Oregon location data
Isopleth answers questions about any coordinate or street address in Oregon 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 Oregon
Parcel records: 647,187 parcels in 3 of Oregon's 36 counties, loaded county by county from layers each county publishes for reuse: Multnomah (283,135), Washington (200,116), Clackamas (163,936). Refreshed quarterly.
Share of parcels with each column filled: site address 93%, total value 96%, land use 100%, sale date 78%, year built 86%. Not published here: owner name, zoning.
Sample values in Oregon
What our API returned at the Census Bureau's interior point of Oregon'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 | Harney County | Malheur County | Lake County |
|---|---|---|---|
| Hazards | |||
| FEMA flood zone | X | no data | no data |
| Inside a mapped floodplain | No | No | No |
| Wildfire, annual frequency | 0.015 events a year | 0.0081 events a year | 0.0028 events a year |
| Tornado, annual frequency | 0.096 events a year | 0.22 events a year | 0.076 events a year |
| Hail, annual frequency | 0.032 events a year | 0.11 events a year | 0.11 events a year |
| Current drought category | D1 | D2 | D1 |
| On a mapped wetland | No | No | No |
| Land | |||
| Elevation | 1,466 m (4,810 ft) | 1,200 m (3,938 ft) | 1,588 m (5,209 ft) |
| Slope | 12.4° | 30.3° | 1.8° |
| Soil drainage | Well drained | Well drained | Well drained |
| Soil hydrologic group | D | C | D |
| Farmland class | Prime | Prime | Prime |
| Land use | Other | Other | Other |
| Crop or cover (CDL) | Shrubland | Shrubland | Shrubland |
| Tree canopy | 0% | 0% | 0% |
| On protected land (PAD-US) | Yes | Yes | Yes |
| Surface manager | Blm | Blm | Blm |
| Climate & energy | |||
| Annual precipitation (normal) | 289 mm (11 in) | 305 mm (12 in) | 351 mm (14 in) |
| Days above 32 °C a year | 18 days | 37 days | 10 days |
| Solar resource (GHI) | 4.57 kWh/m²/day | 4.33 kWh/m²/day | 4.67 kWh/m²/day |
| Mean wind speed at 100 m | 6.5 m/s | 6.0 m/s | 6.2 m/s |
| Wind capacity factor | 32% | 24% | 23% |
| Infrastructure | |||
| Nearest substation (69 kV+) | 26.6 km (16.6 mi) | 45.3 km (28.2 mi) | 16.9 km (10.5 mi) |
| Nearest gas pipeline | 141.4 km (87.8 mi) | 101.3 km (63.0 mi) | 73.1 km (45.5 mi) |
| Electric utility | HARNEY ELECTRIC COOP, INC | HARNEY ELECTRIC COOP, INC | SURPRISE VALLEY ELECTRIFICATION |
| In a public water service area | No | No | No |
| Depth to water, nearest monitored well | 51.8 m (170 ft) | no data | no data |
| Nearest major road | 7.9 km (4.9 mi) | 35.6 km (22.1 mi) | 16.0 km (10.0 mi) |
| Community | |||
| Nearest school | no data | no data | 16.4 km (10.2 mi) |
| In an Opportunity Zone | No | No | No |
County pages
- Harney County 10,134 sq mi of land
- Malheur County 9,888 sq mi of land
- Lake County 8,139 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 |
JRC_PVGIS_NSRDB See source_url | ghi_annual_kwh_m2_day |
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_WIND_TOOLKIT NREL WIND Toolkit (Draxl et al., 2015) | mean_wind_speed_100m_ms |
OVERTURE_PLACES © Overture Maps Foundation | 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 |
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. | drought_category |
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 |
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 Oregon
- Land buyers: screen a lot for flood zone, wetlands, slope, soils, road and water access before a site visit; search Oregon 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": 43.064449, "lng": -118.987169, "preset": "site_selection"}'
Or ask your assistant: “Using Isopleth, what are the flood zone, slope and soil drainage at 43.0644, -118.9872?”
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