The United States Census Bureau publishes geographic units used for tabulation of the 2020 Census population data in the 2020 TIGER/Line Shapefile. The geographic units, which remain constant throughout the decade, include counties, census tracts, block groups, and blocks. Fields have been added so data formatted or published by the council can be joined to the shapefile for analysis. Each Shapefile (.shp) is in a compressed file (.zip) format. Blocks.zip - Census Blocks BlockGroups.zip - Block Groups Tracts.zip - Census Tracts Counties.zip - Counties Cities.zip - Census Places (Cities) CDPs.zip - Census Designated Places Each 'Pop' file contains the 2020 Census population for the corresponding geographic level. BlocksPop.zip - Census Blocks 2020 Census Population BlockGroupPop.zip - Census Block Groups 2020 Census Population TractsPop.zip - Census Tracts 2020 Census Population CountiesPop.zip - Counties 2020 Census Population

Geospatial data about Texas Address Points 2023. Export to CAD, GIS, PDF, CSV and access via API.

Existing reservoirs in the State of Texas beginning with the 1997 State Water Plan.https://www.twdb.texas.gov/mapping/gisdata.asp

The Watershed Boundary Dataset (WBD) in Texas was developed as a collaborative product by TWDB, USDA Natural Resources Conservation Service (NRCS) and USGS. The WBD is a seamless and consistent national Geographic Information System (GIS) database at a scale of 1:24,000, which has been extensively reviewed and matches to a minimum the USGS topographical 7.5 minute quadrangle map series. The traditional 8-digit hydrologic units (HUCs) have been further divided into smaller units called watersheds (10-digit HUCs) and sub-watersheds (12-digit HUCs). The watershed level is typically 40,000 to 250,000 acres, and the sub-watershed level is typically 10,000 to 40,000 acres with some as small as 3,000 acres. Federal Certification of the WBD for Texas was completed jointly by the NRCS and USGS in January 2009.This dataset, which has been developed to national standards (USGS and USDA/NRCS 2009), is intended to be managed in concert with the National Hydrography Dataset (NHD) as part of the Stewardship Program, supported by the U.S. Geological Survey with partner Federal, State and Local entities. Continuing development of the WBD in Texas will be completion of the 10 and 12-digit delineations of coastal watersheds. Some of the low lying coastal HUCs were not completed due to a lack of ultra high resolution elevation data necessary to determine the watershed boundaries.

The VTDs and Precincts available in this archive are based on 2010 Census geography. County election precincts are the geographic units established by county commissioners courts for the purpose of election administration. Voting Tabulation Districts (VTDs), the census geographic equivalent of county election precincts, are created for the purpose of relating census population data to election precinct data. VTDs can differ from actual election precincts because precincts do not always follow census geography. On the occasion that a precinct is in two noncontiguous pieces, it is a suffixed VTD in the database. For example, if precinct 0001 had two non-contiguous areas, the corresponding VTD would be VTD 0001A and VTD 0001B. If an election precinct does not match any census geography, it is consolidated with an adjacent precinct and given that precinct's corresponding VTD number. The boundaries included in this directory are for informational purposes only and may be approximate.

A census tract is a geographic area defined by the U.S. Census Bureau for the purpose of collecting and analyzing demographic data. Typically, a census tract contains a population of about 1,200 to 8,000 people and is designed to reflect homogenous social and economic characteristics. Tracts are used in various statistical analyses and are updated every ten years with the decennial census, allowing for a detailed understanding of population trends, housing, and economic conditions within specific communities. These files do not include demographic data, but they contain geographic entity codes that can be linked to the Census Bureau’s demographic data, available on https://data.census.gov. 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 produced by the US Census for the sole purpose of geographic reference. No warranty is made by the City of Austin regarding specific accuracy or completeness.

These data were automated to provide an accurate high-resolution historical shoreline of Corpus Christi Pass, Texas suitable as a geographic information system (GIS) data layer. These data are derived from shoreline maps that were produced by the NOAA National Ocean Service including its predecessor agencies which were based on an office interpretation of imagery and/or field survey. The NG...

Urban areas comprise a densely-settled core of census blocks that meet minimum housing unit density and/or population density requirements. This includes adjacent territory containing non-residential urban land uses. To qualify as an urban area, the territory identified according to criteria must encompass at least 2,000 housing units or a population of at least 5,000. These areas were delineated by the U.S. Census Bureau following the 2020 Decennial Census. For additional information, see: https://www.census.gov/programs-surveys/geography/guidance/geo-areas/urban-rural.html. For FAQs see: https://www2.census.gov/geo/pdfs/reference/ua/Census_UA_2020FAQs.pdf.

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/]

This polygon vector dataset delineates six informal geographic subregions within the model grid of the Rio Grande transboundary integrated hydrologic model and water-availability analysis, New Mexico and Texas, United States, and Northern Chihuahua, Mexico.

This Strategic Mapping (StratMap) multi-beam & single beam echo sounder bathymetry survey digital elevation model covers the San Jacinto River and Houston Ship Channel Shallows in Harris County, Texas. Collection took place August 31, 2023 through November 12, 2023.

Purpose and Use: This dataset was created to help with locating areas in and around Texas State University.. It is intended to give users the ability to easily locate the areas that are in and around Texas State University.Data Source: Data in this Texas State Boundary layer is created and maintained by the City of San Marcos, Texas, Geographic Information Systems (GIS) department.Contact: Geographic Information Systems (GIS): gisinfo@sanmarcostx.govUpdate Frequency: As needed.Jurisdiction: City of San Marcos.

The 2014 Austin Digital Assessment Project was supported by the Telecommunications & Regulatory Affairs Office of the City of Austin, the Telecommunications and Information Policy Institute at the University of Texas, and faculty and graduate students from the Department of Radio, Television, and Film and the University of Texas. This dataset includes the individual survey responses. To see aggregated dataset weighted to reflect Austin demographics, refer to the attached document

The 2022 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based files while others are available only as state-based files. School Districts are single-purpose administrative units within which local officials provide public educational services for the area's residents. The Census Bureau obtains the boundaries, names, local education agency codes, grade ranges, and school district levels for school districts from state officials for the primary purpose of providing the U.S. Department of Education with estimates of the number of children in poverty within each school district. This information serves as the basis for the Department of Education to determine the annual allocation of Title I funding to states and school districts. The cartographic boundary files include separate files for elementary, secondary and unified school districts. The generalized school district boundaries in this file are based on those in effect for the 2021-2022 school year, i.e., in operation as of January 1, 2022.

The 2023 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based files while others are available only as state-based files. Block Groups (BGs) are clusters of blocks within the same census tract. Each census tract contains at least one BG, and BGs are uniquely numbered within census tracts. BGs have a valid code range of 0 through 9. BGs have the same first digit of their 4-digit census block number from the same decennial census. For example, tabulation blocks numbered 3001, 3002, 3003,.., 3999 within census tract 1210.02 are also within BG 3 within that census tract. BGs coded 0 are intended to only include water area, no land area, and they are generally in territorial seas, coastal water, and Great Lakes water areas. Block groups generally contain between 600 and 3,000 people. A BG usually covers a contiguous area but never crosses county or census tract boundaries. They may, however, cross the boundaries of other geographic entities like county subdivisions, places, urban areas, voting districts, congressional districts, and American Indian / Alaska Native / Native Hawaiian areas. The generalized BG boundaries in this release are based on those that were delineated as part of the Census Bureau's Participant Statistical Areas Program (PSAP) for the 2020 Census.

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. Face refers to the areal (polygon) topological primitives that make up MTDB. A face is bounded by one or more edges; its boundary includes only the edges that separate it from other faces, not any interior edges contained within the area of the face. The Topological Faces Shapefile contains the attributes of each topological primitive face. Each face has a unique topological face identifier (TFID) value. Each face in the shapefile includes the key geographic area codes for almost all geographic areas for which the Census Bureau tabulates data for both the 2010 Census and Census 2000. The geometries of each of these geographic areas can then be built by dissolving the face geometries on the appropriate key geographic area codes in the Topological Faces Shapefile.

Using a LH Systems ALS50 Light Detection And Ranging (LiDAR) system, flight lines of standard density (1.4 meter ground sample distance) data were collected over areas in Matagorda County, TX (approximately 1139 square miles). Multiple returns were recorded for each laser pulse along with an intensity value for each return. The data acquisition occurred in 6 missions between April 9, 2006, April 16, 2006, April 17, 2006, May 11, 2006 through May 13, 2006. The data was collected by Sanborn Mapping Company, Inc. for the Texas Water Development Board (TWDB) and the Federal Emergency Management Agency (FEMA).

Project Level MetadataWetland mapping is conducted in defined geographic areas called projects. Imagery is used as the base information to define the type and location of each wetland. The scale, type and date of imagery used in a project is provided in a pop-up window when a wetland polygon is selected on the Wetlands Mapper. Investigators that complete a wetland mapping project record information on the source imagery, collateral data, inventory method, data limitations, geographic features, landforms, wetland types and other specifics in a project metadata document.This project level metadata can be found by selecting a wetland polygon on the Wetlands Mapper and then clicking on the link next to ‘Project Metadata’ in the pop-up window. Note: Not all areas have a Project Metadata document. Historic Wetlands Map Information MetadataInformation about the wetland types, vegetation, regional and temporal conditions and geographic features are captured in a historic map document. This document is specific to a geographic area and can be accessed by selecting a wetland polygon on the Wetlands Mapper and then clicking on the link next to ‘Historic Map Info’ in the pop-up window. Note: Not all areas have a Historic Wetlands Map Information document.Field Definitions:For field definitions contact the US Fish and Wildlife Service

Using a LH Systems ALS50 Light Detection And Ranging (LiDAR) system, flight lines of standard density (1.4 meter ground sample distance) data were collected over areas in Chambers County, TX (approximately 633 square miles). Multiple returns were recorded for each laser pulse along with an intensity value for each return. The data acquisition occurred in missions between April 22, 2006, and June 12, 2006. The data was collected by Sanborn Mapping Company, Inc. for the Texas Water Development Board (TWDB) and the Federal Emergency Management Agency (FEMA).

Using a LH Systems ALS50 Light Detection And Ranging (LiDAR) system, flight lines of standard density (1.4 meter ground sample distance) data were collected over areas in Jackson County, TX (approximately 851 square miles). Multiple returns were recorded for each laser pulse along with an intensity value for each return. The data acquisition occurred in 6 missions between April 9, 2006, April 16, 2006, April 17, 2006, and May 11, 2006 through May 13, 2006. The data was collected by Sanborn Mapping Company, Inc. for the Texas Water Development Board (TWDB) and the Federal Emergency Management Agency (FEMA).