Brewster County, Texas
Brewster County covers 6,184 square miles of land. Below is what the Isopleth API returned at the Census Bureau's interior point for the county (29.80900, -103.25246) on 2026-10-29. The ground sits at 940 m (3,084 ft) on a 2.0° slope, the mapped soil is well drained, it is outside a mapped FEMA floodplain, the nearest 69 kV+ substation is 16.9 km (10.5 mi) away and a major road is 4.0 km (2.5 mi) away. Values describe that one point, not the whole county; look up your own address or coordinates for your site.
Sample point values
| field | value | source |
|---|---|---|
| Inside a mapped floodplain | No | FEMA_NFHL Federal Emergency Management Agency |
| Wildfire, annual frequency | 0.0067 events a year | FEMA_NRI Federal Emergency Management Agencyvintage December 2025 |
| Tornado, annual frequency | 0.42 events a year | FEMA_NRI Federal Emergency Management Agencyvintage December 2025 |
| Hail, annual frequency | 0.76 events a year | FEMA_NRI Federal Emergency Management Agencyvintage December 2025 |
| Current drought category | D0 | USDM_CURRENT The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, and the National Oceanic and Atmospheric Administration. Map courtesy of NDMC.vintage US Drought Monitor map valid 20261020 |
| On a mapped wetland | No | USFWS_NWI U.S. Fish and Wildlife Service |
| Nearest mapped wetland | 281 m | USFWS_NWI U.S. Fish and Wildlife Service |
| Elevation | 940 m (3,084 ft) | USGS_3DEP_COG U.S. Geological Surveyvintage 3DEP 1/3 arc-second seamless DEM |
| Slope | 2.0° | USGS_3DEP_COG U.S. Geological Survey |
| Soil drainage | Well drained | USDA_SSURGO U.S. Department of Agriculturevintage SSURGO TX622 mukey 58868 |
| Soil hydrologic group | D | USDA_SSURGO U.S. Department of Agriculturevintage SSURGO TX622 mukey 58868 |
| Farmland class | Prime | USDA_SSURGO U.S. Department of Agriculturevintage SSURGO TX622 mukey 58868 |
| Land use | Other | USFS_LCMS USDA Forest Servicevintage USFS LCMS CONUS 2025 annual (30 m) |
| Crop or cover (CDL) | Shrubland | USDA_CDL U.S. Department of Agriculturevintage USDA CDL 2025 (30 m) |
| Tree canopy | 0% | USFS_NLCD_TCC USDA Forest Servicevintage USFS/MRLC NLCD Tree Canopy Cover (latest annual, 30 m) |
| On protected land (PAD-US) | No | PAD_US USGS Protected Areas Database of the United States (PAD-US)vintage USGS PAD-US 4.1 (Protection Mechanism Category combined layer) |
| Surface manager | Private or unknown | BLM_SMA Bureau of Land Management |
| Annual precipitation (normal) | 296 mm (12 in) | NOAA_NCEI_NORMALS_GRIDDED National Oceanic and Atmospheric Administrationvintage NOAA NCEI 1991-2020 gridded (nClimGrid) monthly normals v1.0, annual layers |
| Days above 32 °C a year | 141 days | NOAA_NCEI_NCLIMGRID_DAILY National Oceanic and Atmospheric Administrationvintage NOAA nClimGrid-Daily v1.0 (scaled), 1991-2020 mean annual day counts |
| Solar resource (GHI) | 5.92 kWh/m²/day | JRC_PVGIS_NSRDB See source_url |
| Mean wind speed at 100 m | 5.2 m/s | NREL_WIND_TOOLKIT NREL WIND Toolkit (Draxl et al., 2015)vintage NREL WIND Toolkit CONUS v1.0.0, 2007-2013 (5-min, 2 km) |
| Wind capacity factor | 19% | NREL_REV_LANDBASED_WIND_SC_2024 NREL reV supply curves, Open Energy Data Initiative (OEDI)vintage NREL reV land-based wind SC 2024 (Open access) |
| Nearest substation (69 kV+) | 16.9 km (10.5 mi) | EIA_POWER U.S. Energy Information Administration |
| Nearest gas pipeline | 74.8 km (46.5 mi) | EIA_ATLAS U.S. Energy Information Administration |
| Electric utility | RIO GRANDE ELECTRIC COOP, INC | EIA_POWER U.S. Energy Information Administrationvintage HIFLD Electric Retail Service Territories |
| In a public water service area | No | EPA_CWS_SERVICE_AREAS U.S. Environmental Protection Agencyvintage V3.0 (2026-03-17) |
| Nearest major road | 4.0 km (2.5 mi) | OVERTURE_TRANSPORTATION © Overture Maps Foundation, © OpenStreetMap contributorsvintage 2026-10-21.0 |
| Nearest school | 20.5 km (12.7 mi) | OVERTURE_PLACES © Overture Maps Foundationvintage 2026-10-21.0 |
| In an Opportunity Zone | No | HUD_OPPORTUNITY_ZONES U.S. Department of Housing and Urban Development |
Fields with no data at this point are left out. See the field catalog for all 351 fields.
Parcels
Parcel records: 14,336,268 parcels in 254 counties. Brewster County has 20,282 of them. Published by Texas Geographic Information Office (TxGIO) / county appraisal districts (CC0-1.0); StratMap 2025 Land Parcels (county acquisitions through mid-2025; 253 of 254 counties, Donley missing), refreshed semiannual.
Share of parcels with each column filled: owner name 97%, site address 91%, total value 80%, land use 69%, year built 34%. Not published here: sale date, zoning.
The parcel under the sample point is 20,840.6 acres; its public record includes owner name, mailing address, total value, land value, legal description. parcel_enrich returns that record for any parcel you ask about, and parcel_search finds parcels by acreage, land use or value.
Look up your own site
curl https://api.isopleth.dev/v1/fetch -H "Authorization: Bearer $ISOPLETH_KEY" \
-H "Content-Type: application/json" \
-d '{"lat": 29.808997, "lng": -103.252458, "preset": "site_selection"}'
Or ask your assistant through the MCP server: “Using Isopleth, check flood zone, wetlands, soils and distance to power for [your address in Brewster County, Texas].”
Buying land here? Check the Land’s Brewster County page shows what its $29 report checks, built on these same Isopleth fields.
More in Texas: Pecos County · Hudspeth County · Texas overview · all states