Prince William County, VA parcel and infrastructure data API

Parcel coverage in Prince William County

About 160,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from August 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:

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

Infrastructure in and around Prince William County

Example requests for Prince William 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 12869 GALVESTON CT, Prince William County, VA 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":"12869 GALVESTON CT, Prince William County, VA","sections":["datacenters"]}' \
  https://api.korzy.co/v1/lookup

import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "12869 GALVESTON CT, Prince William County, VA", "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"])

{
  "location": {
    "longitude": -77.3629436188171,
    "latitude": 38.679333650000004,
    "address": "12869 GALVESTON CT, Prince William County",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "51153-b4728e25a1853a8c9cea",
        "korzy_id": "51153-b4728e25a1853a8c9cea",
        "parcelid": "8093-72-5347",
        "parceladdr": "12869 GALVESTON CT",
        "parcelcity": "Prince William County",
        "situs_zip": "20112",
        "statefp": "51",
        "geoid": "51153",
        "longitude": -77.3629436188171,
        "latitude": 38.679333650000004,
        "usedesc": "Nbhd Shopping Center",
        "bldgsqft": 0,
        "taxacres": 0.9926,
        "saledate": "2008-06-03",
        "updated": "2026-08-03"
      }
    ],
    "truncated": false
  },
  "sections": {
    "datacenters": {
      "status": "ok",
      "data": {
        "radius_km": 10,
        "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 51153-b4728e25a1853a8c9cea. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"51153-b4728e25a1853a8c9cea"}],"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/51153-b4728e25a1853a8c9cea

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("51153-b4728e25a1853a8c9cea")}`, {
  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);

Prince William County data questions

How many parcels in Prince William County include building size?

About 110,000 of about 160,000 parcel records (69%) include building size.

Does the Korzy API return owner names for Prince William County parcels?

Prince William 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 Prince William County?

Korzy tracks about 65 data-center projects in Prince William County: 50 status not reported, 8 operating and 4 under construction. A /v1/lookup with the datacenters section lists projects within 10 km of any address or point.

How much power generation is in Prince William County?

4 operable power plants in Prince William County total about 730 MW of nameplate capacity, mainly natural gas, battery and pumped storage and oil.

Which water systems serve Prince William County?

Service areas of about 15 community water systems cover about 35% of Prince William County, and sewer service areas cover about 73%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

More featured counties

• Fairfax County, VABorders Prince William County · about 370,000 parcels
• Fauquier County, VABorders Prince William County · about 36,000 parcels
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