Supporting data for the federal briefing, LMI, SVI, Justice 40, R/ECAP datasets.
Houston and Harris County publish a huge amount of open data, scattered across dozens of portals nobody tracks. This catalog lists every dataset we've found in one place, whether or not it's loaded into the explorer. Know a source we're missing? Add it, and it's shared with everyone.
| Source | What it is | Items | Loaded |
|---|---|---|---|
| Harris County ArcGIS Online services.arcgis.com |
One organization shared by county departments, precincts and staff. Mixes authoritative layers (fire stations, parks, crashes) with many working copies and one-off maps; review before use. | 3,112 | 16 |
| Rice University ArcGIS Online services.arcgis.com |
Research and class projects. Houston gems (HCFCD buyout lots, draft 2026 FEMA flood map, historical census, redlining) among worldwide student work. Research copies of agency data need permission before reuse. | 2,888 | 0 |
| Houston Advanced Research Center (HARC) ArcGIS Online services2.arcgis.com |
Environmental and regional research layers; source of the 2021 city cool-center list. | 528 | 1 |
| City of Houston GIS (ArcGIS Hubs) geohub.houstontx.gov |
Two Hub sites (Public Works geohub, citywide mycity) over several ArcGIS servers. Official. | 314 | 119 |
| Harris County Flood Control District ArcGIS Online services2.arcgis.com |
High-water marks, floodplains, projects, acreage by program. Source of the storm HWM layers. | 265 | 4 |
| City of Houston Open Data (data.houstontx.gov) data.houstontx.gov |
Separate from the GIS hubs. Mostly spreadsheets; finance (checkbook, payroll, budget) and census stay current, much else frozen since a 2023 migration. | 94 | 0 |
| U.S. Census Bureau api.census.gov |
4 | 3 | |
| FEMA (OpenFEMA and National Flood Hazard Layer) www.fema.gov |
4 | 3 | |
| U.S. Environmental Protection Agency data.epa.gov |
2 | 2 | |
| Centers for Disease Control and Prevention data.cdc.gov |
2 | 2 | |
| Texas Commission on Environmental Quality www.tceq.texas.gov |
2 | 1 | |
| Texas Water Development Board www.twdb.texas.gov |
1 | 1 | |
| U.S. Geological Survey water data waterservices.usgs.gov |
1 | 0 | |
| City of Houston 311 public data extracts www.houstontx.gov |
1 | 1 | |
| METRO (Harris County transit) www.ridemetro.org |
1 | 0 | |
| Stanford Open Policing Project openpolicing.stanford.edu |
1 | 0 | |
| TxDOT Crash Records Information System (CRIS) cris.dot.state.tx.us |
1 | 0 |
2,869 matches (likely staff working copies and non-Houston research layers hidden)
Supporting data for the federal briefing, LMI, SVI, Justice 40, R/ECAP datasets.
Supporting data for the federal briefing, LMI, SVI, Justice 40, R/ECAP datasets.
Supporting data for the federal briefing, LMI, SVI, Justice 40, R/ECAP datasets.
Flood Hazard Areas (Flood Zones) from FEMA's National Flood Hazard Layer (NFHL).
FEMA FIRM Panels
The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which requires the purchas…
FEMA NFHL Cross Sections
Severe Repetitive Loss due to flooding matched to CDC's SVI dataset.
The National Flood Insurance Program (NFIP) was created in 1968 to provide affordable insurance against flood risk. This data shows properties have met the...
Summary of Severe Repetitive Flooding Properties by Zip Code.
The National Risk Index contains county and Census tract-level data for the Risk Index, Expected Annual Loss, Social Vulnerability, and Community Resilience. The National Risk Index data helps to illustrate the communities most at risk for 18 natural hazards across the United Sta…
The National Risk Index contains county and Census tract-level data for the Risk Index, Expected Annual Loss, Social Vulnerability, and Community Resilience. The National Risk Index data helps to illustrate the communities most at risk for 18 natural hazards across the United Sta…
Hub keywords: TDO;Traffic
FIFA_2026_Fan_Fest_Event
FIFA 2026 fan festival locations in Harris County.
HCAD building improvement types as of April 2019.
Hub keywords: CIP;Fire;Survey Parcel
Fire station data obtained from USGS. Created to include all FS within a 10 mile search radius of Harris County boundary polygon.
[Legacy Portal] All Fiscal Year 2013 TIRZ Capital Improvement Projects - as planed for the next 5 fiscal years. TIRZ are Tax Increment Reinvestment Zones. Learn more at...
VMC Location updated 8/23/2023
Fleetwave Sites
Fleetwave Sites
Fleetwave Sites
Harris County Flood Control Storm Water
Floodplain Administrators for the MAAPNext Program
Floodplain_Preservation_by_Year
This feature class was created using the following tool parameters: - Area of Interest: in_memory\f6774A1A1_FBF0_4093_9899_EEA092AF7E1B - Output Feature Class: GenerateTessellation2 - Cell Geometry Type: H3_HEXAGON - H3 Resolution: 8
Food Districts represent the areas that the Environmental Public Health (EPH) Food Program will serve in 2018.
[Houston Health Department] Food Establishments with HDHHS Approved Dog Patios
Hub keywords: HW;Wastewater
Hub keywords: TDO;Stormwater
Additional analysis on the 2024 CAPA heat data with the For Us Tree study area by Community Tabulation Area 2010. The two areas Willowridge and Four Corners are within the For Us Tree project area but they are not Kinder Rice Community Tabulation Areas.
itree data in the For Us Tree study area by Community Tabulation Area.
Additional analysis on the 2024 CAPA heat data with the For Us Tree study area by Community Tabulation Area 2010. The two areas Willowridge and Four Corners are within the For Us Tree project area but they are not Kinder Rice Community Tabulation Areas.
Additional analysis on the Fugro LiDAR 2018 and 2024 with the For Us Tree study area by Community Tabulation Area 2010. The two areas Willowridge and Four Corners are within the For Us Tree project area but they are not Kinder Rice Community Tabulation Areas.
The Climate and Economic Justice Screening Tool provides important information by identifying communities that experience high burdens. These communities are considered disadvantaged. This information will be used for the Justice40 Initiative. The current version of the tool is 1…
Found Houston or Harris County open data we don't list? A portal, a map service, a spreadsheet on an agency page, a research dataset? Tell us where it is. Reviewed suggestions are added to the catalog for everyone.