New Jersey location data
Isopleth answers questions about any coordinate or street address in New Jersey 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 New Jersey
Parcel records: 3,481,240 parcels in 21 counties. Published by NJ Office of GIS (NJOGIS); NJ Treasury MOD-IV tax list; counties (Public, attribution); Parcel publish dates 2023-2026 by county; MOD-IV tax attributes joined, refreshed annual.
Share of parcels with each column filled: site address 88%, total value 88%, land use 88%, sale date 80%, year built 76%. Not published here: owner name, zoning.
Sample values in New Jersey
What our API returned at the Census Bureau's interior point of New Jersey'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 | Burlington County | Ocean County | Atlantic County |
|---|---|---|---|
| Hazards | |||
| FEMA flood zone | X | X | X |
| Inside a mapped floodplain | No | No | No |
| Wildfire, annual frequency | 0.0033 events a year | 0.0061 events a year | 0.0020 events a year |
| Tornado, annual frequency | 0.019 events a year | 0.018 events a year | 0.0039 events a year |
| Hail, annual frequency | 2.0 events a year | 1.3 events a year | 1.5 events a year |
| Current drought category | no data | no data | D0 |
| On a mapped wetland | No | No | No |
| Nearest mapped wetland | no data | 23 m | 200 m |
| Land | |||
| Elevation | 30 m (99 ft) | 26 m (84 ft) | 22 m (73 ft) |
| Slope | 0.4° | 0.5° | 0.5° |
| Soil drainage | Excessively drained | Well drained | Well drained |
| Soil hydrologic group | A | A | A |
| Farmland class | Prime | Prime | Statewide importance |
| Land use | Forest | Forest | Forest |
| Crop or cover (CDL) | Deciduous Forest | Evergreen Forest | Deciduous Forest |
| Tree canopy | 59% | 83% | 62% |
| On protected land (PAD-US) | No | No | No |
| Surface manager | Private or unknown | Private or unknown | Private or unknown |
| Climate & energy | |||
| Annual precipitation (normal) | 1,200 mm (47 in) | 1,196 mm (47 in) | 1,197 mm (47 in) |
| Days above 32 °C a year | 25 days | 18 days | 18 days |
| Solar resource (GHI) | 4.18 kWh/m²/day | 4.10 kWh/m²/day | 4.28 kWh/m²/day |
| Mean wind speed at 100 m | 6.6 m/s | 7.0 m/s | 7.0 m/s |
| Wind capacity factor | 35% | 38% | 36% |
| Infrastructure | |||
| Nearest substation (69 kV+) | 11.7 km (7.2 mi) | 7.2 km (4.5 mi) | 3.9 km (2.4 mi) |
| Nearest gas pipeline | 22.4 km (13.9 mi) | 47.4 km (29.5 mi) | 54.0 km (33.5 mi) |
| Electric utility | ATLANTIC CITY ELECTRIC CO | JERSEY CENTRAL POWER & LT CO | ATLANTIC CITY ELECTRIC CO |
| In a public water service area | No | No | No |
| Depth to water, nearest monitored well | 0.9 m (3 ft) | 25.9 m (85 ft) | 5.5 m (18 ft) |
| Nearest major road | 1.3 km (0.8 mi) | 1.1 km (0.7 mi) | 116 m |
| Nearest FCC antenna structure | no data | no data | 1.4 km (0.9 mi) |
| Community | |||
| Nearest fire station | 6.2 km (3.8 mi) | 4.9 km (3.0 mi) | 1.2 km (0.8 mi) |
| Nearest hospital | 7.0 km (4.4 mi) | 4.7 km (2.9 mi) | 2.4 km (1.5 mi) |
| Nearest school | 4.9 km (3.0 mi) | 5.2 km (3.2 mi) | 3.6 km (2.2 mi) |
| In an Opportunity Zone | No | No | No |
County pages
- Burlington County 799 sq mi of land
- Ocean County 628 sq mi of land
- Atlantic County 556 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 |
FCC_ASR Federal Communications Commission | nearest_antenna_structure_distance_m |
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_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 |
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 New Jersey
- Land buyers: screen a lot for flood zone, wetlands, slope, soils, road and water access before a site visit; search New Jersey 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": 39.875786, "lng": -74.663006, "preset": "site_selection"}'
Or ask your assistant: “Using Isopleth, what are the flood zone, slope and soil drainage at 39.8758, -74.6630?”
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