States / Arizona
Arizona location data
Isopleth answers questions about any coordinate or street address in Arizona 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 Arizona
Parcel records: not offered in Arizona. No free statewide parcel layer with clear reuse terms. Every point field on this page still works at any coordinate in Arizona; see parcel coverage for the 35 states plus DC we cover.
Sample values in Arizona
What our API returned at the Census Bureau's interior point of Arizona'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 | Coconino County | Mohave County | Apache County |
|---|---|---|---|
| Hazards | |||
| FEMA flood zone | X | D | D |
| Inside a mapped floodplain | No | No | No |
| Wildfire, annual frequency | 0.018 events a year | 0.0022 events a year | 0.00066 events a year |
| Tornado, annual frequency | 0.12 events a year | 0.017 events a year | 0.014 events a year |
| Hail, annual frequency | 0.32 events a year | 0.13 events a year | 0.038 events a year |
| Current drought category | D0 | D0 | D1 |
| On a mapped wetland | No | No | No |
| Nearest mapped wetland | 103 m | 136 m | 30 m |
| Land | |||
| Elevation | 2,076 m (6,810 ft) | 1,560 m (5,118 ft) | 1,873 m (6,144 ft) |
| Slope | 1.2° | 14.5° | 0.7° |
| Soil drainage | Well drained | Well drained | Well drained |
| Soil hydrologic group | D | D | B |
| Farmland class | Prime | Prime | Prime |
| Land use | Forest | Other | Other |
| Crop or cover (CDL) | Evergreen Forest | Shrubland | Shrubland |
| Tree canopy | 8% | 0% | 0% |
| On protected land (PAD-US) | Yes | No | No |
| Surface manager | Usfs | Bia | Bia |
| Climate & energy | |||
| Annual precipitation (normal) | 355 mm (14 in) | 304 mm (12 in) | 292 mm (12 in) |
| Days above 32 °C a year | 13 days | 66 days | 27 days |
| Solar resource (GHI) | 5.53 kWh/m²/day | 5.61 kWh/m²/day | 5.54 kWh/m²/day |
| Mean wind speed at 100 m | 7.5 m/s | 7.1 m/s | 5.6 m/s |
| Wind capacity factor | 34% | 32% | 22% |
| Infrastructure | |||
| Nearest substation (69 kV+) | 29.5 km (18.3 mi) | 38.0 km (23.6 mi) | 22.0 km (13.6 mi) |
| Nearest gas pipeline | 17.1 km (10.6 mi) | 47.5 km (29.5 mi) | 20.6 km (12.8 mi) |
| Electric utility | ARIZONA PUBLIC SERVICE CO | UNS ELECTRIC, INC | NAVAJO TRIBAL UTILITY AUTHORITY |
| In a public water service area | No | No | No |
| Depth to water, nearest monitored well | no data | 116.1 m (381 ft) | 22.1 m (73 ft) |
| Nearest major road | 10.5 km (6.5 mi) | 30.8 km (19.2 mi) | 560 m |
| Community | |||
| Nearest school | no data | no data | 3.9 km (2.4 mi) |
| In an Opportunity Zone | Yes | Yes | No |
County pages
- Coconino County 18,616 sq mi of land
- Mohave County 13,332 sq mi of land
- Apache County 11,198 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_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_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, 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 Arizona
- Land buyers: screen a lot for flood zone, wetlands, slope, soils, road and water access before a site visit. 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": 35.829692, "lng": -111.773728, "preset": "site_selection"}'
Or ask your assistant: “Using Isopleth, what are the flood zone, slope and soil drainage at 35.8297, -111.7737?”
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