This map is for CAMP Location Web App.
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)
This map is for CAMP Location Web App.
Harris County Pollution Control CAMP Locations 2020
Harris County Pollution Control Carbon Disulfide
eBird trends data. Each 27km x 27km region is represented by a circle polygon scaled by the relative abundance. For more info, please check https://science.ebird.org/en/status-and-trends/faq
Harris County Public Health COVID-19 Data Hub. All data are provisional and subject to change. Data will be updated once a day at 4pm.
p2
p2
Hub keywords: Citizen Engagement;Public Works;Water Utilities;Catch Basins;ArcGIS Solutions
The objective of this work is to determine how concrete batch plants are impacting surrounding residents and whether certain communities are more at risk by assessing citizen complaints and characteristics of the communities where plants are located in Harris County, Houston, TX.
The objective of this work is to determine how concrete batch plants are impacting surrounding residents and whether certain communities are more at risk by assessing citizen complaints and characteristics of the communities where plants are located in Harris County, Houston, TX.
The objective of this work is to determine how concrete batch plants are impacting surrounding residents and whether certain communities are more at risk by assessing citizen complaints and characteristics of the communities where plants are located in Harris County, Houston, TX.
The objective of this work is to determine how concrete batch plants are impacting surrounding residents and whether certain communities are more at risk by assessing citizen complaints and characteristics of the communities where plants are located in Harris County, Houston, TX.
The objective of this work is to determine how concrete batch plants are impacting surrounding residents and whether certain communities are more at risk by assessing citizen complaints and characteristics of the communities where plants are located in Harris County, Houston, TX.
The objective of this work is to determine how concrete batch plants are impacting surrounding residents and whether certain communities are more at risk by assessing citizen complaints and characteristics of the communities where plants are located in Harris County, Houston, TX.
Stage 2 Environment
Stage 2
Demo
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency response planners identify and map the communities that will most likely need support before, during, and after a hazardous …
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency response planners identify and map the communities that will most likely need support before, during, and after a hazardous …
Stage 2 Environment
The Following Data is for Stage 2 Environment
Harris County Public Health COVID-19 Threat Level Indicators. All data are provisional and subject to change. Data will be updated once a day at 4pm.
Harris County Public Health COVID-19 Threat Level Indicators. All data are provisional and subject to change. Data will be updated once a day at 4pm.
Demo
Demo
Demo
Visualizes the Minority Health Social Vulnerability Index, an extension of the CDC/ATSDR Social Vulnerability Index 2018
U.S. low life expectancy at birth by census tract for the period 2010-2015. Average life expectancy data developed as a collaboration between NCHS, the National Association for Public Health Statistics and Information Systems, and the Robert Wood Johnson Foundation. This data is …
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency...
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency...
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency...
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency...
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency...
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency response planners identify and map the communities that will most likely need support before, during, and after a hazardous …
ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help public health officials and emergency response planners identify and map the communities that will most likely need support before, during, and after a hazardous …
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,…
Parcel polygon is the delineation of the property boundary
The National Risk Index Census tract-level data for the Risk Index. December 2025 Release. NOAA CCAP 2021 natural land classifications.
U.S. Census tracts provides boundaries and demographic information for the U.S. Census tracts within the United States. The boundaries are consistent with the tract, county, and state data sets.
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.