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Somerset County, NJ parcel and infrastructure data API

Korzy has about 130,000 parcel records for Somerset County, New Jersey, with source updates through July 2026. Nearly every record carries values and land use; 94% include last sale and 88% include year built. In and around the county the API also maps about 15 data-center projects (3 operating); 2 ports with reported cargo; and about 25 power plants with about 65 MW of capacity, led by solar. Look up any parcel by address or coordinates, then check nearby data-center projects, utilities and grid context at the same point.

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Parcel coverage in Somerset County

About 130,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from July 2026. Each record has a stable korzy_id you can store and look up again with /api/parcel-record. Share of records with each field:

FieldCoverageShare
Situs addressNearly all · 100%
Owner nameNot published
Assessed or market valueNearly all · 96%
Year builtMost · 88%
Building sizeMany · 66%
Last saleMost · 94%
Land useNearly all · 97%
ZoningNot published

Somerset County records do not include owner names. See pricing for credit costs.

Infrastructure in and around Somerset County

Power plants

About 25 operable plants with about 65 MW of nameplate capacity; largest by capacity: solar, natural gas. Proposed generators add 3 MW.

Plant details: /api/power/plants/{plant_id}

Substations and transmission

About 20 in-service substations, 7 rated 230 kV or higher.

About 120 miles of transmission lines: about 90 mi at 220–287 kV; about 20 mi at 500 kV.

Water and sewer service

Service areas of 8 community water systems cover about 66% of the county.

Sewer service areas of about 20 systems cover about 48%.

At a point: /api/utilities/context

Data-center projects

About 15 tracked projects: 3 operating, 10 status not reported. Reported operating capacity: about 30 MW.

Within 10 km of a point: /api/datacenters/context

Grid capacity data

1 utility-published grid capacity layer cover parts of Somerset County, including capacity bands.

Sources and dates: /api/grid/capacity/summary

Flood zones and wetlands

Special flood hazard areas cover about 10% of the county on the current federal flood maps, published September 2026.

Mapped wetlands cover about 9%.

Rail, ports and freight

  • About 80 miles of active rail, about 50 of it main line
  • About 35 miles of national freight network highway
  • 2 port areas with reported cargo tonnage

Within 25 km of a point: /api/logistics/context

Example requests for Somerset County

Real responses from the production API, trimmed to the main fields. Every request needs an API key with api:read; see authentication and credits and limits.

1. Find a parcel by address

/api/search matches 2154 CAMPLAIN ROAD, Hillsborough Township, NJ and returns the parcel's korzy_id, coordinates and record. 1 credit.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'q=2154 CAMPLAIN ROAD, Hillsborough Township, NJ' \
  https://api.korzy.co/api/search
Python
import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "2154 CAMPLAIN ROAD, Hillsborough Township, NJ"},
    headers={"Authorization": f"Bearer {os.environ['KORZY_API_KEY']}"},
    timeout=30,
)
response.raise_for_status()
parcel = response.json()["results"][0]
print(parcel["korzy_id"], parcel["longitude"], parcel["latitude"])
Response (trimmed)
{
  "results": [
    {
      "korzy_id": "34035-07dfea2d9d48f0173bda",
      "address": "2154 CAMPLAIN ROAD",
      "city": "Hillsborough Township",
      "postcode": "08844",
      "county": "Somerset",
      "statefp": "34",
      "longitude": -74.60740128411906,
      "latitude": 40.5363551,
      "match_type": "exact",
      "parcelid": "1810 71 10",
      "parceladdr": "2154 CAMPLAIN ROAD",
      "parcelcity": "Hillsborough Township",
      "situs_zip": "08844",
      "usedesc": "Commercial",
      "land_use_code": "4A",
      "yearbuilt": 1950,
      "bldgsqft": 6196,
      "taxacres": 0.65,
      "totalvalue": 318500,
      "land_value_usd": 170600,
      "improvement_value_usd": 147900,
      "saledate": "2005-06-23",
      "saleamt": 1345000,
      "updated": "2026-01-05",
      "geoid": "34035"
    }
  ],
  "truncated": false
}

2. Look up the parcel at a point

/api/query/point returns every parcel whose boundary covers the coordinates; here it returns the same record, 34035-07dfea2d9d48f0173bda, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-74.607401' \
  --data-urlencode 'latitude=40.536355' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point
JavaScript
const params = new URLSearchParams({"longitude": "-74.607401", "latitude": "40.536355", "limit": "5"});
const response = await fetch(`https://api.korzy.co/api/query/point?${params}`, {
  headers: { Authorization: `Bearer ${process.env.KORZY_API_KEY}` },
});
if (!response.ok) throw new Error(`Korzy API ${response.status}`);
const { records } = await response.json();
console.log(records.map((record) => record.korzy_id));

3. Check nearby data-center projects

/api/datacenters/context lists data-center projects within 10 km of the point, nearest first. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-74.607401' \
  --data-urlencode 'latitude=40.536355' \
  --data-urlencode 'radius_km=10' \
  --data-urlencode 'limit=3' \
  https://api.korzy.co/api/datacenters/context
Python
import os
import requests

response = requests.get(
    "https://api.korzy.co/api/datacenters/context",
    params={"longitude": "-74.607401", "latitude": "40.536355", "radius_km": "10", "limit": "3"},
    headers={"Authorization": f"Bearer {os.environ['KORZY_API_KEY']}"},
    timeout=30,
)
response.raise_for_status()
for project in response.json()["projects"]:
    print(project["name"], project["status"], project["distance_km"])
Response (trimmed)
{
  "projects": [
    {
      "project_id": "dc_e142953338a121f88493",
      "name": "Digital Realty Somerset (650 Randolph Road)",
      "operator": "Digital Realty",
      "status": "operating",
      "city": "Franklin Township (Somerset)",
      "state": "NJ",
      "longitude": -74.55552023570036,
      "latitude": 40.53772515,
      "location_precision": "footprint",
      "distance_km": 4.38691845384457
    },
    {
      "project_id": "dc_86270a60662c3e225ddc",
      "name": "BNY Mellon Somerset",
      "status": "unknown",
      "state": "NJ",
      "longitude": -74.55343155042979,
      "latitude": 40.536121,
      "location_precision": "footprint",
      "distance_km": 4.5609088063061405
    },
    {
      "project_id": "dc_814f0602a878a326eab7",
      "name": "Unnamed data center",
      "status": "unknown",
      "state": "NJ",
      "longitude": -74.54790270890203,
      "latitude": 40.524304349999994,
      "location_precision": "footprint",
      "distance_km": 5.203980861843917
    }
  ],
  "radius_km": 10,
  "limit": 3,
  "truncated": true
}

Somerset County data questions

How many parcels in Somerset County include year built?
About 110,000 of about 130,000 parcel records (88%) include year built.
Does the Korzy API return owner names for Somerset County parcels?
Somerset County parcel records do not include owner names. Values, land use and building facts are returned where the county publishes them.
How many data-center projects are in Somerset County?
Korzy tracks about 15 data-center projects in Somerset County: 10 status not reported and 3 operating. /api/datacenters/context lists projects within 10 km of any point.
How much power generation is in Somerset County?
About 25 operable power plants in Somerset County total about 65 MW of nameplate capacity, mainly solar and natural gas.
Which water systems serve Somerset County?
Service areas of 8 community water systems cover about 66% of Somerset County, and sewer service areas cover about 48%. /api/utilities/context returns the water and sewer matches at a point.

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Build on Somerset County parcel data

Search, point and record lookups work the same in every county Korzy covers. Credits are shared across parcels, utilities, environment, logistics and data-center routes.

Get an API keySee pricingAPI referenceUse cases for parcel and infrastructure data