Dataset provided by
    California State Board of Equalizationhttp://www.boe.ca.gov/
    Authors
    OpenGov
    Description

    This map includes change areas for city and county boundaries filed in accordance with Government Code 54900. The initial dataset was first published on October 20, 2021, and was based on the State Board of Equalization's tax rate area boundaries. As of April 1, 2024, the maintenance of this dataset is provided by the California Department of Tax and Fee Administration for the purpose of determining sales and use tax jurisdictions. The boundaries are continuously being revised when areas of conflict are discovered between the original boundary provided by the California State Board of Equalization and the boundary made publicly available by local, state, and federal government. Some differences may occur between actual recorded boundaries and the boundaries used for sales and use tax purposes. The boundaries in this map are representations of taxing jurisdictions and should not be used to determine precise city or county boundary line locations.

    The data is updated within 10 business days of the CDTFA receiving a copy of the Board of Equalization's acknowledgement letter.

    BOE_CityAnx Data Dictionary: COFILE = county number - assessment roll year - file number (see note*); CHANGE = affected city, unincorporated county, or boundary correction; EFFECTIVE = date the change was effective by resolution or ordinance (see note*); RECEIVED = date the change was received at the BOE; ACKNOWLEDGED = date the BOE accepted the filing for inclusion into the tax rate area system; NOTES = additional clarifying information about the action.

    *Note: A COFILE number ending in "000" is a boundary correction and the effective date used is the date the map was corrected.

    BOE_CityCounty Data Dictionary: COUNTY = county name; CITY = city name or unincorporated territory; COPRI = county number followed by the 3-digit city primary number used in the Board of Equalization's 6-digit tax rate area numbering system (for the purpose of this map, unincorporated areas are assigned 000 to indicate that the area is not within a city).

  13. Census of Population and Housing, 2000 [United States]: 1998 Dress...

    • icpsr.umich.edu
    ascii
    Updated Jan 12, 2006
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    United States. Bureau of the Census (2006). Census of Population and Housing, 2000 [United States]: 1998 Dress Rehearsal, P.L. 94-171 Redistricting Data, Geographic Files for 11 Counties in South Carolina, Sacramento, California, and Menominee County, Wisconsin [Dataset]. http://doi.org/10.3886/ICPSR02913.v1
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    asciiAvailable download formats
    Dataset updated
    Jan 12, 2006
    Dataset provided by
    Inter-university Consortium for Political and Social Researchhttps://www.icpsr.umich.edu/web/pages/
    Authors
    United States. Bureau of the Census
    License

    https://www.icpsr.umich.edu/web/ICPSR/studies/2913/termshttps://www.icpsr.umich.edu/web/ICPSR/studies/2913/terms

    Time period covered
    1998
    Area covered
    Sacramento, South Carolina, Columbia, California, Wisconsin, South Carolina, United States
    Description

    The 1998 Dress Rehearsal was conducted as a prelude to the United States Census of Population and Housing, 2000, in the following locations: (1) Columbia, South Carolina, and surrounding areas, including the town of Irmo and the counties of Chester, Chesterfield, Darlington, Fairfield, Kershaw, Lancaster, Lee, Marlboro, Newberry, Richland, and Union, (2) Sacramento, California, and (3) Menominee County, Wisconsin, including the Menominee American Indian Reservation. This collection contains map files showing various levels of geography (in the form of Census Tract Outline Maps, Voting District/State Legislative District Outline Maps, and County Block Maps), TIGER/Line digital files, and Corner Point files for the Census 2000 Dress Rehearsal sites. The Corner Point data files contain the bounding latitude and longitude coordinates for each individual map sheet of the 1998 Dress Rehearsal Public Law (P.L.) 94-171 map products. These files include a sheet identifier, minimum and maximum longitude, minimum and maximum latitude, and the map scale (integer value) for each map sheet. The latitude and longitude coordinates are in decimal degrees and expressed as integer values with six implied decimal places. There is a separate Corner Point File for each of the three map types: County Block Map, Census Tract Outline Map, and Voting District/State Legislative District Outline Map. Each of the three map file types is provided in two formats: Portable Document Format (PDF), for viewing, and Hewlett-Packard Graphics Language (HP-GL) format, for plotting. The County Block Maps show the greatest detail and the most complete set of geographic information of all the maps. These large-scale maps depict the smallest geographic entities for which the Census Bureau presents data -- the census blocks -- by displaying the features that delineate them and the numbers that identify them. These maps show the boundaries, names, and codes for American Indian/Alaska Native areas, county subdivisions, places, census tracts, and, for this series, the geographic entities that the states delineated in Phase 2, Voting District Project, of the Redistricting Data Program. The HP-GL version of the County Block Maps is broken down into index maps and map sheets. The map sheets cover a small area, and the index maps are composed of multiple map sheets, showing the entire area. The intent of the County Block Map series is to provide a map for each county on the smallest possible number of map sheets at the maximum practical scale, dependent on the area size of the county and the density of the block pattern. The latter affects the display of block numbers and feature identifiers. The Census Tract Outline Maps show the boundaries and numbers of census tracts, and name the features underlying the boundaries. These maps also show the boundaries and names of counties, county subdivisions, and places. They identify census tracts in relation to governmental unit boundaries. The mapping unit is the county. These large-format maps are produced to support the P.L. 94-171 program and all other 1998 Dress Rehearsal data tabulations. The Voting District/State Legislative District Outline Maps show the boundaries and codes for voting districts as delineated by the states in Phase 2, Voting District Project, of the Redistricting Data Program. The features underlying the voting district boundaries are shown, as well as the names of these features. Additionally, for states that submit the information, these maps show the boundaries and codes for state legislative districts and their underlying features. These maps also show the boundaries of and names of American Indian/Alaska Native areas, counties, county subdivisions, and places. The scale of the district maps is optimized to keep the number of map sheets for each area to a minimum, but the scale and number of map sheets will vary by the area size of the county and the voting districts and state legislative districts delineated by the states. The Census 2000 Dress Rehearsal TIGER/Line Files consist of line segments representing physical features and governmental and statistical boundaries. The files contain information distributed over a series of record types for the spatial objects of a county. These TIGER/Line Files are an extract of selected geographic and cartographic information from the Census TIGER (Topological

  14. k

    County Boundaries

    • hub.kansasgis.org
    Updated Mar 16, 2017
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    Kansas State Government GIS (2017). County Boundaries [Dataset]. https://hub.kansasgis.org/datasets/county-boundaries-2
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    Dataset updated
    Mar 16, 2017
    Dataset authored and provided by
    Kansas State Government GIS
    Description

    Map of Kansas county boundaries.The full Kansas geospatial catalog is administered by the Kansas Data Access & Support Center (DASC) and can be found at the following URL: https://hub.kansasgis.org/

  15. M

    Status of Free and Open Public Geospatial Data from Minnesota Counties

    • gisdata.mn.gov
    • data.wu.ac.at
    fgdb, gpkg, html +3
    Updated Sep 12, 2025
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    Geospatial Information Office (2025). Status of Free and Open Public Geospatial Data from Minnesota Counties [Dataset]. https://gisdata.mn.gov/dataset/bdry-mn-county-open-data-status
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    printable_map, jpeg, fgdb, html, shp, gpkgAvailable download formats
    Dataset updated
    Sep 12, 2025
    Dataset provided by
    Geospatial Information Office
    Area covered
    Minnesota
    Description

    This map shows the free and open data status of county public geospatial (GIS) data across Minnesota. The accompanying data set can be used to make similar maps using GIS software.

    Counties shown in this dataset as having free and open public geospatial data (with or without a policy) are: Aitkin, Anoka, Becker, Beltrami, Benton, Big Stone, Carlton, Carver, Cass, Chippewa, Chisago, Clay, Clearwater, Cook, Crow Wing, Dakota, Douglas, Grant, Hennepin, Hubbard, Isanti, Itasca, Kittson, Koochiching, Lac qui Parle, Lake, Lyon, Marshall, McLeod, Meeker, Mille Lacs, Morrison, Mower, Norman, Olmsted, Otter Tail, Pipestone, Polk, Pope, Ramsey, Renville, Rice, Scott, Sherburne, St. Louis, Stearns, Steele, Stevens, Traverse, Wabasha, Waseca, Washington, Wilkin, Winona, Wright, and Yellow Medicine.

    To see if a county's data is distributed via the Minnesota Geospatial Commons, check the Commons organizations page: https://gisdata.mn.gov/organization

    To see if a county distributes data via its website, check the link(s) on the Minnesota County GIS Contacts webpage: https://www.mngeo.state.mn.us/county_contacts.html

  16. U

    GIS Data for Geologic Map of the Central Part of the Northern Park Range,...

    • data.usgs.gov
    • catalog.data.gov
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    Hunter Broeder; Sara Gonzalez; John Horton, GIS Data for Geologic Map of the Central Part of the Northern Park Range, Jackson and Routt Counties, Colorado [Dataset]. http://doi.org/10.5066/P14RN3ZD
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    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Authors
    Hunter Broeder; Sara Gonzalez; John Horton
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Time period covered
    May 30, 2025
    Area covered
    Routt County, Colorado
    Description

    This U.S. Geological Survey (USGS) data release provides a digital geospatial database for the geologic map of the central part of the northern Park Range, Jackson and Routt Counties, Colorado (Snyder, 1980). Attribute tables and geospatial features (points, lines, and polygons) conform to the Geologic Map Schema (USGS NCGMP, 2020) and represent the geologic map as published in USGS Miscellaneous Investigations Series Map I-1112. The 218,613-acre map area represents the geology at a publication scale of 1:48,000. References: Snyder, G.L., 1980, Geologic map of the central part of the northern Park Range, Jackson and Routt Counties, Colorado: U.S. Geological Survey, Miscellaneous Investigations Series Map I-1112, scale 1:48,000, https://doi.org/10.3133/i1112. U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, c ...

  17. n

    NCDOT County Boundaries

    • nconemap.gov
    • hub.arcgis.com
    Updated Nov 21, 2013
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    North Carolina Department of Transportation (2013). NCDOT County Boundaries [Dataset]. https://www.nconemap.gov/maps/NCDOT::ncdot-county-boundaries
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    Dataset updated
    Nov 21, 2013
    Dataset authored and provided by
    North Carolina Department of Transportation
    Area covered
    Description

    This service provides vector polygon dataset defining the official boundaries of the 100 counties within North Carolina as well as the boundaries between North Carolina and the states which border North Carolina.The North Carolina county polygon boundary service provides location information for North Carolina State and County Boundary lines derived from the best available survey and/or Geographic Information System (GIS) data. Sources for information are the North Carolina Geodetic Survey (NCGS), NC Department of Transportation (NCDOT), United States Geological Survey (USGS), and field surveys conducted by licensed surveyors in North Carolina and neighboring states that have been approved and recorded in their respective counties. Some boundaries cannot be surveyed in cases where boundaries are coincident with river centers. North Carolina Geodetic Survey assists counties on a cooperative basis (NC General Statute 153A-18) in defining and monumenting the location of uncertain or disputed boundaries as established by law. Some counties have completed boundary surveys for at least a portion of their county boundary. However, the majority of county boundaries have not been surveyed and are represented by the best currently available data from GIS sources, including NCDOT county maps (which originally came from the USGS) and updated county parcel maps.This data is updated annually, first quarter (usually in February).MetadataThe metadata for the contained layer of the NCDOT County Boundaries Service is available through the following link:County Boundaries PolygonPoint of Contact North Carolina Department of Information Technology -Transportation, GIS UnitGIS Data and Services ConsultantContact information:gishelp@ncdot.govCentury Center – Building B1020 Birch Ridge DriveRaleigh, NC 27610Hours of service: 9:00am - 5:00pm Monday – FridayContact instructions: Please send an email with any issues, questions, or comments regarding the County Boundaries data. If it is an immediate need, please indicate as such in the subject line in an email.NCDOT GIS Unit GO! NC Product Team

  18. u

    National Soil Information System (NASIS) data base

    • gstore.unm.edu
    zip
    Updated Jun 9, 2014
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    Earth Data Analysis Center (2014). National Soil Information System (NASIS) data base [Dataset]. https://gstore.unm.edu/apps/rgis/datasets/ef2f276c-ce26-4ebc-98a1-1393dc5dcf4e/metadata/FGDC-STD-001-1998.html
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    zip(14)Available download formats
    Dataset updated
    Jun 9, 2014
    Dataset provided by
    Earth Data Analysis Center
    Time period covered
    Dec 12, 2005
    Area covered
    New Mexico, West Bounding Coordinate -109.046 East Bounding Coordinate -108.249 North Bounding Coordinate 37.327 South Bounding Coordinate 36.85
    Description

    This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized maps using remotely sensed and other information. This data set consists of georeferenced digital map data and computerized attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. A special soil features layer (point and line features) is optional. This layer displays the location of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.

  19. n

    North Carolina State and County Boundary Polygons

    • nconemap.gov
    • nc-risk-management-open-data-ncem-gis.hub.arcgis.com
    • +1more
    Updated Jun 11, 2020
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    State of North Carolina - Emergency Management (2020). North Carolina State and County Boundary Polygons [Dataset]. https://www.nconemap.gov/datasets/NCEM-GIS::north-carolina-state-and-county-boundary-polygons
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    Dataset updated
    Jun 11, 2020
    Dataset authored and provided by
    State of North Carolina - Emergency Management
    License

    MIT Licensehttps://opensource.org/licenses/MIT
    License information was derived automatically

    Area covered
    Description

    The North Carolina State and County Boundary vector polygon data provides location information for North Carolina State and County Boundary lines derived from the best available survey and/or Geographic Information System (GIS) data. Sources for information are the North Carolina Geodetic Survey (NCGS), NC Department of Transportation (NCDOT), United States Geological Survey (USGS), and field surveys conducted by licensed surveyors in North Carolina and neighboring states that have been approved and recorded in their respective counties. North Carolina Geodetic Survey assists counties on a cooperative basis (NC General Statute 153A-18) in defining and monumenting the location of uncertain or disputed boundaries as established by law. Some counties have completed boundary surveys for at least a portion of their county boundary. However, the majority of county boundaries have not been surveyed and are represented by the best currently available data from GIS sources, including NCDOT county maps (which originally came from the USGS) and updated county parcel maps.

  20. California Counties

    • data.ca.gov
    • gis.data.ca.gov
    • +1more
    Updated Mar 6, 2025
    + more versions
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    California Department of Education (2025). California Counties [Dataset]. https://data.ca.gov/dataset/california-counties
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    gdb, zip, csv, html, gpkg, arcgis geoservices rest api, geojson, xlsx, txt, kmlAvailable download formats
    Dataset updated
    Mar 6, 2025
    Dataset authored and provided by
    California Department of Educationhttps://www.cde.ca.gov/
    Area covered
    California
    Description

    This layer contains the boundaries for California’s 58 counties. County features are derived from the US Census Bureau's 2023 TIGER/Line database and have been clipped to the coastal boundary line and designed to overlay with the California Department of Education’s (CDE) educational boundary layers.

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Colorado Department of Public Health and Environment (2016). Colorado County Boundaries [Dataset]. https://data-cdphe.opendata.arcgis.com/datasets/colorado-county-boundaries

Colorado County Boundaries

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8 scholarly articles cite this dataset (View in Google Scholar)
Dataset updated
Apr 2, 2016
Dataset authored and provided by
Colorado Department of Public Health and Environment
Area covered
Description

This feature class contains county boundaries for all 64 Colorado counties and 2010 US Census attributes data describing the population within each county.

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