Westmoreland County, PA parcel and infrastructure data API

Parcel coverage in Westmoreland County

About 210,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from October 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:

Owner name and mailing address are returned with include_owner=true, which doubles a request's cost: a parcel record costs 2 credits instead of 1. 82% of Westmoreland County records carry an owner name.

Infrastructure in and around Westmoreland County

Example requests for Westmoreland 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 201 N 1ST ST, JEANNETTE, PA 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=201 N 1ST ST, JEANNETTE, PA' \
  https://api.korzy.co/api/search

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "201 N 1ST ST, JEANNETTE, PA"},
    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"])

{
  "results": [
    {
      "korzy_id": "42129-514efd80d0db32229bdc",
      "address": "201 N 1ST ST",
      "city": "JEANNETTE",
      "postcode": "15644",
      "county": "Westmoreland",
      "statefp": "42",
      "longitude": -79.61193906036311,
      "latitude": 40.329153399999996,
      "match_type": "exact",
      "parcelid": "14-02-09-0-442",
      "parceladdr": "201 N 1ST ST",
      "parcelcity": "JEANNETTE",
      "situs_zip": "15644",
      "usedesc": "   ",
      "land_use_code": "C",
      "yearbuilt": 2012,
      "bldgsqft": 7480,
      "taxacres": 0,
      "totalvalue": 107080,
      "saledate": "2021-06-02",
      "saleamt": 1,
      "updated": "2026-10-30",
      "geoid": "42129"
    }
  ],
  "truncated": false
}

With include_owner=true (2 credits) the record adds owner fields, shown here as placeholders:

{
  "owner_name": "EXAMPLE HOLDINGS LLC",
  "owner_mailing_address": "100 EXAMPLE ST, SAMPLE CITY, ST 00000"
}

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, 42129-514efd80d0db32229bdc, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-79.611939' \
  --data-urlencode 'latitude=40.329153' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point

const params = new URLSearchParams({"longitude": "-79.611939", "latitude": "40.329153", "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 water and sewer service

/api/utilities/context returns the water and sewer service areas at the point and the nearest treatment plants. 1 credit.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-79.611939' \
  --data-urlencode 'latitude=40.329153' \
  https://api.korzy.co/api/utilities/context

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/utilities/context",
    params={"longitude": "-79.611939", "latitude": "40.329153"},
    headers={"Authorization": f"Bearer {os.environ['KORZY_API_KEY']}"},
    timeout=30,
)
response.raise_for_status()
matches = response.json()["matches"]
print([area["name"] for area in matches["water"]])

{
  "longitude": -79.611939,
  "latitude": 40.329153,
  "matches": {
    "water": [
      {
        "feature_id": "water:31335",
        "name": "MAWC SWEENEY PLANT",
        "boundary_basis": "System Sourced"
      }
    ],
    "sewer": [
      {
        "feature_id": "sewer:13865",
        "name": "JEANNETTE CITY STP",
        "boundary_basis": "Modeled"
      }
    ]
  },
  "nearby_treatment": [
    {
      "feature_id": "treatment:16922",
      "name": "JEANNETTE CITY STP",
      "distance_km": 2.4470744911682747
    },
    {
      "feature_id": "treatment:1",
      "name": "HEMPFIELD TWP MA - DARRAGH STP",
      "distance_km": 2.586251467363626
    }
  ]
}

Westmoreland County data questions

How many parcels in Westmoreland County include year built?

About 210,000 of about 210,000 parcel records (99%) include year built.

Does the Korzy API return owner names for Westmoreland County parcels?

Yes. 82% of Westmoreland County parcel records carry an owner name. Add include_owner=true to a point, search or parcel-record request; it doubles the request's cost, so a single parcel record costs 2 credits.

How many data-center projects are in Westmoreland County?

Korzy tracks 1 data-center project in Westmoreland County: 1 proposed. /api/datacenters/context lists projects within 10 km of any point.

How much power generation is in Westmoreland County?

4 operable power plants in Westmoreland County total about 1,200 MW of nameplate capacity, mainly natural gas, battery and pumped storage and solar.

Which water systems serve Westmoreland County?

Service areas of about 35 community water systems cover about 68% of Westmoreland County, and sewer service areas cover about 36%. /api/utilities/context returns the water and sewer matches at a point.

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