Not loaded
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)
Facilities located within the boundaries of Harris County commissioner boundaries - 2020 version
Facilities located within the boundaries of Harris County commissioner boundaries - 2020 version
Facilities located within the boundaries of Harris County commissioner boundaries - 2020 version
Facilities located within the boundaries of Harris County commissioner boundaries - 2020 version
Facilities located within the boundaries of Harris County commissioner boundaries - 2020 version
Facilities located within the boundaries of Harris County commissioner boundaries - 2020 version
COC_Homeless_Housint_Facilities_HCnotCOH
COH_City_Limit
COH_City_Limit_hatched
Government Boundaries dataset include Houston City Limit boundary,City Council Districts, MUDs, Super Neighborhoods, Tax Incentive Reinvestment Zones (TIRZ), School Distircts, Lambert Grid, and zipcode.
COH_COVID
Compiled from Census data aggregated by Voting Precincts.
This feature class was digitized from legal descriptions by the City of Houston Planning and Development Department, GIS Services Division. The legal descriptions originate from the Planning and Development Department Public Policy Division; their legality is established with the…
Current, court approved, official data from revised A-1 commissioner precinct map as of 8/11/11. Formerly, Proposed_Comm_Pct2011RevisedA1. Updated to reflect 2016 election results Updated CM3 Commissioner name with election results from Nov. 3, 2020
Current, court approved, official commissioner precincts for Harris County TX
Official Harris County commissioner precinct precinct boundaries updated 2020 census
Community Center - Relinquished to PCT 3
CommunityCenters
This dataset contains all the facilities reported by each Precinct for publication of public Precinct/County maps. EDIT: FEB3, 2022 EDIT: December 9, 2021 for redistricting and updating EDIT: MAY 23, 2014
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.