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Montgomery County, PA parcel and infrastructure data API

Korzy has about 310,000 parcel records for Montgomery County, Pennsylvania, with source updates through November 2026. Nearly every record carries owner names, values, last sale, land use, year built and building size. In and around the county the API also maps 9 power plants with about 2,500 MW of capacity, led by nuclear; 7 data-center projects (3 operating); 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.

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Parcel coverage in Montgomery County

About 310,000 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:

FieldCoverageShare
Situs addressNearly all · 99%
Owner nameNearly all · 96%
Assessed or market valueNearly all · 99%
Year builtNearly all · 99%
Building sizeNearly all · 96%
Last saleNearly all · 99%
Land useNearly all · 96%
ZoningNearly all · 96%

Owner name and mailing address are returned by /v1/enrich with the owner group, at 2 credits per parcel instead of 1 credit. 96% of Montgomery County records carry an owner name.

Infrastructure in and around Montgomery County

Power plants

9 operable plants with about 2,500 MW of nameplate capacity; largest by capacity: nuclear, natural gas, oil. Proposed generators add 2 MW.

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

Substations and transmission

About 65 in-service substations, about 20 rated 230 kV or higher.

About 320 miles of transmission lines: about 10 mi at under 100 kV; about 35 mi at 100–161 kV; about 160 mi at 220–287 kV; about 60 mi at 500 kV.

Water and sewer service

Service areas of about 45 community water systems cover about 67% of the county.

Sewer service areas of about 50 systems cover about 35%.

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

Data-center projects

7 tracked projects: 3 operating, 3 proposed, 1 status not reported. Reported planned capacity: about 750 MW.

Within 10 km: /v1/lookup section datacenters

Flood zones and wetlands

Special flood hazard areas cover about 7% 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 150 miles of active rail, about 110 of it main line
  • About 60 miles of national freight network highway
  • 1 port area with reported cargo tonnage

Within 25 km: /v1/lookup section logistics

Example requests for Montgomery 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 1730 VALLEY FORGE RD, NORRISTOWN, 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":"1730 VALLEY FORGE RD, NORRISTOWN, 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": "1730 VALLEY FORGE RD, NORRISTOWN, 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": -75.34912648112679,
    "latitude": 40.19493985003383,
    "address": "1730 VALLEY FORGE RD, NORRISTOWN",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "42091-1d4534c01a90afe37627",
        "korzy_id": "42091-1d4534c01a90afe37627",
        "parcelid": "67018 009",
        "parceladdr": "1730 VALLEY FORGE RD",
        "parcelcity": "NORRISTOWN",
        "situs_zip": "19403",
        "statefp": "42",
        "geoid": "42091",
        "longitude": -75.34912648112679,
        "latitude": 40.19493985003383,
        "land_use_code": "1132",
        "zoning_code": "C",
        "yearbuilt": 1870,
        "bldgsqft": 5424,
        "taxacres": 2.450000047683716,
        "totalvalue": 185000,
        "assessed_value_usd": 185000,
        "market_value_usd": 185000,
        "saledate": "2024-05-30",
        "saleamt": 679000,
        "updated": "2026-11-01"
      }
    ],
    "truncated": false
  },
  "sections": {
    "datacenters": {
      "status": "ok",
      "data": {
        "radius_km": 10,
        "projects": [
          {
            "id": "datacenter:dc_2b2cf7d235862a599878",
            "project_id": "dc_2b2cf7d235862a599878",
            "name": "Lumen Norristown",
            "operator": "Lumen Technologies",
            "status": "operating",
            "state": "PA",
            "city": "Norristown",
            "longitude": -75.40844538604114,
            "latitude": 40.12713025,
            "location_precision": "footprint",
            "source_count": 3,
            "source_date": "2026-07-23",
            "mapped": true,
            "distance_km": 9.069916092763231
          }
        ],
        "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 owner and sale fields

/v1/enrich returns the fields you choose for up to 25 parcels per request; here the parcel 42091-1d4534c01a90afe37627, 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":"42091-1d4534c01a90afe37627"}],"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 $KORZY_API_KEY" \
  https://api.korzy.co/v1/records/42091-1d4534c01a90afe37627
JavaScript
const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("42091-1d4534c01a90afe37627")}`, {
  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);

Montgomery County data questions

How many parcels in Montgomery County include year built?
About 310,000 of about 310,000 parcel records (99%) include year built.
Does the Korzy API return owner names for Montgomery County parcels?
Yes. 96% of Montgomery 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 Montgomery County?
Korzy tracks 7 data-center projects in Montgomery County: 3 operating, 3 proposed and 1 status not reported. A /v1/lookup with the datacenters section lists projects within 10 km of any address or point.
How much power generation is in Montgomery County?
9 operable power plants in Montgomery County total about 2,500 MW of nameplate capacity, mainly nuclear, natural gas and oil.
Which water systems serve Montgomery County?
Service areas of about 45 community water systems cover about 67% of Montgomery County, and sewer service areas cover about 35%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

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Build on Montgomery 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 keySee pricingAPI referenceUse cases for parcel and infrastructure data