Not loaded
PIMBuildingEdwardAncestorsChurch
Persons In Motion Building Edward Ancestors Church
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 |
200 matches (likely staff working copies and non-Houston research layers hidden)
Persons In Motion Building Edward Ancestors Church
Persons In Motion Edward School PS 83
Persons In Motion Edward School PS 83
Persons In Motion Edward School PS 83
Persons In Motion Edward's Trajectory and Houses Up to Hancock
Persons In Motion Edward's Trajectory and Houses Up to Hancock
Arsenic plumes traced from site sampling maps by Golder, in Response Action Plan, Revision 5. RCRA Part B Renewal Application Compliance Plan. Attachment XI.D. August 31, 2020. PDF p. 156-157. Accessed from "Information on Houston Wood Preserving Works Site and Area Cancer Cluste…
Arsenic plumes traced from site sampling maps by Golder, in Response Action Plan, Revision 5. RCRA Part B Renewal Application Compliance Plan. Attachment XI.D. August 31, 2020. PDF p. 156-157. Accessed from "Information on Houston Wood Preserving Works Site and Area Cancer Cluste…
Polygon traced from "Atachment 2A-2 Response Action Design Groundwater," prepared November 2015 by Pastor, Behling & Wheeler LLC for Union Pacific Railroad Co.
ResourceHarrisCountyPublicHealth
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The CDC\ATSDR Social Vulnerability Index (SVI) is a tool, created by the Geospatial Research, Analysis and Services Program (GRASP), to help public health officials and emergency response planners identify and map the communities that will most likely need support before, during,…
The CDC\ATSDR Social Vulnerability Index (SVI) is a tool, created by the Geospatial Research, Analysis and Services Program (GRASP), to help public health officials and emergency response planners identify and map the communities that will most likely need support before, during,…
Building footprints coverted from underlying imagery from 2019-2020. This data is licensed by Microsoft under the Open Data Commons Open Database License (ODbL).
COVID-19
texas highways
Layer contains Abstract boundary lines with assigned number. Also contains original survey name and section number.
The Brazoria County Appraisal District's
The Brazoria County Appraisal District's
The Brazoria County Appraisal District's
The Red Book data points on a map.
The Red Book data points on a map.
The Red Book data points on a map.
The Red Book data points on a map.
The Red Book data points on a map.
The Red Book data points on a map.
Third Ward Organization
ThirdWard_Segment_Assessment
Heat map of the Industrial Disasters in Houston from 2015 to 2025, ranked by air emission duration using TCEQ reports.
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zipcode
Houston_Elevation
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.