100+ datasets found
  1. California County Boundaries

    • gis.data.ca.gov
    • data.cnra.ca.gov
    • +6more
    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.

  2. n

    NCDOT County Boundaries

    • nconemap.gov
    • hub.arcgis.com
    • +1more
    Updated Nov 20, 2013
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    North Carolina Department of Transportation (2013). NCDOT County Boundaries [Dataset]. https://www.nconemap.gov/datasets/NCDOT::ncdot-county-boundaries
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    Dataset updated
    Nov 20, 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

  3. County Boundaries 24K

    • data-wi-dnr.opendata.arcgis.com
    • hub.arcgis.com
    Updated Jan 4, 2017
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    Wisconsin Department of Natural Resources (2017). County Boundaries 24K [Dataset]. https://data-wi-dnr.opendata.arcgis.com/datasets/county-boundaries-24k
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    Dataset updated
    Jan 4, 2017
    Dataset authored and provided by
    Wisconsin Department of Natural Resourceshttp://dnr.wi.gov/
    Area covered
    Description

    This data set provides a generalized outline of the 72 counties in Wisconsin. The data is derived from 1:24,000-scale sources.

  4. d

    Northeast County Polygon

    • catalog.data.gov
    • data.ct.gov
    • +5more
    Updated Feb 12, 2025
    + more versions
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    Department of Energy & Environmental Protection (2025). Northeast County Polygon [Dataset]. https://catalog.data.gov/dataset/northeast-county-polygon-8541d
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    Dataset updated
    Feb 12, 2025
    Dataset provided by
    Department of Energy & 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. k

    County Boundaries

    • hub.kansasgis.org
    Updated Mar 16, 2017
    + more versions
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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/

  6. o

    Data from: US County Boundaries

    • public.opendatasoft.com
    • ods.backoffice.smartidf.services
    csv, excel, geojson +1
    Updated Jun 27, 2017
    + more versions
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    (2017). US County Boundaries [Dataset]. https://public.opendatasoft.com/explore/dataset/us-county-boundaries/
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    json, csv, excel, geojsonAvailable download formats
    Dataset updated
    Jun 27, 2017
    License

    https://en.wikipedia.org/wiki/Public_domainhttps://en.wikipedia.org/wiki/Public_domain

    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 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 as of January 1, 2017, primarily as reported through the Census Bureau's Boundary and Annexation Survey (BAS).

  7. d

    Lake County Maps Online

    • datasets.ai
    • s.cnmilf.com
    • +1more
    21, 3
    Updated Aug 26, 2024
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    Lake County, Illinois (2024). Lake County Maps Online [Dataset]. https://datasets.ai/datasets/lake-county-maps-online-8fba8
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    3, 21Available download formats
    Dataset updated
    Aug 26, 2024
    Dataset authored and provided by
    Lake County, Illinois
    Area covered
    Lake County
    Description

    Lake County's most comprehensive interactive web mapping application and GIS data viewer. View data, run analysis tools, and create PDF documents all inside Maps Online!

  8. City and County Boundary Line Changes

    • gis.data.ca.gov
    • data.ca.gov
    • +3more
    Updated Mar 6, 2015
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    California Department of Tax and Fee Administration (2015). City and County Boundary Line Changes [Dataset]. https://gis.data.ca.gov/maps/93f73ae0070240fca9a4d3826ddb83cd
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    Dataset updated
    Mar 6, 2015
    Dataset authored and provided by
    California Department of Tax and Fee Administrationhttp://cdtfa.ca.gov/
    License

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

    Area covered
    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).

  9. d

    CT Vicinity County Lines

    • catalog.data.gov
    • data.ct.gov
    • +7more
    Updated Feb 12, 2025
    + more versions
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    Department of Energy & Environmental Protection (2025). CT Vicinity County Lines [Dataset]. https://catalog.data.gov/dataset/ct-vicinity-county-lines-569ea
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    Dataset updated
    Feb 12, 2025
    Dataset provided by
    Department of Energy & Environmental Protection
    Area covered
    Connecticut
    Description

    Connecticut and Vicinity 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.)

  10. d

    Lake County Boundary

    • catalog.data.gov
    • data-lakecountyil.opendata.arcgis.com
    • +2more
    Updated Sep 7, 2025
    + more versions
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    Lake County Illinois GIS (2025). Lake County Boundary [Dataset]. https://catalog.data.gov/dataset/lake-county-boundary-5e5b4
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    Dataset updated
    Sep 7, 2025
    Dataset provided by
    Lake County Illinois GIS
    Description

    Download In State Plane Projection Here. This is our working version of the Lake County boundary. Although technically the county's eastern border extends eastward into Lake Michigan to the state line where Illinois meets Michigan, we routinely use the Lake Michigan shoreline as our eastern boundary for mapping purposes. The north, west and south boundaries are based on a compilation of survey data which aligns well, but not perfectly, with the border as mapped by neighboring counties and the State of Wisconsin, which forms the northern boundary of the county. Update Frequency: This dataset is updated on a weekly basis.

  11. i

    Iowa County Boundaries

    • geodata.iowa.gov
    • hub.arcgis.com
    Updated Nov 7, 2015
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    State of Iowa (2015). Iowa County Boundaries [Dataset]. https://geodata.iowa.gov/maps/iowa::iowa-county-boundaries
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    Dataset updated
    Nov 7, 2015
    Dataset authored and provided by
    State of Iowa
    Area covered
    Description

    Published to allow joining of spreadsheet data to county geometry in ESRI Maps for Office or Map Analysis Tools, contains Iowa DOM County Code (1-99) as a small integer, Census County FIPS as a both an string and integer. This data was originally created by the Iowa DNR and digitized from USGS 7.5' topographic maps.Click on the data tab above to see an example of expected data. OCIO has a tutorial on how to join your spreadsheet to this Feature layer to create a new feature layer with your county based information. Please contact patrick.wilke-brown@iowa.gov.

  12. i

    County Boundaries of Indiana Current

    • indianamap.org
    • hub.arcgis.com
    Updated Sep 8, 2022
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    IndianaMap (2022). County Boundaries of Indiana Current [Dataset]. https://www.indianamap.org/datasets/40794ef5f7244d55b4df68a2a10eff34
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    Dataset updated
    Sep 8, 2022
    Dataset authored and provided by
    IndianaMap
    Area covered
    Indiana
    Description

    These county boundaries were compiled from county boundary lines or parcels submitted by each county to the Geographic Information Office in 2021. Each county's south and east lines were preserved when possible, in accordance with surveying convention. Specific sources used for each line segment can be found in the attribute table of the service https://gisdata.in.gov/server/rest/services/Hosted/Proposed_Boundary_Line/FeatureServer/0. To compare source data, visit the web application at https://gisdata.in.gov/portal/apps/webappviewer/index.html?id=ced4032e27a44731ab5ca42e7127d5fd. County attributes were provided by the Indiana Department of Environmental Management.

  13. Colorado County Boundaries

    • data-cdphe.opendata.arcgis.com
    • hub.arcgis.com
    • +1more
    Updated Apr 2, 2016
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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 Environmenthttps://cdphe.colorado.gov/
    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.

  14. T

    Boundaries: State of Texas Counties

    • datahub.austintexas.gov
    • data.austintexas.gov
    • +2more
    Updated Sep 1, 2025
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    US Census (2025). Boundaries: State of Texas Counties [Dataset]. https://datahub.austintexas.gov/Locations-and-Maps/Boundaries-State-of-Texas-Counties/tnsq-nquk
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    csv, application/rssxml, application/geo+json, xml, tsv, application/rdfxml, kmz, kmlAvailable download formats
    Dataset updated
    Sep 1, 2025
    Dataset authored and provided by
    US Census
    License

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

    Area covered
    Texas
    Description

    Cartographic Boundary Map provided the State of Texas Open Data Portal here: https://data.texas.gov/dataset/Texas-Counties-Cartographic-Boundary-Map/sw7f-2kkd/about_data

    Terms of Use This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. It does not represent an on-the-ground survey and represents only the approximate relative location of property boundaries. This product has been provided by the City of Austin via the US Census Bureau for the sole purpose of geographic reference. No warranty is made by the City of Austin regarding specific accuracy or completeness.

  15. a

    North Carolina State and County Boundary Polygons

    • nc-risk-management-open-data-ncem-gis.hub.arcgis.com
    • nconemap.gov
    • +2more
    Updated Jun 11, 2020
    + more versions
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    State of North Carolina - Emergency Management (2020). North Carolina State and County Boundary Polygons [Dataset]. https://nc-risk-management-open-data-ncem-gis.hub.arcgis.com/datasets/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.

  16. d

    Louisville Metro KY County Boundaries

    • catalog.data.gov
    • data.louisvilleky.gov
    • +2more
    Updated Jul 30, 2025
    + more versions
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    Louisville/Jefferson County Information Consortium (2025). Louisville Metro KY County Boundaries [Dataset]. https://catalog.data.gov/dataset/louisville-metro-ky-county-boundaries
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    Dataset updated
    Jul 30, 2025
    Dataset provided by
    Louisville/Jefferson County Information Consortium
    Area covered
    Kentucky, Louisville
    Description

    It includes the following counties: Bullitt County, Hardin County, Jefferson County, Clark County, Oldham County, Henry County, Meade County, Harrison County, Shelby County, Spencer County, Trimble County, Floyd County. This area is also the extent of our base map caches.

  17. c

    City and County Boundary Changes by Roll Year

    • gis.data.ca.gov
    • cdtfa.hub.arcgis.com
    Updated Jul 1, 2022
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    California Department of Tax and Fee Administration (2022). City and County Boundary Changes by Roll Year [Dataset]. https://gis.data.ca.gov/maps/cd465bc4bded40b399a3035e9888413c
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    Dataset updated
    Jul 1, 2022
    Dataset authored and provided by
    California Department of Tax and Fee Administration
    License

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

    Area covered
    Description

    This map is a compilation of the final set of city and county boundary changes filed with the California State Board of Equalization in accordance with Government Code 54900 for each assessment roll year beginning with the 2021 roll year. Boundary corrections are included in the dataset according to information provided by the city, county, and/or LAFCO. These corrections may or may not have been corrected in the Board of Equalization's records. Each layer is considered FINAL as of June in the year noted by the layer name. The boundaries from 2021 through 2025 are based on the California State Board of Equalization's tax rate area maps and may not align with other sources. For the latest data, please view the "City and County Boundary Line Changes" map.As of April 1, 2024, the maintenance of this map is provided by the California Department of Tax and Fee Administration (CDTFA) for sales and use tax purposes.

  18. K

    El Paso County, Colorado County Boundary

    • koordinates.com
    csv, dwg, geodatabase +6
    Updated May 16, 2019
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    El Paso County, Colorado (2019). El Paso County, Colorado County Boundary [Dataset]. https://koordinates.com/layer/102046-el-paso-county-colorado-county-boundary/
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    shapefile, geodatabase, geopackage / sqlite, mapinfo tab, pdf, kml, mapinfo mif, dwg, csvAvailable download formats
    Dataset updated
    May 16, 2019
    Dataset authored and provided by
    El Paso County, Colorado
    Area covered
    Description

    Polygon vector map data covering county boundaries for El Paso County, Colorado County containing 1 feature.

    Boundary GIS (Geographic Information System) data is spatial information that delineates the geographic boundaries of specific geographic features. This data typically includes polygons representing the outlines of these features, along with attributes such as names, codes, and other relevant information.

    Boundary GIS data is used for a variety of purposes across multiple industries, including urban planning, environmental management, public health, transportation, and business analysis.

    Available for viewing and sharing as a map in a Koordinates map viewer. This data is also available for export to DWG for CAD, PDF, KML, CSV, and GIS data formats, including Shapefile, MapInfo, and Geodatabase.

  19. K

    Riverside County, CA County Boundaries

    • koordinates.com
    csv, dwg, geodatabase +6
    Updated Dec 13, 2022
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    Riverside County, California (2022). Riverside County, CA County Boundaries [Dataset]. https://koordinates.com/layer/111384-riverside-county-ca-county-boundaries/
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    pdf, dwg, csv, mapinfo tab, shapefile, mapinfo mif, geopackage / sqlite, kml, geodatabaseAvailable download formats
    Dataset updated
    Dec 13, 2022
    Dataset authored and provided by
    Riverside County, California
    Area covered
    Description

    Geospatial data about Riverside County, CA County Boundaries. Export to CAD, GIS, PDF, CSV and access via API.

  20. Texas County Boundaries

    • gis-txdot.opendata.arcgis.com
    • hub.arcgis.com
    • +1more
    Updated Aug 12, 2016
    + more versions
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    Texas Department of Transportation (2016). Texas County Boundaries [Dataset]. https://gis-txdot.opendata.arcgis.com/datasets/texas-county-boundaries
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    Dataset updated
    Aug 12, 2016
    Dataset authored and provided by
    Texas Department of Transportationhttp://txdot.gov/
    Area covered
    Description

    This dataset was created by TxDOT for internal purposes. TxDOT is not the authority for county boundary data for the state. These features were digitized by TxDOT from georeferenced USGS topo maps to enable the classification of roadway attributes for the purposes of satisfying federal and state reporting requirements, and to serve as a base layer for TxDOT's cartographic products. This version utilizes a generalized boundary along the coast, which is sometimes necessary for analysis in which it is important to encompass segments of roadways that travel over water. Roadways on bridges or causeways that span intracoastal waterways are not covered by detailed polygons that precisely follow the coastline, therefore a generalized boundary is needed for some types of analysis where it is important to preserve such relationships.Use at your own risk. Update Frequency: As NeededSource: Texas General Land OfficeSecurity Level: PublicOwned by TxDOT: FalseRelated LinksData Dictionary PDF [Generated 2025/03/14]

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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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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.

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