The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
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 |
1,550 matches (likely staff working copies and non-Houston research layers hidden)
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
The layers in this Web service depict the following DSHS licensed facilities data downloaded from the DSHS website in April 2020.
investigator_zones
GIS data files downloaded from HCAD (from http://pdata.hcad.org) 3/2/2015. GIS county data is updated quarterly by HCAD GIS personnel and uploaded to repository. The last HCAD update Mar 20 next update Jan 2024
Environmental Justice Screen
Harris County Environmental Justice Diesel PM
Harris County Environmental Justice Lead Paint Indicator
Harris County Environmental Justice Lingual Isolated
Environmental Justice Screen Education level
Harris County Environmental Justice Senior
Harris County Environmental Justice Ozone
Harris County Environmental Justice Minority
Harris County Environmental Justice PM25
Harris County Environmental Justice Proximity to National Priority List Sites
Harris County Environmental Justice Proximity to RMP Site
Harris County Environmental Justice Proximity to Treatment Storage and Disposal Facility
Harris County Environmental Justice Proximity to Wastewater Dischargers Indictor
Harris County Environmental Justice Respiratory Hazard Index
Harris County Environmental Justice Traffic Proximity and Volume
Harris County Environmental Justice Minor
ESI Field Mapping Template
ESI Field Mapping Template
ESI Field Mapping Template
ESI Field Mapping Template
ESI Field Mapping Template
ESI Field Mapping Template
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.