In the explorer
Pavement Conditions
Hub keywords: DIR;Landbase and Roads
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;Landbase and Roads
Hub keywords: HPC;SCPS;Permits
Hub keywords: TDO;Traffic;Transportation
Hub keywords: TDO;Traffic;Signs
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: TDO;Stormwater
Hub keywords: HCFCD
Hub keywords: Traffic;TDO;Traffic Counts;Transportation
Hub keywords: TDO;Traffic;Traffic Counts;Transportation
Hub keywords: TDO;Traffic;Transportation;Traffic Counts
Hub keywords: HCFCD
Hub keywords: CIP;Capital Projects;Wastewater
Hub keywords: Boundaries;Service Areas;Meter Basins
Hub keywords: Boundaries;Service Areas;Meter Basins
Hub keywords: HW;Wastewater
Hub keywords: HW;Water
Hub keywords: DIR;Misc;Miscellaneous;Bikeways
Hub keywords: HPC;Billboards
Hub keywords: res;survey section
Hub keywords: Citizen Engagement;Public Works;Water Utilities;Catch Basins;ArcGIS Solutions
Hub keywords: HW;Wastewater
Hub keywords: DIR;Miscellaneous;Misc
Hub keywords: COHGIS;City of Houston;Houston;Texas;Administrative boundary;admin;admin boundary;boundaries;administrative;boundary;Multi-Level Grids;Open Location Code
Hub keywords: COHGIS;City of Houston;Houston;Texas;Administrative boundary;admin;admin boundary;boundaries;administrative;boundary;Multi-Level Grids;Open Location Code
Hub keywords: HPC;DAS;Permits
Hub keywords: HPC;DAS;Permits
Hub keywords: DIR;Misc;Miscellaneous
Hub keywords: TDO;Stormwater;Drainage;Parcels
Hub keywords: HPC;Encroachments
Hub keywords: HPC;Encroachments
Hub keywords: FifthWard_KashmereClusterDashboard;MapServer
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.