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 |
2,869 matches (likely staff working copies and non-Houston research layers hidden)
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Feature layer generated from running the Generate Travel Areas analysis tool.
Feature layer generated from running the Generate Travel Areas analysis tool.
Feature layer generated from running the Generate Travel Areas analysis tool.
Feature layer generated from running the Generate Travel Areas analysis tool.
Feature layer generated from running the Create Buffers analysis tool.
Number of homes deferred from weatherization for non-language based reasons (types of deferrals this project can address) in Harris County.
Harris County Deferral Issue Category data by Zip Code. Data from BakerRipley, cleaned by Sequoia Riley and Margaret Cook. 2019-2022 data.
Harris County Deferral Issue Category data by Zip Code. Data from BakerRipley, cleaned by Sequoia Riley and Margaret Cook. 2019-2022 data.
Travis County, Harris County, CenterPoint, Austin Energy. The four areas are meant to show whether and what part of the WAP platform will be useful.
Number of homes weatherized in the last 15 years in Harris, Travis, and Jefferson Counties
[Legacy Portal] The Washington Avenue Corridor Parking Benefit District (PBD) is a defined geographic area in which a portion of the meter revenue is returned to the district to finance...
Hub keywords: HW;Wastewater
Hub keywords: HW;Wastewater
Hub keywords: HW;Wastewater
Hub keywords: HW;Wastewater
Hub keywords: Boundaries;Service Areas;Meter Basins
Hub keywords: Boundaries;Service Areas;Meter Basins
Hub keywords: HW;Wastewater
Hub keywords: InsideFence;Wastewater;Plants
Hub keywords: InsideFence;Wastewater;Plants
Hub keywords: InsideFence;Wastewater;Plants
Hub keywords: InsideFence;Wastewater;Plants
Hub keywords: HW;Water
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.