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Washington County, OR parcel and infrastructure data API

Korzy has about 190,000 parcel records for Washington County, Oregon, with source updates through November 2026. Nearly every record carries land use, year built and building size; 93% include values and 64% include last sale. In and around the county the API also maps about 45 data-center projects (20 operating and 2 under construction); 2 ports with reported cargo; and 5 power plants with about 100 MW of capacity, led by battery and pumped storage. 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 Washington County

About 190,000 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 · 100%
Owner nameNot published
Assessed or market valueMost · 93%
Year builtNearly all · 100%
Building sizeNearly all · 100%
Last saleMany · 64%
Land useNearly all · 100%
ZoningNot published

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

Infrastructure in and around Washington County

Power plants

5 operable plants with about 100 MW of nameplate capacity; largest by capacity: battery and pumped storage, solar, other fuels.

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

Substations and transmission

About 95 in-service substations, 9 rated 230 kV or higher.

About 390 miles of transmission lines: about 10 mi at under 100 kV; about 280 mi at 100–161 kV; about 65 mi at 220–287 kV; about 35 mi at 500 kV.

Water and sewer service

Service areas of about 30 community water systems cover about 17% of the county.

Sewer service areas of 8 systems cover about 22%.

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

Data-center projects

About 45 tracked projects: 20 operating, 2 under construction, 1 permitted, 6 proposed, 20 status not reported. Reported operating capacity: about 490 MW. Reported planned capacity: about 800 MW.

Within 10 km: /v1/lookup section datacenters

Flood zones and wetlands

Special flood hazard areas cover about 9% of the county on the current federal flood maps, published September 2026.

Mapped wetlands cover about 2%.

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

Rail, ports and freight

  • About 95 miles of active rail, about 75 of it main line
  • 7 miles of national freight network highway
  • 2 port areas with reported cargo tonnage

Within 25 km: /v1/lookup section logistics

Example requests for Washington 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 4000 SW HOCKEN AVE, BEAVERTON, OR 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":"4000 SW HOCKEN AVE, BEAVERTON, OR","sections":["datacenters"]}' \
  https://api.korzy.co/v1/lookup
Python
import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "4000 SW HOCKEN AVE, BEAVERTON, OR", "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": -122.8143052630806,
    "latitude": 45.490996100000004,
    "address": "4000 SW HOCKEN AVE, BEAVERTON",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "41067-2f1d131c8b991d4bcd82",
        "korzy_id": "41067-2f1d131c8b991d4bcd82",
        "parcelid": "1S109DC01050",
        "parceladdr": "4000 SW HOCKEN AVE",
        "parcelcity": "BEAVERTON",
        "situs_zip": "97005",
        "statefp": "41",
        "geoid": "41067",
        "longitude": -122.8143052630806,
        "latitude": 45.490996100000004,
        "usedesc": "COM",
        "land_use_code": "COM",
        "yearbuilt": 0,
        "bldgsqft": 0,
        "taxacres": 0.63,
        "totalvalue": 730030,
        "land_value_usd": 706420,
        "improvement_value_usd": 23610,
        "assessed_value_usd": 144070,
        "saleamt": 2498000,
        "updated": "2026-10-25"
      }
    ],
    "truncated": false
  },
  "sections": {
    "datacenters": {
      "status": "ok",
      "data": {
        "radius_km": 10,
        "projects": [
          {
            "id": "datacenter:dc_26a1a9c489da8b8c7284",
            "project_id": "dc_26a1a9c489da8b8c7284",
            "name": "Digital Fortress PTL2 (Beaverton)",
            "operator": "Digital Fortress",
            "status": "operating",
            "state": "OR",
            "city": "Beaverton",
            "address": "9705 SW Sunshine Court",
            "longitude": -122.77615,
            "latitude": 45.47633,
            "location_precision": "exact",
            "source_count": 1,
            "source_date": "2026-09-17",
            "mapped": true,
            "distance_km": 3.3923024625075326
          },
          {
            "id": "datacenter:dc_4d809942e8bbd5076d18",
            "project_id": "dc_4d809942e8bbd5076d18",
            "name": "Digital Fortress - Portland 2",
            "operator": "Digital Fortress, Inc",
            "status": "unknown",
            "state": "OR",
            "city": "Beaverton",
            "address": "9705 Southwest Sunshine Court",
            "longitude": -122.7760868,
            "latitude": 45.4762137,
            "location_precision": "exact",
            "source_count": 1,
            "source_date": "2026-04-21T00:07:09Z",
            "mapped": true,
            "distance_km": 3.4028542346956496
          },
          {
            "id": "datacenter:dc_0a5665aa4e933de4fde8",
            "project_id": "dc_0a5665aa4e933de4fde8",
            "name": "Digital Fortress - Portland 3",
            "operator": "Digital Fortress, Inc",
            "status": "unknown",
            "state": "OR",
            "city": "Beaverton",
            "address": "9610 Southwest Sunshine Court",
            "longitude": -122.7764098,
            "latitude": 45.475634,
            "location_precision": "exact",
            "source_count": 1,
            "source_date": "2026-04-21T00:07:09Z",
            "mapped": true,
            "distance_km": 3.412645441710594
          }
        ],
        "truncated": true,
        "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 41067-2f1d131c8b991d4bcd82. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"41067-2f1d131c8b991d4bcd82"}],"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 $KORZY_API_KEY" \
  https://api.korzy.co/v1/records/41067-2f1d131c8b991d4bcd82
JavaScript
const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("41067-2f1d131c8b991d4bcd82")}`, {
  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);

Washington County data questions

How many parcels in Washington County include year built?
About 190,000 of about 190,000 parcel records (100%) include year built.
Does the Korzy API return owner names for Washington County parcels?
Washington 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 Washington County?
Korzy tracks about 45 data-center projects in Washington County: 20 operating, 20 status not reported and 6 proposed. A /v1/lookup with the datacenters section lists projects within 10 km of any address or point.
How much power generation is in Washington County?
5 operable power plants in Washington County total about 100 MW of nameplate capacity, mainly battery and pumped storage, solar and other fuels.
Which water systems serve Washington County?
Service areas of about 30 community water systems cover about 17% of Washington County, and sewer service areas cover about 22%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

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Build on Washington 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