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. A /v1/lookup with the datacenters section lists projects within 10 km of any address or 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%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

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.

Get an API key Read the API docs

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 /v1/records/{id}. Share of records with each field:

Field	Coverage	Share
Situs address	Nearly all · 100%
Owner name	Not published
Assessed or market value	Nearly all · 96%
Year built	Most · 88%
Building size	Many · 66%
Last sale	Most · 94%
Land use	Nearly all · 97%
Zoning	Not 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.

Within 50 km: /v1/lookup section power; details: /v1/records/{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 an address or point: /v1/lookup section utilities

Data-center projects

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

Within 10 km: /v1/lookup section datacenters

Grid capacity data

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

Nearby records: /v1/lookup section grid

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%.

At an address or point: /v1/lookup section environment

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: /v1/lookup section logistics

Example requests for Somerset County

The lookup response is a real production response, trimmed to the main fields. Every request needs an API key with api:read; see authentication and credits and limits.

1. Find a parcel and nearby data-center projects

/v1/lookup matches 280 DUKES PARKWAY EAST, Hillsborough Township, NJ and returns the parcel's korzy_id and record, plus the data-center projects within 10 km, nearest first. 2 credits.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"address":"280 DUKES PARKWAY EAST, Hillsborough Township, NJ","sections":["datacenters"]}' \
  https://api.korzy.co/v1/lookup

Python

import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "280 DUKES PARKWAY EAST, Hillsborough Township, NJ", "sections": ["datacenters"]},
    headers={"Authorization": f"Bearer {os.environ['KORZY_API_KEY']}"},
    timeout=60,
)
response.raise_for_status()
body = response.json()
parcel = body["parcels"]["records"][0]
print(parcel["korzy_id"], body["sections"]["datacenters"]["status"])

Production response (trimmed)

{
  "location": {
    "longitude": -74.60083249384616,
    "latitude": 40.5512424,
    "address": "280 DUKES PARKWAY EAST, Hillsborough Township",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "34035-2a9ee94a1c60fe967cd0",
        "korzy_id": "34035-2a9ee94a1c60fe967cd0",
        "parcelid": "1810 58 03 1",
        "parceladdr": "280 DUKES PARKWAY EAST",
        "parcelcity": "Hillsborough Township",
        "situs_zip": "08835",
        "statefp": "34",
        "geoid": "34035",
        "longitude": -74.60083249384616,
        "latitude": 40.5512424,
        "usedesc": "Commercial",
        "land_use_code": "4A",
        "yearbuilt": 1960,
        "bldgsqft": 5046,
        "taxacres": 0.8200000000000001,
        "totalvalue": 430200,
        "land_value_usd": 184500,
        "improvement_value_usd": 219700,
        "saledate": "2015-06-10",
        "saleamt": 212000,
        "updated": "2026-01-05"
      }
    ],
    "truncated": false
  },
  "sections": {
    "datacenters": {
      "status": "ok",
      "data": {
        "radius_km": 10,
        "projects": [
          {
            "id": "datacenter:dc_391e1e7e388da80d908a",
            "project_id": "dc_391e1e7e388da80d908a",
            "name": "365 Bridgewater NJ",
            "status": "unknown",
            "state": "NJ",
            "city": "Bridgewater",
            "address": "999 Frontier Road",
            "longitude": -74.5738875019825,
            "latitude": 40.58144235,
            "location_precision": "footprint",
            "source_count": 2,
            "source_date": "2026-02-09",
            "mapped": true,
            "distance_km": 4.056732764010193
          },
          {
            "id": "datacenter:dc_65bee66017a015677d8d",
            "project_id": "dc_65bee66017a015677d8d",
            "name": "365 Data Centers Bridgewater",
            "operator": "365 Data Centers",
            "status": "operating",
            "state": "NJ",
            "city": "Bridgewater",
            "address": "999 Frontier Road",
            "longitude": -74.5738875,
            "latitude": 40.5814424,
            "location_precision": "exact",
            "operational_mw": 2.3,
            "source_count": 1,
            "source_date": "2026-09-14",
            "mapped": true,
            "distance_km": 4.056737459746343
          },
          {
            "id": "datacenter:dc_e142953338a121f88493",
            "project_id": "dc_e142953338a121f88493",
            "name": "Digital Realty Somerset (650 Randolph Road)",
            "operator": "Digital Realty",
            "status": "operating",
            "state": "NJ",
            "city": "Franklin Township (Somerset)",
            "longitude": -74.55552023570036,
            "latitude": 40.53772515,
            "location_precision": "footprint",
            "source_count": 3,
            "source_date": "2026-07-23",
            "mapped": true,
            "distance_km": 4.113222207800883
          }
        ],
        "truncated": true,
        "note": "Straight-line distance to the reported project point; inspect location_precision. Projects merge supported source matches, not every nearby building. Approximate locations do not identify a parcel. Reported IT load, facility power, planned capacity and estimates remain separate source claims. No record or unknown status does not establish absence or inactivity."
      },
      "provenance": [
        {
          "dataset": "datacenters",
          "as_of": "2026-11-02",
          "data_version": "20261102T123021962884Z"
        }
      ]
    }
  },
  "credits": {
    "charged": 2,
    "refunded": 0
  }
}

2. Add value and sale fields

/v1/enrich returns the fields you choose for up to 25 parcels per request; here the parcel 34035-2a9ee94a1c60fe967cd0. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"34035-2a9ee94a1c60fe967cd0"}],"fields":["identity","value","sale"]}' \
  https://api.korzy.co/v1/enrich

3. Fetch the record again by ID

/v1/records/{id} returns the stored parcel's full record, without owner fields. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  https://api.korzy.co/v1/records/34035-2a9ee94a1c60fe967cd0

JavaScript

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("34035-2a9ee94a1c60fe967cd0")}`, {
  headers: { Authorization: `Bearer ${process.env.KORZY_API_KEY}` },
});
if (!response.ok) throw new Error(`Korzy API ${response.status}`);
const { record } = await response.json();
console.log(record.parceladdr, record.usedesc);

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. A /v1/lookup with the datacenters section lists projects within 10 km of any address or 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%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

More featured counties

Middlesex County, NJBorders Somerset County · about 280,000 parcels
Bergen County, NJabout 300,000 parcels
Hudson County, NJabout 150,000 parcels
Monmouth County, NJabout 260,000 parcels
Passaic County, NJabout 130,000 parcels

All featured New Jersey counties

Build on Somerset County parcel data

Lookups, enrichment and records work the same in every county Korzy covers. Credits are shared across parcels, utilities, environment, logistics, power, grid, data-center and terrain sections.

Get an API key See pricing API reference Use cases for parcel and infrastructure data