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

Owner name and mailing address are returned by /v1/enrich with the owner group, at 2 credits per parcel instead of 1 credit. 82% of Westmoreland County records carry an owner name.

Infrastructure in and around Westmoreland County

Example requests for Westmoreland 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 its water and sewer service

/v1/lookup matches 206 N FIRST ST, JEANNETTE, PA and returns the parcel's korzy_id and record, plus the water and sewer service areas at the parcel and the nearest treatment plants. 2 credits.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"address":"206 N FIRST ST, JEANNETTE, PA","sections":["utilities"]}' \
  https://api.korzy.co/v1/lookup

import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "206 N FIRST ST, JEANNETTE, PA", "sections": ["utilities"]},
    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"]["utilities"]["status"])

{
  "location": {
    "longitude": -79.61116535379351,
    "latitude": 40.32897965,
    "address": "206 N FIRST ST, JEANNETTE",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "42129-ecf12c8ad7f358ee223f",
        "korzy_id": "42129-ecf12c8ad7f358ee223f",
        "parcelid": "14-02-09-0-524",
        "parceladdr": "206 N FIRST ST",
        "parcelcity": "JEANNETTE",
        "situs_zip": "15235",
        "statefp": "42",
        "geoid": "42129",
        "longitude": -79.61116535379351,
        "latitude": 40.32897965,
        "usedesc": "   ",
        "land_use_code": "C",
        "yearbuilt": 1922,
        "bldgsqft": 5208,
        "taxacres": 0,
        "totalvalue": 4550,
        "saledate": "2020-06-02",
        "saleamt": 17000,
        "updated": "2026-10-30"
      }
    ],
    "truncated": false
  },
  "sections": {
    "utilities": {
      "status": "ok",
      "data": {
        "water": [
          {
            "id": "utility:water:31335",
            "feature_id": "water:31335",
            "name": "MAWC SWEENEY PLANT",
            "boundary_basis": "System Sourced"
          }
        ],
        "treatment_plants": [
          {
            "id": "utility:treatment:16922",
            "feature_id": "treatment:16922",
            "name": "JEANNETTE CITY STP",
            "distance_km": 2.51243026512867
          },
          {
            "id": "utility:treatment:1",
            "feature_id": "treatment:1",
            "name": "HEMPFIELD TWP MA - DARRAGH STP",
            "distance_km": 2.5341856586071736
          },
          {
            "id": "utility:treatment:16888",
            "feature_id": "treatment:16888",
            "name": "GREATER GREENSBURG STP",
            "distance_km": 8.086732328959886
          }
        ],
        "truncated": {
          "water": false,
          "sewer": false
        }
      },
      "provenance": [
        {
          "dataset": "water",
          "data_version": "63b7c1c3-9661-4fed-a59f-ddbfff80c2e4"
        },
        {
          "dataset": "sewer",
          "data_version": "63b7c1c3-9661-4fed-a59f-ddbfff80c2e4"
        },
        {
          "dataset": "treatment",
          "data_version": "63b7c1c3-9661-4fed-a59f-ddbfff80c2e4"
        }
      ]
    }
  },
  "credits": {
    "charged": 2,
    "refunded": 0
  }
}

2. Add owner and sale fields

/v1/enrich returns the fields you choose for up to 25 parcels per request; here the parcel 42129-ecf12c8ad7f358ee223f, with the owner group. 2 credits.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"42129-ecf12c8ad7f358ee223f"}],"fields":["identity","sale","owner"]}' \
  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/42129-ecf12c8ad7f358ee223f

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("42129-ecf12c8ad7f358ee223f")}`, {
  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);

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. Ask /v1/enrich for the owner group; each parcel then costs 2 credits instead of 1 credit. Lookups and records never include owner fields.

How many data-center projects are in Westmoreland County?

Korzy tracks 1 data-center project in Westmoreland County: 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 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%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

More featured counties

• Allegheny County, PABorders Westmoreland County · about 590,000 parcels
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