Northampton County, PA parcel and infrastructure data API

Parcel coverage in Northampton County

About 120,000 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. 96% of Northampton County records carry an owner name.

Infrastructure in and around Northampton County

Example requests for Northampton 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 2500 LIBERTY DR, NORTHAMPTON, 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":"2500 LIBERTY DR, NORTHAMPTON, PA","sections":["utilities"]}' \
  https://api.korzy.co/v1/lookup

import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "2500 LIBERTY DR, NORTHAMPTON, 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": -75.48038073443087,
    "latitude": 40.70103675,
    "address": "2500 LIBERTY DR, NORTHAMPTON",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "42095-2ff950d60c16c9b71a62",
        "korzy_id": "42095-2ff950d60c16c9b71a62",
        "parcelid": "L4 9 8 2 0501",
        "parceladdr": "2500 LIBERTY DR",
        "parcelcity": "NORTHAMPTON",
        "situs_zip": "18067",
        "statefp": "42",
        "geoid": "42095",
        "longitude": -75.48038073443087,
        "latitude": 40.70103675,
        "land_use_code": "700",
        "taxacres": 85.2,
        "totalvalue": 146712200,
        "land_value_usd": 4073600,
        "improvement_value_usd": 142638600,
        "assessed_value_usd": 26701600,
        "saledate": "2018-04-09",
        "saleamt": 1,
        "updated": "2026-10-30"
      }
    ],
    "truncated": false
  },
  "sections": {
    "utilities": {
      "status": "ok",
      "data": {
        "treatment_plants": [
          {
            "id": "utility:treatment:11190",
            "feature_id": "treatment:11190",
            "name": "NORTHAMPTON BORO STP",
            "distance_km": 2.144951361137919
          },
          {
            "id": "utility:treatment:11211",
            "feature_id": "treatment:11211",
            "name": "CLARKS SUMMIT / S ABINGTON STP",
            "distance_km": 5.271255282845139
          },
          {
            "id": "utility:treatment:17111",
            "feature_id": "treatment:17111",
            "name": "LEHIGH TWP - PENNSVILLE STP",
            "distance_km": 5.484441112901952
          }
        ],
        "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 42095-2ff950d60c16c9b71a62, 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":"42095-2ff950d60c16c9b71a62"}],"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/42095-2ff950d60c16c9b71a62

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("42095-2ff950d60c16c9b71a62")}`, {
  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);

Northampton County data questions

How many parcels in Northampton County include year built?

About 100,000 of about 120,000 parcel records (83%) include year built.

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

Yes. 96% of Northampton 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 Northampton County?

Korzy tracks 2 data-center projects in Northampton County: 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 Northampton County?

9 operable power plants in Northampton County total about 3,900 MW of nameplate capacity, mainly natural gas, battery and pumped storage and oil.

Which water systems serve Northampton County?

Service areas of about 50 community water systems cover about 35% of Northampton County, and sewer service areas cover about 32%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

More featured counties

• Montgomery County, PAabout 310,000 parcels
• Allegheny County, PAabout 590,000 parcels
• Philadelphia County, PAabout 580,000 parcels
• Westmoreland County, PAabout 210,000 parcels
• York County, PAabout 180,000 parcels

All featured Pennsylvania counties