Not loaded
SJRA Regional Watersheds
SJRA Regional Watersheds
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)
SJRA Regional Watersheds
SJRA Watersheds
[Office of Business Opportunity] City of Houston Office of Business Opportunity's database of registered Small, Minority, and Women Disadvantaged Business Enterprises (SMWDBE) within the City.
[Houston Fire Department] Smoke detectors in the City of Houston, as kept by the Houston Fire Department Community Affairs Division
The ESI data were collected, mapped, and digitized to provide environmental data for oil spill planning and response.
The State of the Bay's sub bay classifications are based on the GBEP segments.
TCEQ stations in the State of the Bay study area.
TDSHS bacteria sampling stations in the State of the Bay study area.
TCEQ segments for streams/linear features and statistics based on 300 meters buffer.
Sports_Food_Combined_AGO
U.S. Census tracts provides boundaries and demographic information for the U.S. Census tracts within the United States. The boundaries are consistent with the tract, county, and state data sets.
U.S. Census tracts provides boundaries and demographic information for the U.S. Census tracts within the United States. The boundaries are consistent with the tract, county, and state data sets.
Mask for the Spring Creek watershed.
Spring Creek Nature Trail and Access Points
Spring Creek Nature Trail and Access Points
Spring Creek Trail Systems
Spring Creek Trail Systems
Spring Creek Trail Systems
Spring Creek Trail Systems
Portion of the Spring Creek Watershed outside the Harris County boundary.
Current and Proposed Stations for District 6 Proposals
Updated 9:25 071524
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
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.