How many parcels in Allegheny County include year built?

About 450,000 of about 590,000 parcel records (76%) include year built.

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

Allegheny 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 Allegheny County?

Korzy tracks 7 data-center projects in Allegheny County: 4 operating, 1 permitted 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 Allegheny County?

9 operable power plants in Allegheny County total about 1,100 MW of nameplate capacity, mainly natural gas, battery and pumped storage and other fuels.

Which water systems serve Allegheny County?

Service areas of about 45 community water systems cover about 87% of Allegheny County, and sewer service areas cover about 89%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

Allegheny County, PA parcel and infrastructure data API

Korzy has about 590,000 parcel records for Allegheny County, Pennsylvania, with source updates through November 2026. Nearly every record carries values, last sale and land use; 76% include year built and 76% include building size. In and around the county the API also maps about 650 miles of active rail; 7 data-center projects (4 operating); and 9 power plants with about 1,100 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 Allegheny County

About 590,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from November 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	Nearly all · 98%
Year built	Most · 76%
Building size	Most · 76%
Last sale	Nearly all · 97%
Land use	Nearly all · 99%
Zoning	Not published

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

Infrastructure in and around Allegheny County

Power plants

9 operable plants with about 1,100 MW of nameplate capacity; largest by capacity: natural gas, battery and pumped storage, other fuels. Proposed generators add about 70 MW.

Within 50 km: /v1/lookup section power; details: /v1/records/{id}

Substations and transmission

About 120 in-service substations, 5 rated 230 kV or higher.

About 650 miles of transmission lines: about 540 mi at 100–161 kV; about 60 mi at 345 kV.

Water and sewer service

Service areas of about 45 community water systems cover about 87% of the county.

Sewer service areas of about 50 systems cover about 89%.

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

Data-center projects

7 tracked projects: 4 operating, 1 permitted, 1 proposed, 1 status not reported. Reported operating capacity: about 15 MW. Reported planned capacity: about 200 MW.

Within 10 km: /v1/lookup section datacenters

Flood zones and wetlands

Special flood hazard areas cover about 5% of the county on the current federal flood maps, published October 2026.

Mapped wetlands cover about 1%.

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

Rail, ports and freight

About 650 miles of active rail, about 330 of it main line
About 110 miles of national freight network highway
1 port area with reported cargo tonnage
2 intermodal rail terminals

Within 25 km: /v1/lookup section logistics

Example requests for Allegheny 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 3058 BRERETON ST, PITTSBURGH, PA 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":"3058 BRERETON ST, PITTSBURGH, PA","sections":["datacenters"]}' \
  https://api.korzy.co/v1/lookup

Python

import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "3058 BRERETON ST, PITTSBURGH, PA", "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": -79.96789624751156,
    "latitude": 40.4564017,
    "address": "3058 BRERETON ST, PITTSBURGH",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "42003-705eef198b4db4962a40",
        "korzy_id": "42003-705eef198b4db4962a40",
        "parcelid": "0025M00183000001",
        "parceladdr": "3058 BRERETON ST",
        "parcelcity": "PITTSBURGH",
        "situs_zip": "15219",
        "statefp": "42",
        "geoid": "42003",
        "longitude": -79.96789624751156,
        "latitude": 40.4564017,
        "usedesc": "CHURCHES, PUBLIC WORSHIP",
        "land_use_code": "685",
        "yearbuilt": 1900,
        "bldgsqft": 5172,
        "taxacres": 0.6662764003673095,
        "totalvalue": 138220,
        "land_value_usd": 34000,
        "improvement_value_usd": 150300,
        "market_value_usd": 184300,
        "saledate": "1919-07-26",
        "saleamt": 0,
        "updated": "2026-11-01"
      }
    ],
    "truncated": false
  },
  "sections": {
    "datacenters": {
      "status": "ok",
      "data": {
        "radius_km": 10,
        "projects": [
          {
            "id": "datacenter:dc_27fa2f9c1c2067ad798d",
            "project_id": "dc_27fa2f9c1c2067ad798d",
            "name": "DataBank PIT1 (Downtown Pittsburgh)",
            "operator": "DataBank",
            "status": "operating",
            "state": "PA",
            "city": "Pittsburgh",
            "address": "100 S Commons",
            "longitude": -80.0086,
            "latitude": 40.4479,
            "location_precision": "approximate",
            "operational_mw": 1.9,
            "source_count": 1,
            "source_date": "2026-08-17",
            "mapped": true,
            "distance_km": 3.5714796709201635
          },
          {
            "id": "datacenter:dc_8752feb7a2431aa4e87a",
            "project_id": "dc_8752feb7a2431aa4e87a",
            "name": "Expedient PIT1 (Green Tree / Pittsburgh South)",
            "operator": "Expedient",
            "status": "operating",
            "state": "PA",
            "city": "Pittsburgh",
            "address": "810 Parish Street",
            "longitude": -80.04250428335553,
            "latitude": 40.42736825,
            "location_precision": "footprint",
            "operational_mw": 1.8,
            "source_count": 3,
            "source_date": "2026-07-23",
            "mapped": true,
            "distance_km": 7.091318409185994
          },
          {
            "id": "datacenter:dc_2e25cbef685be101145e",
            "project_id": "dc_2e25cbef685be101145e",
            "name": "Stowe Township Data Center (former railcar plant)",
            "operator": "SunCap Industries",
            "status": "proposed",
            "state": "PA",
            "city": "Stowe Township",
            "longitude": -80.064,
            "latitude": 40.469,
            "location_precision": "approximate",
            "source_count": 1,
            "source_date": "2026-08-17",
            "mapped": true,
            "distance_km": 8.25021716559191
          }
        ],
        "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 42003-705eef198b4db4962a40. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"42003-705eef198b4db4962a40"}],"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/42003-705eef198b4db4962a40

JavaScript

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("42003-705eef198b4db4962a40")}`, {
  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);

Allegheny County data questions

How many parcels in Allegheny County include year built?: About 450,000 of about 590,000 parcel records (76%) include year built.
Does the Korzy API return owner names for Allegheny County parcels?: Allegheny 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 Allegheny County?: Korzy tracks 7 data-center projects in Allegheny County: 4 operating, 1 permitted 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 Allegheny County?: 9 operable power plants in Allegheny County total about 1,100 MW of nameplate capacity, mainly natural gas, battery and pumped storage and other fuels.
Which water systems serve Allegheny County?: Service areas of about 45 community water systems cover about 87% of Allegheny County, and sewer service areas cover about 89%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

More featured counties

Westmoreland County, PABorders Allegheny County · about 210,000 parcels
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Philadelphia County, PAabout 580,000 parcels
Northampton County, PAabout 120,000 parcels
York County, PAabout 180,000 parcels

All featured Pennsylvania counties

Build on Allegheny 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