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Passaic County, NJ parcel and infrastructure data API

Korzy has about 130,000 parcel records for Passaic County, New Jersey, with source updates through July 2026. 93% include land use and 90% include values. In and around the county the API also maps 5 data-center projects (2 operating); 1 port with reported cargo; and 7 power plants with about 45 MW of capacity, led by natural gas. 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 Passaic 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 valueMost · 90%
Year builtMany · 72%
Building sizeMost · 81%
Last saleMost · 90%
Land useMost · 93%
ZoningNot published

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

Infrastructure in and around Passaic County

Power plants

7 operable plants with about 45 MW of nameplate capacity; largest by capacity: natural gas, hydro, oil. Proposed generators add 2 MW.

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

Substations and transmission

About 15 in-service substations, 5 rated 230 kV or higher.

About 55 miles of transmission lines: 1 mi at under 100 kV; about 35 mi at 220–287 kV; about 15 mi at 500 kV.

Water and sewer service

Service areas of about 45 community water systems cover about 41% of the county.

Sewer service areas of about 15 systems cover about 36%.

At a point: /api/utilities/context

Data-center projects

5 tracked projects: 2 operating, 3 status not reported.

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

Grid capacity data

3 utility-published grid capacity layers cover parts of Passaic County, including load headroom, capacity bands.

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

Flood zones and wetlands

Special flood hazard areas cover about 12% of the county on the current federal flood maps, published September 2026.

Mapped wetlands cover about 6%.

Rail, ports and freight

  • About 40 miles of active rail, about 30 of it main line
  • About 10 miles of national freight network highway
  • 1 port area with reported cargo tonnage

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

Example requests for Passaic 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 32 MARKET ST, PATERSON, 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=32 MARKET ST, PATERSON, NJ' \
  https://api.korzy.co/api/search
Python
import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "32 MARKET ST, PATERSON, 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": "34031-847c171fcc9c48b95379",
      "address": "32 MARKET ST",
      "city": "PATERSON",
      "postcode": "07505",
      "county": "PASSAIC",
      "statefp": "34",
      "longitude": -74.176450460679,
      "latitude": 40.91489615012246,
      "match_type": "exact",
      "parcelid": "1608_4703_3",
      "parceladdr": "32 MARKET ST",
      "parcelcity": "PATERSON",
      "situs_zip": "07505",
      "usedesc": "Commercial",
      "land_use_code": "4A",
      "yearbuilt": 1930,
      "bldgsqft": 8272,
      "taxacres": 0.094,
      "totalvalue": 818400,
      "land_value_usd": 105500,
      "improvement_value_usd": 557400,
      "saledate": "2023-03-30",
      "saleamt": 1815000,
      "updated": "2025-10-28",
      "geoid": "34031"
    }
  ],
  "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, 34031-847c171fcc9c48b95379, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-74.17645' \
  --data-urlencode 'latitude=40.914896' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point
JavaScript
const params = new URLSearchParams({"longitude": "-74.17645", "latitude": "40.914896", "limit": "5"});
const response = await fetch(`https://api.korzy.co/api/query/point?${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=-74.17645' \
  --data-urlencode 'latitude=40.914896' \
  --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": "-74.17645", "latitude": "40.914896", "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_d88c4e05cc32b0c1d55b",
      "name": "CyrusOne NYM2 (Totowa)",
      "operator": "CyrusOne",
      "status": "operating",
      "city": "Totowa",
      "state": "NJ",
      "longitude": -74.2422211,
      "latitude": 40.9072095,
      "location_precision": "exact",
      "operational_mw": 6,
      "distance_km": 5.592648037193487
    },
    {
      "project_id": "dc_311fd0cb0e61e99f170e",
      "name": "Digital Realty Clifton Campus",
      "operator": "Digital Realty",
      "status": "operating",
      "city": "Clifton",
      "state": "NJ",
      "longitude": -74.160393,
      "latitude": 40.862137,
      "location_precision": "representative",
      "distance_km": 6.019818236839307
    },
    {
      "project_id": "dc_54fe79703661c10c19b5",
      "name": "Credit Suisse: Clifton Data Center",
      "status": "unknown",
      "state": "NJ",
      "longitude": -74.14040179477668,
      "latitude": 40.83324265,
      "location_precision": "footprint",
      "distance_km": 9.571990654903248
    }
  ],
  "radius_km": 10,
  "limit": 3,
  "truncated": true
}

Passaic County data questions

How many parcels in Passaic County include year built?
About 94,000 of about 130,000 parcel records (72%) include year built.
Does the Korzy API return owner names for Passaic County parcels?
Passaic 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 Passaic County?
Korzy tracks 5 data-center projects in Passaic County: 3 status not reported and 2 operating. /api/datacenters/context lists projects within 10 km of any point.
How much power generation is in Passaic County?
7 operable power plants in Passaic County total about 45 MW of nameplate capacity, mainly natural gas, hydro and oil.
Which water systems serve Passaic County?
Service areas of about 45 community water systems cover about 41% of Passaic County, and sewer service areas cover about 36%. /api/utilities/context returns the water and sewer matches at a point.

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Build on Passaic 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