Business Analyst Tyler James layers
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)
Business Analyst Tyler James layers
The Texas Metro Observatory developed the 2020 Texas Social Vulnerability Index at Block Group-level. To construct the Social Vulnerability Index, 18 variables were pulled from the 2020 ACS 5-year estimates data. The boundary is 2020 Census 500K Cartographic Census Block Group Bo…
[City of Houston] Top 5 Public information requests per department that reported to the Open Data Advisory Board
Heat map of the Industrial Disasters in Houston from 2015 to 2025, ranked by air emission duration using TCEQ reports.
The following map include the Total Deaths Vaccinated and Unvaccinated
Total FEMA Claims Heat Map
Total_Floodplain_Preservation
Rainfall_Last24Hours
Presence of seagrass in West Galveston Bay and Christmas Bay.
TPWD Creel Stations by county.
Shows major bay systems for Texas.
Shows minor bay systems for Texas.
Project goal was to synthesize nearly 10 years of historic bottom imagery of Galveston Bay. Texas Parks and Wildlife collected this data between 2008 – 2016,...
Project goal was to synthesize nearly 10 years of historic bottom imagery of Galveston Bay. Texas Parks and Wildlife collected this data between 2008 – 2016,...
Project goal was to synthesize nearly 10 years of historic bottom imagery of Galveston Bay. Texas Parks and Wildlife collected this data between 2008 – 2016,...
Project goal was to synthesize nearly 10 years of historic bottom imagery of Galveston Bay. Texas Parks and Wildlife collected this data between 2008 – 2016,...
Shapefile showing the extent/footprint of oyster restoration projects in Texas that TPWD was involved with. This does NOT include oyster restoration projects...
Data were collected from 11 September 2014 to 21 September 2016. Sidescan sonar imagery (GeoTIFF) is available for qualitative purposes. The sidescan range...
Data were collected from 11 September 2014 to 21 September 2016. Sidescan sonar imagery (GeoTIFF) is available for qualitative purposes. The sidescan range...
Data were collected from 11 September 2014 to 21 September 2016. Sidescan sonar imagery (GeoTIFF) is available for qualitative purposes. The sidescan range...
Seagrass locations along Texas coast
Ecologically Unique River and Stream Segments (31 TAC 357.8) updated using flowlines from NHDPlus (August 2008).
Provisional Texas State Park boundaries
This feature class is a component of TPWD 'base' data. 'Base' data includes current, statewide geospatial information intended to provided context for mapping purposes.
Hub keywords: TDO;Traffic;Transportation
[Legacy Portal] The City of Houston captures traffic activity and throughput through the use of traffic counts, which are turned into Average Daily Traffic (ADT) counts estimates to provide...
Hub keywords: TDO;Traffic;Transportation;Traffic Counts
Hub keywords: TDO;Traffic;Traffic Counts;Transportation
Hub keywords: TDO;Traffic;Traffic Counts;Transportation
Hub keywords: TDO;Traffic;Traffic Counts;Transportation
Fugro delivered 53,835 traffic signs for Harris Precinct 4
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.