Not loaded
Memorial & Hermann Park Roads
Hub keywords: DIR;Misc;Miscellaneous;Parks
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 |
279 matches (likely staff working copies and non-Houston research layers hidden)
Hub keywords: DIR;Misc;Miscellaneous;Parks
Hub keywords: TDO;Stormwater
Hub keywords: CIP;Capital Projects
Hub keywords: TDO;NTMP;Neighborhood Traffic Management Program;Traffic
Hub keywords: CIP;Parks;Recreation;Capital Projects
Hub keywords: HPC;Permits
Hub keywords: CIP;Capital Projects;Police
Hub keywords: DIR;Misc;Miscellaneous;Historical
Hub keywords: DIR;Landbase and Roads;Mowing
Hub keywords: CIP;Capital Projects;Sales
Hub keywords: CIP;Capital Projects;Sewer
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater;inlets;inlet;stormdrain
Hub keywords: TDO;Stormwater;stormdrain
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: CIP;Capital Projects;Sewer
Hub keywords: CIP;Capital Projects;Streets
Hub keywords: DIR;Landbase and Roads
Hub keywords: HPC;Encroachments;Subdivision
Hub keywords: Boundaries;Service Areas;Meter Basins
Hub keywords: TDO
Hub keywords: HW;Wastewater
Hub keywords: TDO;Traffic;Transportation
Hub keywords: TDO;Traffic;Transportation;Traffic Counts
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.