Not loaded
Fiber Optic Cable
Hub keywords: TDO;Traffic
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: TDO;Traffic
Hub keywords: CIP;Fire;Survey Parcel
Hub keywords: HW;Wastewater
Hub keywords: TDO;Stormwater
Hub keywords: Houston;Acres;Home;Mobility;Study;area;transportation;infrastructure;City of Houston;Texas
Hub keywords: Houston;airport tiers;has;efd;iah;hou;transportation;infrastructure;City of Houston;Texas
Hub keywords: Houston;airspace boundaries;all airports;has;efd;iah;hou;transportation;infrastructure;City of Houston;Texas
Hub keywords: DIR;Landbase and Roads;Alleys
Hub keywords: Houston;existing programmed hc;bikeway;transportation;infrastructure;City of Houston;Texas
Hub keywords: Houston;proposed hc;bikeway;transportation;infrastructure;City of Houston;Texas
Hub keywords: Civility Ordinance;Houston;civility;ordinance;boundary;hpd;public safety;City of Houston;Texas;safety
Hub keywords: Houston;green corridor;planning;p&d;City of Houston;Texas;Planning;development;planning and development
Hub keywords: Houston;heritage distrcits;planning;p&d;Planning;development;planning and development;City of Houston;Texas
Hub keywords: Houston;market based;parking;planning;p&d;Planning;development;planning and development;City of Houston;Texas
Hub keywords: Houston;metro;rail;stations;planned;transportation;infrastructure;City of Houston;Texas
Hub keywords: Houston;metro;service;area;transportation;infrastructure;City of Houston;Texas
Hub keywords: Houston;Mtfp;Amendments;Transportation;Planning;infrastructure;City of Houston;Texas;transportation
Hub keywords: Houston;optimal ROW;Extension;Acres;Home;Mobility;Project;Transportation;infrastructure;City of Houston;Texas;transportation
Hub keywords: Houston;police regions;hpd;public safety;City of Houston;Texas;safety
Hub keywords: Houston;complete community;restricted;lot;driveway;access;planning;p&d;City of Houston;Texas;Planning;development;planning and development
Hub keywords: Road Centerlines
Hub keywords: Sidewalk Sectors Service Area;Houston;Transportation;Infrastructure;City of Houston;Texas;transportation;infrastructure
Hub keywords: Address;Site Address;Address Point
Hub keywords: Houston;street;width exception 60ft;planning;p&d;City of Houston;Texas;Planning;development;planning and development
Hub keywords: Houston;street;width exception area;planning;p&d;City of Houston;Texas;Planning;development;planning and development
Hub keywords: Houston;transit corridor parcels;planning;p&d;City of Houston;Texas;Planning;development;planning and development
Hub keywords: Houston;transit corridor streets;planning;p&d;City of Houston;Texas;Planning;development;planning and development
Hub keywords: City of Houston;Houston;Texas;public safety;safety;crime;crime summary;hpd
Hub keywords: City of Houston;Houston;Texas;public safety;safety;crime;crime summary;hpd
Hub keywords: City of Houston;Houston;Texas;public safety;safety;crime;crime summary;hpd
Hub keywords: City of Houston;Houston;Texas;public safety;safety;crime;crime summary;hpd
Hub keywords: FifthWard_KashmereClusterDashboard;MapServer
Hub keywords: XForm
Hub keywords: HW;Wastewater
Hub keywords: FifthWard_KashmereClusterDashboard;MapServer
Hub keywords: DIR;Misc;Miscellaneous;Parks
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.