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

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.

Get an API key Read the API docs

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 /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	Most · 90%
Year built	Many · 72%
Building size	Most · 81%
Last sale	Most · 90%
Land use	Most · 93%
Zoning	Not 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.

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

Data-center projects

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

Within 10 km: /v1/lookup section datacenters

Grid capacity data

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

Nearby records: /v1/lookup section grid

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%.

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

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: /v1/lookup section logistics

Example requests for Passaic 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 32 MARKET ST, PATERSON, 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":"32 MARKET ST, PATERSON, 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": "32 MARKET ST, PATERSON, 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": -74.176450460679,
    "latitude": 40.91489615012246,
    "address": "32 MARKET ST, PATERSON",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "34031-847c171fcc9c48b95379",
        "korzy_id": "34031-847c171fcc9c48b95379",
        "parcelid": "1608_4703_3",
        "parceladdr": "32 MARKET ST",
        "parcelcity": "PATERSON",
        "situs_zip": "07505",
        "statefp": "34",
        "geoid": "34031",
        "longitude": -74.176450460679,
        "latitude": 40.91489615012246,
        "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"
      }
    ],
    "truncated": false
  },
  "sections": {
    "datacenters": {
      "status": "ok",
      "data": {
        "radius_km": 10,
        "projects": [
          {
            "id": "datacenter:dc_d88c4e05cc32b0c1d55b",
            "project_id": "dc_d88c4e05cc32b0c1d55b",
            "name": "CyrusOne NYM2 (Totowa)",
            "operator": "CyrusOne",
            "status": "operating",
            "state": "NJ",
            "city": "Totowa",
            "address": "50 Madison Road",
            "longitude": -74.2422211,
            "latitude": 40.9072095,
            "location_precision": "exact",
            "operational_mw": 6,
            "source_count": 1,
            "source_date": "2026-10-09",
            "mapped": true,
            "distance_km": 5.592612324586883
          },
          {
            "id": "datacenter:dc_311fd0cb0e61e99f170e",
            "project_id": "dc_311fd0cb0e61e99f170e",
            "name": "Digital Realty Clifton Campus",
            "operator": "Digital Realty",
            "status": "operating",
            "state": "NJ",
            "city": "Clifton",
            "longitude": -74.160393,
            "latitude": 40.862137,
            "location_precision": "representative",
            "source_count": 1,
            "source_date": "2026-09-12",
            "mapped": true,
            "distance_km": 6.019843187569185
          },
          {
            "id": "datacenter:dc_54fe79703661c10c19b5",
            "project_id": "dc_54fe79703661c10c19b5",
            "name": "Credit Suisse: Clifton Data Center",
            "status": "unknown",
            "state": "NJ",
            "longitude": -74.14040179477668,
            "latitude": 40.83324265,
            "location_precision": "footprint",
            "source_count": 2,
            "source_date": "2026-02-09",
            "mapped": true,
            "distance_km": 9.572018752753888
          }
        ],
        "truncated": false,
        "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 34031-847c171fcc9c48b95379. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"34031-847c171fcc9c48b95379"}],"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/34031-847c171fcc9c48b95379

JavaScript

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("34031-847c171fcc9c48b95379")}`, {
  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);

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

More featured counties

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

All featured New Jersey counties

Build on Passaic 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