Montana location data
Isopleth answers questions about any coordinate or street address in Montana with 351 public-data fields from 95 sources: flood and wildfire risk, soils and slope, the power grid, water and roads, climate, and county economics. Each value carries its source, license and vintage. Use it from the REST API or through the MCP server in Claude, ChatGPT, Cursor and other assistants.
Parcel coverage in Montana
Parcel records: 921,301 parcels in 56 counties. Published by Montana State Library; Montana Department of Revenue (Public, attribution); Tax year 2026, updated monthly, refreshed quarterly.
Share of parcels with each column filled: owner name 96%, site address 56%, total value 96%. Not published here: land use, sale date, zoning, year built.
Sample values in Montana
What our API returned at the Census Bureau's interior point of Montana's 3 largest counties by land area, computed 2026-10-29. One point is not a whole county: values can change within a few hundred meters, so look up your own site. "No data" means the dataset has nothing at that point.
| field | Beaverhead County | Phillips County | Flathead County |
|---|---|---|---|
| Hazards | |||
| FEMA flood zone | X | no data | D |
| Inside a mapped floodplain | No | No | No |
| Wildfire, annual frequency | 0.00056 events a year | 0.0014 events a year | 0.0092 events a year |
| Tornado, annual frequency | 0.036 events a year | 0.30 events a year | 0.033 events a year |
| Hail, annual frequency | 0.30 events a year | 0.92 events a year | 0.47 events a year |
| On a mapped wetland | No | No | No |
| Nearest mapped wetland | no data | 119 m | 302 m |
| Land | |||
| Elevation | 1,939 m (6,361 ft) | 769 m (2,524 ft) | 2,035 m (6,676 ft) |
| Slope | 19.4° | 0.6° | 34.4° |
| Soil drainage | Somewhat excessively drained | Well drained | no data |
| Soil hydrologic group | B | C | D |
| Farmland class | Prime | Statewide importance | Prime |
| Land use | Other | Other | Forest |
| Crop or cover (CDL) | Grass/Pasture | Grass/Pasture | Evergreen Forest |
| Tree canopy | 1% | 0% | 53% |
| On protected land (PAD-US) | Yes | No | Yes |
| Surface manager | Blm | Private or unknown | Usfs |
| Climate & energy | |||
| Annual precipitation (normal) | 303 mm (12 in) | 334 mm (13 in) | 1,712 mm (67 in) |
| Days above 32 °C a year | 1 days | 26 days | 0 days |
| Solar resource (GHI) | 4.30 kWh/m²/day | 3.87 kWh/m²/day | 3.72 kWh/m²/day |
| Mean wind speed at 100 m | 6.8 m/s | 7.0 m/s | 9.1 m/s |
| Wind capacity factor | 32% | 36% | 28% |
| Infrastructure | |||
| Nearest substation (69 kV+) | 10.8 km (6.7 mi) | 13.1 km (8.1 mi) | 5.7 km (3.6 mi) |
| Nearest gas pipeline | 12.6 km (7.8 mi) | 15.2 km (9.5 mi) | 9.8 km (6.1 mi) |
| Electric utility | VIGILANTE ELECTRIC COOP, INC | BIG FLAT ELECTRIC COOP INC | FLATHEAD ELECTRIC COOP INC |
| In a public water service area | No | No | No |
| Depth to water, nearest monitored well | 1.6 m (5 ft) | 55.5 m (182 ft) | 3.4 m (11 ft) |
| Nearest major road | 9.6 km (6.0 mi) | 3.3 km (2.0 mi) | 5.5 km (3.4 mi) |
| Community | |||
| Nearest fire station | 22.6 km (14.0 mi) | no data | 9.9 km (6.1 mi) |
| Nearest hospital | 20.7 km (12.9 mi) | 13.0 km (8.1 mi) | 10.2 km (6.4 mi) |
| Nearest school | 13.9 km (8.6 mi) | 11.9 km (7.4 mi) | 8.9 km (5.6 mi) |
| In an Opportunity Zone | No | No | No |
County pages
- Beaverhead County 5,543 sq mi of land
- Phillips County 5,140 sq mi of land
- Flathead County 5,087 sq mi of land
Datasets that returned data at these points
| source | fields |
|---|---|
BLM_SMA Bureau of Land Management | surface_management_agency |
EIA_ATLAS U.S. Energy Information Administration | nearest_gas_pipeline_distance_m |
EIA_POWER U.S. Energy Information Administration | electric_utility_service_territory, nearest_substation_distance_m |
EPA_CWS_SERVICE_AREAS U.S. Environmental Protection Agency | within_water_service_area |
FEMA_NFHL Federal Emergency Management Agency | nfhl_flood_zone, within_floodplain_polygon |
FEMA_NRI Federal Emergency Management Agency | hail_annual_frequency, tornado_annual_frequency, wildfire_annual_frequency |
HUD_OPPORTUNITY_ZONES U.S. Department of Housing and Urban Development | in_opportunity_zone |
NOAA_NCEI_NCLIMGRID_DAILY National Oceanic and Atmospheric Administration | days_above_32c_annual_count |
NOAA_NCEI_NORMALS_GRIDDED National Oceanic and Atmospheric Administration | annual_precipitation_normal_mm |
NREL_REV_LANDBASED_WIND_SC_2024 NREL reV supply curves, Open Energy Data Initiative (OEDI) | wind_capacity_factor_pct |
NREL_SOLAR_RESOURCE_V1 NREL Solar Resource Data (NSRDB) | ghi_annual_kwh_m2_day |
NREL_WIND_TOOLKIT NREL WIND Toolkit (Draxl et al., 2015) | mean_wind_speed_100m_ms |
OVERTURE_PLACES © Overture Maps Foundation | nearest_fire_station_distance_m, nearest_hospital_distance_m, nearest_school_distance_m |
OVERTURE_TRANSPORTATION © Overture Maps Foundation, © OpenStreetMap contributors | nearest_major_road_distance_m |
PAD_US USGS Protected Areas Database of the United States (PAD-US) | intersects_protected_area |
USDA_CDL U.S. Department of Agriculture | cdl_class |
USDA_SSURGO U.S. Department of Agriculture | prime_farmland_classification, soil_drainage_class, soil_hydrologic_group |
USFS_LCMS USDA Forest Service | land_use_class |
USFS_NLCD_TCC USDA Forest Service | tree_canopy_pct |
USFWS_NWI U.S. Fish and Wildlife Service | intersects_wetland, nearest_wetland_distance_m |
USGS_3DEP_COG U.S. Geological Survey | elevation, slope_degrees |
USGS_NWIS_OGC U.S. Geological Survey | nearest_groundwater_well_depth_to_water_m |
These are only the sources behind the fields sampled here. The full list is on Sources & licenses and every field is in the field catalog.
What people use it for in Montana
- Land buyers: screen a lot for flood zone, wetlands, slope, soils, road and water access before a site visit; search Montana parcels by county, acreage or land use. Buyers who want it written up can order a $29 report on Check the Land, which is built on Isopleth.
- Solar, wind and data-center siting: distance to transmission and substations, solar and wind resource, protected land.
- Insurance and lending: hazard frequencies and floodplain status for every address in a book.
- Real estate and research: county income, growth and house-price trends next to on-the-ground facts.
See use cases for prompts and the exact fields.
Try it
curl https://api.isopleth.dev/v1/fetch -H "Authorization: Bearer $ISOPLETH_KEY" \
-H "Content-Type: application/json" \
-d '{"lat": 45.133863, "lng": -112.892869, "preset": "site_selection"}'
Or ask your assistant: “Using Isopleth, what are the flood zone, slope and soil drainage at 45.1339, -112.8929?”
Next: Missouri · Nebraska · all states