Hudson County, NJ parcel and infrastructure data API
Korzy has about 150,000 parcel records for Hudson County, New Jersey, with source updates through August 2026. Nearly every record carries values, last sale and land use; 85% include year built. In and around the county the API also maps about 20 data-center projects (15 operating); about 20 power plants with about 1,300 MW of capacity, led by natural gas; and 1 port with reported cargo. Look up any parcel by address or coordinates, then check nearby data-center projects, utilities and grid context at the same point.
Parcel coverage in Hudson County
About 150,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from August 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 · 97% | |
| Owner name | Not published | |
| Assessed or market value | Nearly all · 97% | |
| Year built | Most · 85% | |
| Building size | Not published | |
| Last sale | Nearly all · 97% | |
| Land use | Nearly all · 95% | |
| Zoning | Not published |
Hudson County records do not include owner names. See pricing for credit costs.
Infrastructure in and around Hudson County
Power plants
About 20 operable plants with about 1,300 MW of nameplate capacity; largest by capacity: natural gas, solar, wind. Proposed generators add 2 MW.
Within 50 km: /v1/lookup section power; details: /v1/records/{id}
Substations and transmission
About 25 in-service substations, 9 rated 230 kV or higher.
About 70 miles of transmission lines: 2 mi at 100–161 kV; about 25 mi at 220–287 kV; about 25 mi at 345 kV.
Water and sewer service
Service areas of about 10 community water systems cover about 90% of the county.
Sewer service areas of 6 systems cover about 84%.
At an address or point: /v1/lookup section utilities
Data-center projects
About 20 tracked projects: 15 operating, 1 proposed, 4 status not reported. Reported operating capacity: about 80 MW.
Within 10 km: /v1/lookup section datacenters
Grid capacity data
1 utility-published grid capacity layer cover parts of Hudson County, including capacity bands.
Nearby records: /v1/lookup section grid
Flood zones and wetlands
Special flood hazard areas cover about 45% of the county on the current federal flood maps, published September 2026.
Mapped wetlands cover about 5%.
At an address or point: /v1/lookup section environment
Rail, ports and freight
- About 200 miles of active rail, about 55 of it main line
- About 20 miles of national freight network highway
- 1 port area with reported cargo tonnage
- 4 intermodal rail terminals
Within 25 km: /v1/lookup section logistics
Example requests for Hudson 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 57 HUTTON ST., NJ 07030 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":"57 HUTTON ST., NJ 07030","sections":["datacenters"]}' \
https://api.korzy.co/v1/lookupPython
import os
import requests
response = requests.post(
"https://api.korzy.co/v1/lookup",
json={"address": "57 HUTTON ST., NJ 07030", "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": -74.04815056138648,
"latitude": 40.743644960637155,
"address": "57 HUTTON ST.",
"match_type": "exact"
},
"parcels": {
"records": [
{
"id": "34017-a9cd349942bced3c79a0",
"korzy_id": "34017-a9cd349942bced3c79a0",
"parcelid": "0906 4406 9",
"parceladdr": "57 HUTTON ST.",
"situs_zip": "07030",
"statefp": "34",
"geoid": "34017",
"longitude": -74.04815056138648,
"latitude": 40.743644960637155,
"land_use_code": "4C",
"yearbuilt": 1880,
"taxacres": 0,
"totalvalue": 946800,
"land_value_usd": 315000,
"improvement_value_usd": 631800,
"saledate": "2008-06-19",
"saleamt": 545000,
"updated": "2025-10-29"
}
],
"truncated": false
},
"sections": {
"datacenters": {
"status": "ok",
"data": {
"radius_km": 10,
"projects": [
{
"id": "datacenter:dc_a70d7abc8fe8739c2cd3",
"project_id": "dc_a70d7abc8fe8739c2cd3",
"name": "Cyxtera (Digital Realty Trust) Citibank Data Center",
"operator": "Cyxtera",
"status": "unknown",
"state": "NJ",
"city": "Weehawken",
"address": "1919 Park Avenue",
"longitude": -74.02574169622213,
"latitude": 40.76074645,
"location_precision": "footprint",
"source_count": 2,
"source_date": "2026-02-09",
"mapped": true,
"distance_km": 2.679391455087436
},
{
"id": "datacenter:dc_726fb0fe25dd165ac84d",
"project_id": "dc_726fb0fe25dd165ac84d",
"name": "Centersquare EWR2 (Weehawken)",
"operator": "Centersquare",
"status": "operating",
"state": "NJ",
"city": "Weehawken",
"address": "300 J F Kennedy Boulevard East",
"longitude": -74.0260271,
"latitude": 40.7615218,
"location_precision": "approximate",
"operational_mw": 45.7,
"source_count": 1,
"source_date": "2026-10-09",
"mapped": true,
"distance_km": 2.7247464428448236
},
{
"id": "datacenter:dc_13b9984deb8b2355c6e5",
"project_id": "dc_13b9984deb8b2355c6e5",
"name": "Digital Realty New York EWR10",
"operator": "Digital Realty",
"status": "operating",
"state": "NJ",
"city": "Weehawken",
"address": "300 John F. Kennedy Boulevard East",
"longitude": -74.025027622146,
"latitude": 40.76184015,
"location_precision": "footprint",
"source_count": 3,
"source_date": "2026-07-23",
"mapped": true,
"distance_km": 2.8083954923279935
}
],
"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 34017-a9cd349942bced3c79a0. 1 credit.
curl --fail-with-body -sS \
-H "Authorization: Bearer $KORZY_API_KEY" \
-H "Content-Type: application/json" \
-d '{"items":[{"korzy_id":"34017-a9cd349942bced3c79a0"}],"fields":["identity","value","sale"]}' \
https://api.korzy.co/v1/enrich3. 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 $KORZY_API_KEY" \
https://api.korzy.co/v1/records/34017-a9cd349942bced3c79a0JavaScript
const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("34017-a9cd349942bced3c79a0")}`, {
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);Hudson County data questions
- How many parcels in Hudson County include year built?
- About 130,000 of about 150,000 parcel records (85%) include year built.
- Does the Korzy API return owner names for Hudson County parcels?
- Hudson 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 Hudson County?
- Korzy tracks about 20 data-center projects in Hudson County: 15 operating, 4 status not reported and 1 proposed. A /v1/lookup with the datacenters section lists projects within 10 km of any address or point.
- How much power generation is in Hudson County?
- About 20 operable power plants in Hudson County total about 1,300 MW of nameplate capacity, mainly natural gas, solar and wind.
- Which water systems serve Hudson County?
- Service areas of about 10 community water systems cover about 90% of Hudson County, and sewer service areas cover about 84%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.
More featured counties
- Bergen County, NJBorders Hudson County · about 300,000 parcels
- New York County, NYBorders Hudson County · about 180,000 parcels
- Middlesex County, NJabout 280,000 parcels
- Somerset County, NJabout 130,000 parcels
- Monmouth County, NJabout 260,000 parcels
- Passaic County, NJabout 130,000 parcels
Build on Hudson 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.