[Legacy Portal] This dataset includes an ESRI geodatabase of Rebuild Houston data that is publicly available on the Rebuild Houston website at http://verify.rebuildhouston.org/prod/mapscip.htm...
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)
[Legacy Portal] This dataset includes an ESRI geodatabase of Rebuild Houston data that is publicly available on the Rebuild Houston website at http://verify.rebuildhouston.org/prod/mapscip.htm...
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Harris County Floodplain Reference Marks. DRAFT
In order for others to use the information in the Census TIGER data base in a geographic information system (GIS) or for other geographic applications,...
Regional Watersheds for the Harris County Flood Control District.
[City Secretary's Office] Individuals or companies that choose to lobby the City of Houston City Council or Administration must be registered with the City Secretary. While this list is updated...
The following Data include Lead Homes within Harris County
Flagged voter addresses related to re-precincting efforts
[Legal Department] The City of Houston's Legal Department maintains a database of all potential deed restriction violations reported to the City of Houston. This dataset represents all violations...
This folder includes climate data processed from grid level to 9-county level.
CCAP Land Cover summary statistics for 22 classes.
ResourceHarrisCountyPublicHealth
Hub keywords: DIR;Misc;Miscellaneous;Historical
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.