25 datasets found
  1. d

    Texas-Harvey Basemap - Addresses and Boundaries

    • search.dataone.org
    • hydroshare.org
    • +1more
    Updated Dec 30, 2023
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    David Arctur; David Maidment (2023). Texas-Harvey Basemap - Addresses and Boundaries [Dataset]. http://doi.org/10.4211/hs.3e251d7d70884abd928d7023e050cbdc
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    Dataset updated
    Dec 30, 2023
    Dataset provided by
    Hydroshare
    Authors
    David Arctur; David Maidment
    Area covered
    Description

    This site provides access to download an ArcGIS geodatabase or shapefiles for the 2017 Texas Address Database, compiled by the Center for Water and the Environment (CWE) at the University of Texas at Austin, with guidance and funding from the Texas Division of Emergency Management (TDEM). These addresses are used by TDEM to help anticipate potential impacts of serious weather and flooding events statewide. This is part of the Texas Water Model (TWM), a project to adapt the NOAA National Water Model [1] for use in Texas public safety. This database was compiled over the period from June 2016 to December 2017. A number of gaps remain (towns and cities missing address points), see Address Database Gaps spreadsheet below [4]. Additional datasets include administrative boundaries for Texas counties (including Federal and State disaster-declarations), Councils of Government, and Texas Dept of Public Safety Regions. An Esri ArcGIS Story Map [5] web app provides an interactive map-based portal to explore and access these data layers for download.

    The address points in this database include their "height above nearest drainage" (HAND) as attributes in meters and feet. HAND is an elevation model developed through processing by the TauDEM method [2], built on USGS National Elevation Data (NED) with 10m horizontal resolution. The HAND elevation data and 10m NED for the continental United States are available for download from the Texas Advanced Computational Center (TACC) [3].

    The complete statewide dataset contains about 9.28 million address points representing a population of about 28 million. The total file size is about 5GB in shapefile format. For better download performance, the shapefile version of this data is divided into 5 regions, based on groupings of major watersheds identified by their hydrologic unit codes (HUC). These are zipped by region, with no zipfile greater than 120mb: - North Tx: HUC1108-1114 (0.52 million address points) - DFW-East Tx: HUC1201-1203 (3.06 million address points) - Houston-SE Tx: HUC1204 (1.84 million address points) - Central Tx: HUC1205-1210 (2.96 million address points) - Rio Grande-SW Tx: HUC2111-1309 (2.96 million address points)

    Additional state and county boundaries are included (Louisiana, Mississippi, Arkansas), as well as disaster-declaration status.

    Compilation notes: The Texas Commission for State Emergency Communications (CSEC) provided the first 3 million address points received, in a single batch representing 213 of Texas' 254 counties. The remaining 41 counties were primarily urban areas comprising about 6.28 million addresses (totaling about 9.28 million addresses statewide). We reached the GIS data providers for these areas (see Contributors list below) through these emergency communications networks: Texas 9-1-1 Alliance, the Texas Emergency GIS Response Team (EGRT), and the Texas GIS 9-1-1 User Group. The address data was typically organized in groupings of counties called Councils of Governments (COG) or Regional Planning Commissions (RPC) or Development Councils (DC). Every county in Texas belongs to a COG, RPC or DC. We reconciled all counties' addresses to a common, very simple schema, and merged into a single geodatabase.

    November 2023 updates: In 2019, TNRIS took over maintenance of the Texas Address Database, which is now a StratMap program updated annually [6]. In 2023, TNRIS also changed its name to the Texas Geographic Information Office (TxGIO). The datasets available for download below are not being updated, but are current as of the time of Hurricane Harvey.

    References: [1] NOAA National Water Model [https://water.noaa.gov/map] [2] TauDEM Downloads [https://hydrology.usu.edu/taudem/taudem5/downloads.html] [3] NFIE Continental Flood Inundation Mapping - Data Repository [https://web.corral.tacc.utexas.edu/nfiedata/] [4] Address Database Gaps, Dec 2017 (download spreadsheet below) [5] Texas Address and Base Layers Story Map [https://www.hydroshare.org/resource/6d5c7dbe0762413fbe6d7a39e4ba1986/] [6] TNRIS/TxGIO StratMap Address Points data downloads [https://tnris.org/stratmap/address-points/]

  2. O

    Texas Counties Centroid Map

    • data.texas.gov
    • s.cnmilf.com
    • +1more
    Updated Apr 8, 2021
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    (2021). Texas Counties Centroid Map [Dataset]. https://data.texas.gov/dataset/Texas-Counties-Centroid-Map/ups3-9e8m
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    tsv, xml, csv, application/rdfxml, application/rssxml, application/geo+json, kmz, kmlAvailable download formats
    Dataset updated
    Apr 8, 2021
    Area covered
    Texas
    Description

    Texas county centroid latitude and longitude map data.

  3. Texas County Boundaries (line)

    • gis-txdot.opendata.arcgis.com
    • hub.arcgis.com
    • +1more
    Updated Jul 19, 2016
    + more versions
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    Texas Department of Transportation (2016). Texas County Boundaries (line) [Dataset]. https://gis-txdot.opendata.arcgis.com/datasets/texas-county-boundaries-line
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    Dataset updated
    Jul 19, 2016
    Dataset authored and provided by
    Texas Department of Transportationhttp://txdot.gov/
    Area covered
    Description

    This dataset was created by the Transportation Planning and Programming (TPP) Division of the Texas Department of Transportation (TxDOT) for planning and asset inventory purposes, as well as for visualization and general mapping. County boundaries were digitized by TxDOT using USGS quad maps, and converted to line features using the Feature to Line tool. This dataset depicts a generalized coastline.Update Frequency: As NeededSource: Texas General Land OfficeSecurity Level: PublicOwned by TxDOT: FalseRelated LinksData Dictionary PDF [Generated 2025/03/14]

  4. McLennan-County-Texas (Company) - Reverse Whois Lookup

    • whoisdatacenter.com
    csv
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    AllHeart Web Inc, McLennan-County-Texas (Company) - Reverse Whois Lookup [Dataset]. https://whoisdatacenter.com/company/McLennan-County-Texas/
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    csvAvailable download formats
    Dataset provided by
    AllHeart Web
    Authors
    AllHeart Web Inc
    License

    https://whoisdatacenter.com/terms-of-use/https://whoisdatacenter.com/terms-of-use/

    Time period covered
    Mar 15, 1985 - Jul 13, 2025
    Area covered
    McLennan County, Texas
    Description

    Uncover historical ownership history and changes over time by performing a reverse Whois lookup for the company McLennan-County-Texas.

  5. O

    Search by Address

    • data.texas.gov
    application/rdfxml +5
    Updated Jul 12, 2025
    + more versions
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    Texas Comptroller of Public Accounts (2025). Search by Address [Dataset]. https://data.texas.gov/Government-and-Taxes/Search-by-Address/x2a4-tjqq
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    tsv, csv, json, xml, application/rdfxml, application/rssxmlAvailable download formats
    Dataset updated
    Jul 12, 2025
    Authors
    Texas Comptroller of Public Accounts
    License

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

    Description

    This file contains a list of taxpayers who hold an active sales tax permit under Tax Code Chapter 151, Subchapter F. The file includes taxpayer and outlet information.

    See https://comptroller.texas.gov/about/policies/privacy.php for more information on our agency’s privacy and security policies

  6. w

    Cherokee-County-Texas (Company) - Reverse Whois Lookup

    • whoisdatacenter.com
    csv
    Updated Jun 22, 2017
    + more versions
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    AllHeart Web Inc (2017). Cherokee-County-Texas (Company) - Reverse Whois Lookup [Dataset]. https://whoisdatacenter.com/company/Cherokee-County-Texas/
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    csvAvailable download formats
    Dataset updated
    Jun 22, 2017
    Dataset authored and provided by
    AllHeart Web Inc
    License

    https://whoisdatacenter.com/terms-of-use/https://whoisdatacenter.com/terms-of-use/

    Time period covered
    Mar 15, 1985 - May 31, 2025
    Area covered
    Cherokee County, Texas
    Description

    Uncover historical ownership history and changes over time by performing a reverse Whois lookup for the company Cherokee-County-Texas.

  7. d

    Data from: Helicopter electromagnetic and magnetic survey data and maps,...

    • catalog.data.gov
    • data.usgs.gov
    • +4more
    Updated Jul 6, 2024
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    U.S. Geological Survey (2024). Helicopter electromagnetic and magnetic survey data and maps, northern Bexar County, Texas [Dataset]. https://catalog.data.gov/dataset/helicopter-electromagnetic-and-magnetic-survey-data-and-maps-northern-bexar-county-texas
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    Dataset updated
    Jul 6, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Bexar County, Texas
    Description

    Flight-line data release for a helicopter electromagnetic (HEM) and magnetic geophysical survey flown in early December 2003, in Northern Bexar County, Texas. The U.S. Geological Survey (USGS) contracted the survey to Fugro Airborne of Toronto, Canada. Data include coordinates in UTM zone 14 meters, longitude and latitude WGS84, and latitude and longitude (degrees, minutes, and decimal seconds) NAD27.

  8. Throckmorton-County-Texas (Company) - Reverse Whois Lookup

    • whoisdatacenter.com
    csv
    Updated Jun 3, 2023
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    AllHeart Web Inc (2023). Throckmorton-County-Texas (Company) - Reverse Whois Lookup [Dataset]. https://whoisdatacenter.com/company/Throckmorton-County-Texas
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    csvAvailable download formats
    Dataset updated
    Jun 3, 2023
    Dataset provided by
    AllHeart Web
    Authors
    AllHeart Web Inc
    License

    https://whoisdatacenter.com/terms-of-use/https://whoisdatacenter.com/terms-of-use/

    Time period covered
    Mar 15, 1985 - Jul 14, 2025
    Area covered
    Throckmorton County, Texas
    Description

    Uncover historical ownership history and changes over time by performing a reverse Whois lookup for the company Throckmorton-County-Texas.

  9. TLIT boundary

    • hub.arcgis.com
    • gis-fws.opendata.arcgis.com
    Updated Aug 23, 2024
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    U.S. Fish & Wildlife Service (2024). TLIT boundary [Dataset]. https://hub.arcgis.com/datasets/114b6abfcb894fc9b8c53656219fb8fb
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    Dataset updated
    Aug 23, 2024
    Dataset provided by
    U.S. Fish and Wildlife Servicehttp://www.fws.gov/
    Authors
    U.S. Fish & Wildlife Service
    Area covered
    Description

    FOR non-AGOL ACCOUNT HOLDERS, DOWNLOAD THIS GEOSPATIAL DATA HERE: https://gis-fws.opendata.arcgis.com/search?tags=lmvjvTexas Longleaf Team is a group of individuals, organizations and agencies that share a passion for the longleaf pine. Together, we work to restore longleaf pine ecosystems on private and public forestlands in the state of Texas. The Texas Longleaf Taskforce was created in 2010 to promote the restoration of Longleaf pine on private and public forestlands in the state of Texas. The Taskforce started as a broad stakeholder group of private landowners, state and federal agencies, and industry members. It included non-profit organizations such as The Nature Conservancy, Texas Forestry Association, and the National Wild Turkey Federation and now has over 250 participants. The TLT mission is to promote the maintenance and restoration of the longleaf pine ecosystem on private and public forestlands, including its cultural and economic values, through a collaborative network of diverse stakeholders and working groups. Find and connect interested land owners to funding and assistance programs for longleaf. The administrative planning boundary for the TLT consists of the East Texas counties that align generally with the historic range of Longleaf pine (Pinus palustris) in the state.With regards to TLT's relationship to the Lower Mississippi Valley Joint Venture (LMVJV) partnership, since 2021 the LMVJV considers and functions as if the TLT network, partnership and focus area all are a Conservation Delivery Network (CDN) partnership of the LMVJV.

  10. H

    Inundation Mapping, Harris County, Texas

    • hydroshare.org
    zip
    Updated Dec 8, 2018
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    Julian Plough (2018). Inundation Mapping, Harris County, Texas [Dataset]. https://www.hydroshare.org/resource/8933c8b5ed9a4e8db8f6832ec14d3b47
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    zip(13.0 MB)Available download formats
    Dataset updated
    Dec 8, 2018
    Dataset provided by
    HydroShare
    Authors
    Julian Plough
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Harris County, Texas
    Description

    This project will take USGS gauge height readings and map corresponding inundation areas

  11. Registered Vehicles by County

    • data.texas.gov
    • datasets.ai
    • +1more
    application/rdfxml +5
    Updated May 4, 2022
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    Texas Department of Motor Vehicles (2022). Registered Vehicles by County [Dataset]. https://data.texas.gov/dataset/Registered-Vehicles-by-County/j5fk-64au
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    csv, xml, tsv, application/rssxml, application/rdfxml, jsonAvailable download formats
    Dataset updated
    May 4, 2022
    Dataset authored and provided by
    Texas Department of Motor Vehicles
    Description

    Total vehicle registration counts per month by county

  12. K

    Houston, Texas Subdivisions

    • koordinates.com
    csv, dwg, geodatabase +6
    + more versions
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    City of Houston, Texas, Houston, Texas Subdivisions [Dataset]. https://koordinates.com/layer/32290-houston-texas-subdivisions/
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    kml, mapinfo tab, geopackage / sqlite, pdf, mapinfo mif, csv, dwg, geodatabase, shapefileAvailable download formats
    Dataset authored and provided by
    City of Houston, Texas
    Area covered
    Description

    Geospatial data about Houston, Texas Subdivisions. Export to CAD, GIS, PDF, CSV and access via API.

  13. Republican-Party-of-Burleson-County-Texas (Company) - Reverse Whois Lookup

    • whoisdatacenter.com
    csv
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    AllHeart Web Inc, Republican-Party-of-Burleson-County-Texas (Company) - Reverse Whois Lookup [Dataset]. https://whoisdatacenter.com/company/Republican-Party-of-Burleson-County-Texas/
    Explore at:
    csvAvailable download formats
    Dataset provided by
    AllHeart Web
    Authors
    AllHeart Web Inc
    License

    https://whoisdatacenter.com/terms-of-use/https://whoisdatacenter.com/terms-of-use/

    Time period covered
    Mar 15, 1985 - Jul 14, 2025
    Area covered
    Burleson County, Texas
    Description

    Uncover historical ownership history and changes over time by performing a reverse Whois lookup for the company Republican-Party-of-Burleson-County-Texas.

  14. K

    Collin County, Texas Precincts

    • koordinates.com
    csv, dwg, geodatabase +6
    + more versions
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    Collin County, Texas, Collin County, Texas Precincts [Dataset]. https://koordinates.com/layer/18784-collin-county-texas-precincts/
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    csv, geopackage / sqlite, kml, mapinfo mif, geodatabase, shapefile, pdf, dwg, mapinfo tabAvailable download formats
    Dataset authored and provided by
    Collin County, Texas
    Area covered
    Description

    This layer is a component of IdentifyParcels.

  15. d

    Texas Basemap - Lidar Elevation Data (DEM)

    • search.dataone.org
    • hydroshare.org
    • +1more
    Updated Dec 30, 2023
    + more versions
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    Texas Natural Resources Information System (TNRIS); Texas Geographic Information Office (TxGIO) (2023). Texas Basemap - Lidar Elevation Data (DEM) [Dataset]. http://doi.org/10.4211/hs.af6ae321e2ad40a1bc6d0b695370fbfc
    Explore at:
    Dataset updated
    Dec 30, 2023
    Dataset provided by
    Hydroshare
    Authors
    Texas Natural Resources Information System (TNRIS); Texas Geographic Information Office (TxGIO)
    Area covered
    Texas
    Description

    This resource contains Lidar-DEM collection status shapefiles from the Texas Natural Resources Information System (TNRIS) [http://tnris.org]. November 2023 updates: this year, TNRIS changed its name to Texas Geographic Information Office (TxGIO). The domain name hasn't changed yet, but the data hub is continually evolving. See [1], [2] for current downloadable data.

    For purposes of Hurricane Harvey studies, the 1-m DEM for Harris County (2008) has also been uploaded here as a set of 4 zipfiles containing the DEM in tiff files. See [1] for a link to the current elevation status map and downloadable DEMs.
    Project name: H-GAC 2008 1m Datasets: 1m Point Cloud, 1M Hydro-Enforced DEM, 3D Breaklines, 1ft and 5ft Contours Points per sq meter: 1 Total area: 3678.56 sq miles Source: Houston-Galveston Area Council (H-GAC) Acquired by: Merrick, QA/QC: Merrick Catalog: houston-galveston-area-council-h-gac-2008-lidar

    References: [1] TNRIS/TxGIO StratMap elevation data [https://tnris.org/stratmap/elevation-lidar/] [2] TNRIS/TxGIO DataHub [https://data.tnris.org/]

  16. K

    Houston, Texas City Limits

    • koordinates.com
    csv, dwg, geodatabase +6
    Updated Feb 29, 2024
    + more versions
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    City of Houston, Texas (2024). Houston, Texas City Limits [Dataset]. https://koordinates.com/layer/13099-houston-texas-city-limits/
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    mapinfo mif, pdf, geodatabase, shapefile, kml, geopackage / sqlite, mapinfo tab, dwg, csvAvailable download formats
    Dataset updated
    Feb 29, 2024
    Dataset authored and provided by
    City of Houston, Texas
    Area covered
    Description

    Vector polygon map data of city limits from Houston, Texas containing 731 features.

    City limits GIS (Geographic Information System) data provides valuable information about the boundaries of a city, which is crucial for various planning and decision-making processes. Urban planners and government officials use this data to understand the extent of their jurisdiction and to make informed decisions regarding zoning, land use, and infrastructure development within the city limits.

    By overlaying city limits GIS data with other layers such as population density, land parcels, and environmental features, planners can analyze spatial patterns and identify areas for growth, conservation, or redevelopment. This data also aids in emergency management by defining the areas of responsibility for different emergency services, helping to streamline response efforts during crises..

    This city limits data is 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.

  17. a

    Plat Maps and Land Records

    • gis-bexar.opendata.arcgis.com
    • geoportal-mpo.opendata.arcgis.com
    Updated Mar 6, 2024
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    Bexar County (2024). Plat Maps and Land Records [Dataset]. https://gis-bexar.opendata.arcgis.com/documents/b4b6dfe71a5044ae9413cb7c2ee977b3
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    Dataset updated
    Mar 6, 2024
    Dataset authored and provided by
    Bexar County
    Description

    FOR PLAT MAPS AND OTHER LAND DOCUMENTS, PLEASE VISIT THE COUNTY CLERK’S OFFICIAL RECORDS SEARCH: HTTPS://BEXAR.TX.PUBLICSEARCH.US.The Bexar County GIS Team does not have purview over plat maps and other land records. Please visit the Bexar County Clerk’s Official Records Search.

  18. Largest counties in the U.S. 2022

    • statista.com
    Updated Jul 5, 2024
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    Statista (2024). Largest counties in the U.S. 2022 [Dataset]. https://www.statista.com/statistics/241702/largest-counties-in-the-us/
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    Dataset updated
    Jul 5, 2024
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2022
    Area covered
    United States
    Description

    This statistic shows the 25 largest counties in the United States in 2022, by population. In 2022, about 9.72 million people were estimated to be living in Los Angeles County, California.

    Additional information on urbanization in the United States

    Urbanization is defined as the process by which cities grow or by which societies become more urban. Rural to urban migration in the United States, and around the world, is often undertaken in the search for employment or to enjoy greater access to services such as healthcare. The largest cities in the United States are steadily growing. Given their size, incremental increases yield considerable numerical gains as seen by New York increasing by 69,777 people in 2011, the most of any city. However in terms of percentage growth, smaller cities outside the main centers are growing the fastest, such as Georgetown city and Leander city in Texas.

    Urbanization has increased slowly in the United States, rising from 80.77 percent of the population living in urban areas in 2010 to 82.66 percent in 2020. In 2018, the United States ranked 14th in a ranking of countries based on their degree of urbanization. Unlike fully urbanized countries such as Singapore and Hong Kong, the United States maintains a sizeable agricultural industry. Although technological developments have reduced demands for rural labor, labor in the industry and supporting services are still required.

  19. d

    Texas Basemap - Lidar DEM

    • search.dataone.org
    • beta.hydroshare.org
    • +1more
    Updated Apr 15, 2022
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    Texas Natural Resources Information System (TNRIS) (2022). Texas Basemap - Lidar DEM [Dataset]. http://doi.org/10.4211/hs.0af044f25ebb4cc7b15f54f025378832
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    Dataset updated
    Apr 15, 2022
    Dataset provided by
    Hydroshare
    Authors
    Texas Natural Resources Information System (TNRIS)
    Area covered
    Texas
    Description

    This resource contains Lidar-DEM collection status shapefiles from the Texas Natural Resources Information System (TNRIS) [http://tnris.org]. For purposes of Hurricane Harvey studies, the 1-m DEM for Harris County has also been uploaded as a set of 4 zipfiles containing the DEM in tiff files.

    Project name: H-GAC 2008 1m Datasets: 1m Point Cloud, 1M Hydro-Enforced DEM, 3D Breaklines, 1ft and 5ft Contours Points per sq meter: 1 Total area: 3678.56 sq miles Source: Houston-Galveston Area Council (H-GAC) Acquired by: Merrick QA/QC: Merrick Catalog: https://tnris.org/data-catalog/entry/houston-galveston-area-council-h-gac-2008-lidar/

  20. K

    Harris County, Texas Property Parcels

    • koordinates.com
    csv, dwg, geodatabase +6
    Updated Sep 25, 2018
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    Harris County, Texas (2018). Harris County, Texas Property Parcels [Dataset]. https://koordinates.com/layer/97885-harris-county-texas-property-parcels/
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    pdf, geodatabase, shapefile, geopackage / sqlite, mapinfo tab, kml, mapinfo mif, dwg, csvAvailable download formats
    Dataset updated
    Sep 25, 2018
    Dataset authored and provided by
    Harris County, Texas
    Area covered
    Description

    Vector polygon map data of property parcels from Harris County, Texas containing 1,410,276 features.

    Property parcel GIS map data consists of detailed information about individual land parcels, including their boundaries, ownership details, and geographic coordinates.

    Property parcel data can be used to analyze and visualize land-related information for purposes such as real estate assessment, urban planning, or environmental management.

    Available for viewing and sharing 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.

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David Arctur; David Maidment (2023). Texas-Harvey Basemap - Addresses and Boundaries [Dataset]. http://doi.org/10.4211/hs.3e251d7d70884abd928d7023e050cbdc

Texas-Harvey Basemap - Addresses and Boundaries

Explore at:
Dataset updated
Dec 30, 2023
Dataset provided by
Hydroshare
Authors
David Arctur; David Maidment
Area covered
Description

This site provides access to download an ArcGIS geodatabase or shapefiles for the 2017 Texas Address Database, compiled by the Center for Water and the Environment (CWE) at the University of Texas at Austin, with guidance and funding from the Texas Division of Emergency Management (TDEM). These addresses are used by TDEM to help anticipate potential impacts of serious weather and flooding events statewide. This is part of the Texas Water Model (TWM), a project to adapt the NOAA National Water Model [1] for use in Texas public safety. This database was compiled over the period from June 2016 to December 2017. A number of gaps remain (towns and cities missing address points), see Address Database Gaps spreadsheet below [4]. Additional datasets include administrative boundaries for Texas counties (including Federal and State disaster-declarations), Councils of Government, and Texas Dept of Public Safety Regions. An Esri ArcGIS Story Map [5] web app provides an interactive map-based portal to explore and access these data layers for download.

The address points in this database include their "height above nearest drainage" (HAND) as attributes in meters and feet. HAND is an elevation model developed through processing by the TauDEM method [2], built on USGS National Elevation Data (NED) with 10m horizontal resolution. The HAND elevation data and 10m NED for the continental United States are available for download from the Texas Advanced Computational Center (TACC) [3].

The complete statewide dataset contains about 9.28 million address points representing a population of about 28 million. The total file size is about 5GB in shapefile format. For better download performance, the shapefile version of this data is divided into 5 regions, based on groupings of major watersheds identified by their hydrologic unit codes (HUC). These are zipped by region, with no zipfile greater than 120mb: - North Tx: HUC1108-1114 (0.52 million address points) - DFW-East Tx: HUC1201-1203 (3.06 million address points) - Houston-SE Tx: HUC1204 (1.84 million address points) - Central Tx: HUC1205-1210 (2.96 million address points) - Rio Grande-SW Tx: HUC2111-1309 (2.96 million address points)

Additional state and county boundaries are included (Louisiana, Mississippi, Arkansas), as well as disaster-declaration status.

Compilation notes: The Texas Commission for State Emergency Communications (CSEC) provided the first 3 million address points received, in a single batch representing 213 of Texas' 254 counties. The remaining 41 counties were primarily urban areas comprising about 6.28 million addresses (totaling about 9.28 million addresses statewide). We reached the GIS data providers for these areas (see Contributors list below) through these emergency communications networks: Texas 9-1-1 Alliance, the Texas Emergency GIS Response Team (EGRT), and the Texas GIS 9-1-1 User Group. The address data was typically organized in groupings of counties called Councils of Governments (COG) or Regional Planning Commissions (RPC) or Development Councils (DC). Every county in Texas belongs to a COG, RPC or DC. We reconciled all counties' addresses to a common, very simple schema, and merged into a single geodatabase.

November 2023 updates: In 2019, TNRIS took over maintenance of the Texas Address Database, which is now a StratMap program updated annually [6]. In 2023, TNRIS also changed its name to the Texas Geographic Information Office (TxGIO). The datasets available for download below are not being updated, but are current as of the time of Hurricane Harvey.

References: [1] NOAA National Water Model [https://water.noaa.gov/map] [2] TauDEM Downloads [https://hydrology.usu.edu/taudem/taudem5/downloads.html] [3] NFIE Continental Flood Inundation Mapping - Data Repository [https://web.corral.tacc.utexas.edu/nfiedata/] [4] Address Database Gaps, Dec 2017 (download spreadsheet below) [5] Texas Address and Base Layers Story Map [https://www.hydroshare.org/resource/6d5c7dbe0762413fbe6d7a39e4ba1986/] [6] TNRIS/TxGIO StratMap Address Points data downloads [https://tnris.org/stratmap/address-points/]

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