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]

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/]

The geographic extent of a County, this file represents 3 counties (Dallas, Collin, Denton) clipped from a statewide 2010 Census dataset that are in the Tx N. Central 4202 State Plane projection. The TIGER/Line Files are shapefiles and related database files (.dbf) that 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 File 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. The 2010 Census boundaries for counties and equivalent entities are as of January 1, 2010, primarily as reported through the Census Bureau's Boundary and Annexation Survey (BAS).Metadata edited 01/2021

This layer is a component of Parcel Viewer.

This map document contains the parcel boundaries for Kerr County, Texas. The property ID number can be used to find more information about a parcel at the Kerr CAD website.

This map document also includes the municipal boundaries, extraterritorial jurisdiction, and FEMA floodplains for reference.

© Kerr Central Appraisal District, City of Kerrville, Texas, FEMA

This layer shows the parcel boundaries in Kerr County. The parcel boundaries were last updated in June 2012. For more information about properties in Kerr County please contact the Kerr Central Appraisal District (CAD) at 830-895-5223 or visit their website at www.kerrcad.org.

© Kerr Central Appraisal District This layer is a component of Parcels.

This map document contains the parcel boundaries for Kerr County, Texas. The property ID number can be used to find more information about a parcel at the Kerr CAD website.

© Kerr Central Appraisal District, City of Kerrville, Texas

Extraterritorial Jurisdictions (ETJ) municipal boundaries within Montgomery County, Texas.Boundaries for Cleveland, Conroe, Houston, Montgomery, Splendora, Stagecoach, Willis came from map documents found on their city websites. All other boundaries were created Montgomery County GIS applying a 0.5 mile buffer around municipal boundaries managed by Montgomery Central Appraisal District and adjusted per city ETJs.

This layer shows the flood zones as defined by FEMA.

© FEMA This layer is a component of Parcel Viewer.

This map document contains the parcel boundaries for Kerr County, Texas. The property ID number can be used to find more information about a parcel at the Kerr CAD website.

This map document also includes the municipal boundaries, extraterritorial jurisdiction, and FEMA floodplains for reference.

© Kerr Central Appraisal District, City of Kerrville, Texas, FEMA

This dataset contains traffic incident information from the Austin-Travis County traffic reports collected from the various Public Safety agencies through a data feed from the Combined Transportation, Emergency, and Communications Center (CTECC).

For further context, see: - Active Incidents: Map and Context - https://data.austintexas.gov/stories/s/Austin-Travis-County-Traffic-Report-Page/9qfg-4swh/ - Data Trends and Analysis - https://data.austintexas.gov/stories/s/48n7-m3me

The dataset is updated every 5 minutes with the latest snapshot of active traffic incidents.

Modified from Travis Central Appraisal District (TCAD) GIS Data.The Elgin Zoning datasets originate from the Bastrop County and Travis County parcels as primary datasets. The City of Elgin zoning changes approved prior to January 2016 were incorporated into fields in this dataset. Zoning Codes and Descriptions: R-1Single FamilyR-2Single Family & DuplexR-3Single Family, Duplex & Mobile HomeAMultiple FamilyC-1Neighborhood Shopping DistrictC-2General Commercial DistrictC-3Highway Commercial DistrictIGeneral Industrial DistrictS-PSpecial PermitThis dataset has limits of use and constraints.

This layer contains the data for the Stream Centerlines in the City of Round Rock, located in Williamson County, Texas. This layer is part of an original dataset provided and maintained by the City of Round Rock GIS/IT Department. The data in this layer are represented as lines. This layer depicts streams within the City of Round Rock as lines measured from their center points. The streams in this dataset include information including names, types of features (perennial, intermittent, underground, and pond), the data source, and the basin from which the stream originates.

The Kerrville 2011 2-ft Contour is intended to be used for general reference and visualization, and is not a substitute for an on-the-ground survey conducted by, or under the supervision of, a registered professional land surveyor.The two foot contours were derived from 2011 lidar data. The lidar was filtered to ground points only and exported to a multipoint dataset. The multipoint dataset, breaklines, and project extent were used to create a terrain dataset. Building footprints were used to remove any points that fell inside a building footprint due to misclassification of the lidar point. A digital elevation model (DEM) was created from the terrain dataset with a 10-ft cell size. The 10-ft DEM was smoothed using focal statistics by averaging a 3x3 cell sized rectangular area across the entire DEM. Contours were created from the smoothed DEM at a two foot interval with a base elevation of 1,500 feet. Contours smaller than 39.5-ft were removed and contours completely within waterbodies were removed. The contours were then split into 20 rows by 10 columns to improve performance. Then the contours were run through a smoothing process to remove sharp bends in the lines without affecting the general location of the lines. Lastly index intervals were calculated for 10-ft, 20-ft, 50-ft, and 100-ft.The lidar collection that the 2ft Contours 2011 was created from was flown and processed by Merrick & Company, covering portions of Blanco, Caldwell, DeWitt, Gonzales, Kendall and Kerr counties in central Texas. Aerial collection took place from January to March 2011 during the leaf-off season. URS provided third-party quality assurance and quality control (QA/QC). The collection was funded by the Floodplain Mapping Group in tandem with the Strategic Mapping Program (StratMap) and were procured through the Council on Competitive Government’s High Priority Imagery and Datasets (HPIDS) contract.

This dataset includes 2020 census blocks as delineated by the U.S. Census Bureau and made available through their TIGER/Line files. Census blocks are statistical areas bounded on all sides by visible features (e.g., streets, roads, streams, railroad tracks), and by non-visible boundaries (e.g., city or town limits, short line-of-sight extensions of streets and roads). Generally, census blocks are small in area (e.g., a block in a city). However, census blocks in suburban and rural areas may be large, irregular, and bounded by a variety of features. In remote areas, they may encompass hundreds of square miles. Blocks do not cross the boundaries of any entity for which the Census Bureau tabulates data. Census blocks are numbered uniquely within the boundaries of each state, county, and census tract with a 4-character census block number. The first character of the tabulation block number identifies the block group. A block number can only be unique by using the decennial census state, county, census tract, and block codes combined. There is no consistency in block numbers from census to census. For more information about census geographies, see https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2020/TGRSHP2020_TechDoc_Ch4.pdf .This file is for reference use only. NCTCOG and its members are not responsible for errors or inaccuracies in the file.

This dataset includes census blocks as delineated by the U.S. Census Bureau and made available through their TIGER/Line files. These delineations were prepared for tabulation of the 2010 decennial census data. Blocks are statistical areas bounded by visible natural landforms and man-made structures, such as streets, roads, streams, and railroad tracks, and by nonvisible limits, such as selected property lines and city, township, school district, and county limits and short line-of-sight extensions of streets and roads. Generally, census blocks are small in area; for example, a block in a city bounded on all sides by streets. Census blocks are numbered uniquely with a four-digit census block number from 0000 to 9999 within census tract, which nest within state and county. The first digit of the census block number identifies the block group. Block numbers beginning with a zero (in Block Group 0) are only associated with water-only areas. For more information about census geographies, see http://www.census.gov/geo/reference/ . This file is for reference use only. NCTCOG and its members are not responsible for errors or inaccuracies in the file.