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.

This layer contains the locations of churches administered by the City of Houston under the status of "active".

© City of Houston This layer is a component of CommunityAmenities.

Locations of various community oriented facilities including clinics, churches, fire and police stations, libraries, and community centers. Dataset includes facilities and organizational locations that provide services to the citizens of Harris County, TX.

© CTS-GIS

Map service of city limit boundaries of Harris County, TX. Source GIS data files downloaded from HCAD (http://pdata.hcad.org). GIS Parcel data is updated bi-monthly by HCAD GIS personnel and uploaded to repository.

Hospitals in Harris County

This layer is sourced from www.gis.hctx.net.

Locations of Harris County hospitals used for demonstration and increasing the capibilities of ITC development staff.

© ITC repository

Official Dataset boundaries of the 22 watersheds surrounding Harris County

© HCFCD This layer is sourced from www.gis.hctx.net.

Official Datasetboundaries of the 22 watersheds surrounding Harris County

© Harris County Flood Control (HCFC)

DeprecatedUpdated for PY-2023 (effective March 1, 2023, to September 30, 2024). Deprecated October 1, 2024.What does the data represent?These are named polygons that follow block group boundaries that contain 51% or greater low-to-moderate income persons as published by HUD from 2011-2015 ACS data. That data has been superseded by data developed from 2016-2020 ACS data by HUD and published at https://services.arcgis.com/VTyQ9soqVukalItT/ArcGIS/rest/services/LMISD_layers/FeatureServer/4. Target areas primarily served residential areas, and each target area ideally could self-identify as the named community.Where were they located?Target Areas of Harris County fit within the Harris County Service Area, which was the unincorporated land of Harris County, Texas plus then-cooperative cities. Any portions of otherwise qualified block groups that extended into non-service area were excluded from the target area. This prevented “double-dipping” community development resource entitlements.How accurate are they?Block group boundaries in Harris County follow visual cues such as roadways and streams. Census Bureau linework attempts to delineate these bounding features but they are seldom more accurate than within thirty feet of ground truth.Full-service city boundaries determine whether an incorporated area is within the Harris County Service Area or the non-service area. These are updated roughly quarterly in the Harris County GIS Repository layer managed by the Harris County Appraisal District. Target areas have been updated each year using this data from the late autumn to the end of each calendar year.When were they collected?When HCCSD updated the Service Area and Target Areas of Harris County in the latter part of each Program Year, it uses the current HUD LMISD dataset and HCAD full-service city boundaries to perform the update. HUD publishes an updated LMISD dataset every year, but the data HUD analyzes to create these updates only changes when an additional five-year period of American Community Survey data has accumulated. Therefore the survey data reported in the HUD LMISD were collected from 4 to 8 years prior (PY2019) to as much as 9 to 13 years prior to publishing the results (PY2023). Unless a local income survey was conducted more recently between one and four years ago, each Program Year’s target area boundaries reflect LMISD block group information collected at least four to as much as thirteen years ago.Who collected them?Harris County Community Services Department (HCCSD) collected and Harris County Housing & Community Development (HCHCD) maintains Harris County Service Area and Target Area information. As representative of one of the largest urban counties in the U.S. and the largest in Texas, the Highest Elected Official in Harris County has delegated HCHCD to implement HUD-assisted community development activities on unincorporated land and on behalf of the cooperative cities. Cooperative cities are generally those of insufficient size to become entitled to HUD funds on their own, i.e. less than 50,000 population. Through 9/30/2024 Harris County maintained agreements with 12 cooperative cities, including: Deer Park, Galena Park, Humble, Jacinto City, Katy, La Porte, Morgan's Point, Seabrook, Shoreacres, South Houston, Tomball, and Webster in PY2023. Tomball ended its agreement 9/30/2024, thereafter becoming part of the non-service area.

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 all geographic areas for which the Census Bureau tabulates data for both the 2010 Census and the annual estimates and surveys. 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.

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.

This is vector (polygon) dataset represents 1,012 Voting Precincts in Harris County, Texas - effective January 1st, 2016 changes made complying with the Texas Legislative Council and directed by Harris County Commissioner Court.

This app shows evacuation routes and demographic data by census tract for Houston, Texas. The darker blue tracts have a higher percentage of households without a vehicle. This pattern helps answer the question: Where in Houston should we provide evacuation assistance during a hurricane?Use the map legend and feature pop-ups to learn more about the data shown in the map. Click individual census tracts to see pop-up information, including the percentage of households without a vehicle.The map in this app contains a Living Atlas layer of Houston evacuation routes and a layer of Houston demographic data. The demographic layer is styled using an Arcade expression that calculates the percentage of households without a vehicle. This information is also provided in pop-ups.

This service is publicly available GIS data representing Road Centerlines, as recorded by DETCOG in partnership with the relevant member local governments. The data available here covers Houston County and is a subset of the regional GIS database. DETCOG, in conjunction with its member governments, seeks to provide accurate and accessible GIS data and services to support public safety efforts throughout the region and support other regional needs and efforts.Any questions regarding the data may be directed to the DETCOG regional GIS staff or the relevant county GIS coordinator using the contact information available at https://www.detcog.gov/911

Harris County Public library branches geocoded from branch address list for use in Library services.

© HCITC-GIS, Grace Lillevig This layer is a component of CommunityAmenities.

Locations of various community oriented facilities including clinics, churches, fire and police stations, libraries, and community centers. Dataset includes facilities and organizational locations that provide services to the citizens of Harris County, TX.

© CTS-GIS

Geospatial data about Houston, Texas Contours (1K). Export to CAD, GIS, PDF, CSV and access via API.

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

Texas 2013 State House Districts from the US Census. Data was obtained from the US Census website and is based on their January 1, 2013 dataset.

© US Census This layer is sourced from www.gis.hctx.net.

TX State House Districts within Harris County. 2012. Data from USCB, accessed via H-GAC website.

© USCB

This service is publicly available GIS data representing the locations of locally assigned physical 9-1-1 addresses, as recorded by DETCOG in partnership with the relevant member local governments. The data available here covers Houston County and is a subset of the regional GIS database. DETCOG, in conjunction with its member governments, seeks to provide accurate and accessible GIS data and services to support public safety efforts throughout the region and support other regional needs and efforts.Any questions regarding the data may be directed to the DETCOG regional GIS staff or the relevant county GIS coordinator using the contact information available at https://www.detcog.gov/911

Flooding is the leading cause of weather-related deaths in Texas. According to Texas Tribune a digital-first, nonpartisan media organization, almost 6 million Texans, or about 20% of the population, live in an area susceptible to flooding (Tribune Texas). The Harris county on average experience a major flood somewhere every two years; this is according to MAAPnext a project funded by FEMA to deliver a transformative step in the management and regulation of Harris County’s floodplains, further contributing to it's resilience .

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

A complete set of alluvial basin boundaries in the upper Rio Grande Basin were compiled in a digital format for the groundwater component of a Focus Area Study (FAS). A literature and data search revealed that not all of the alluvial basin boundaries existed in a digital format that could be imported and used in a Geographic Information System (GIS). Available resources such as georeferenced report figures, digital elevation models (DEMs), principal aquifer datasets, surficial geology datasets, and structural features, such as faults, were used to aid in defining the alluvial basin boundaries. An Esri ArcGIS geodatabase was created to house the final digitized dataset of the following alluvial basins: San Luis, Española, Middle Rio Grande, Socorro, La Jencia, San Marcial, Engle, Palomas, Mesilla/Conejos-Medanos, Jornada del Muerto, San Agustin, Alamosa Creek, and Tularosa-Hueco.

This layer contains the locations of health centers, multi-service centers and WIC centers administered by the City of Houston under the status of "active".

© COHGIS This layer is a component of CommunityAmenities.

Locations of various community oriented facilities including clinics, churches, fire and police stations, libraries, and community centers. Dataset includes facilities and organizational locations that provide services to the citizens of Harris County, TX.

© CTS-GIS