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Clackamas County, OR parcel and infrastructure data API

Korzy has about 190,000 parcel records for Clackamas County, Oregon, with source updates through November 2026. Nearly every record carries values, land use and building size; 94% include last sale and 82% include year built. In and around the county the API also maps 1 data-center project; 1 port with reported cargo; and about 35 power plants with about 280 MW of capacity, led by hydro. Look up any parcel by address or coordinates, then check water, sewer and infrastructure context at the same point.

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Parcel coverage in Clackamas 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 valueNearly all · 99%
Year builtMost · 82%
Building sizeNearly all · 95%
Last saleMost · 94%
Land useNearly all · 98%
ZoningNot published

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

Infrastructure in and around Clackamas County

Power plants

About 35 operable plants with about 280 MW of nameplate capacity; largest by capacity: hydro, solar. Proposed generators add about 200 MW.

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

Substations and transmission

About 95 in-service substations, 6 rated 230 kV or higher.

About 760 miles of transmission lines: about 70 mi at under 100 kV; about 280 mi at 100–161 kV; about 200 mi at 220–287 kV; about 210 mi at 500 kV.

Water and sewer service

Service areas of about 70 community water systems cover about 9% of the county.

Sewer service areas of about 15 systems cover about 13%.

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

Data-center projects

1 tracked project: 1 status not reported.

Within 10 km: /v1/lookup section datacenters

Flood zones and wetlands

Special flood hazard areas cover about 2% of the county on the current federal flood maps, published September 2026.

Mapped wetlands cover about 1%.

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

Rail, ports and freight

  • About 65 miles of active rail, about 45 of it main line
  • About 20 miles of national freight network highway
  • 1 port area with reported cargo tonnage

Within 25 km: /v1/lookup section logistics

Example requests for Clackamas 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 4100 SE ROETHE RD, MILWAUKIE, OR 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":"4100 SE ROETHE RD, MILWAUKIE, OR","sections":["utilities"]}' \
  https://api.korzy.co/v1/lookup
Python
import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "4100 SE ROETHE RD, MILWAUKIE, OR", "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"])
Production response (trimmed)
{
  "location": {
    "longitude": -122.6204630338363,
    "latitude": 45.39742535,
    "address": "4100 SE ROETHE RD, MILWAUKIE",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "41005-dd45a5c8c563253b1a7e",
        "korzy_id": "41005-dd45a5c8c563253b1a7e",
        "parcelid": "00293907",
        "parceladdr": "4100 SE ROETHE RD",
        "parcelcity": "MILWAUKIE",
        "situs_zip": "97267",
        "statefp": "41",
        "geoid": "41005",
        "longitude": -122.6204630338363,
        "latitude": 45.39742535,
        "usedesc": "Industrial land improved",
        "land_use_code": "301",
        "yearbuilt": 1978,
        "bldgsqft": 0,
        "taxacres": 0,
        "totalvalue": 2775438,
        "land_value_usd": 1029038,
        "improvement_value_usd": 1746400,
        "assessed_value_usd": 1341478,
        "saledate": "2012-04-24",
        "saleamt": 1090000,
        "updated": "2026-11-02"
      }
    ],
    "truncated": false
  },
  "sections": {
    "utilities": {
      "status": "ok",
      "data": {
        "water": [
          {
            "id": "utility:water:43650",
            "feature_id": "water:43650",
            "name": "OAK LODGE WATER SERVICES",
            "boundary_basis": "System Sourced"
          }
        ],
        "sewer": [
          {
            "id": "utility:sewer:13238",
            "feature_id": "sewer:13238",
            "name": "TRYON CREEK STP",
            "boundary_basis": "Modeled"
          }
        ],
        "treatment_plants": [
          {
            "id": "utility:treatment:8198",
            "feature_id": "treatment:8198",
            "name": "TRI CITY WPCP",
            "distance_km": 3.4048696835106065
          },
          {
            "id": "utility:treatment:8202",
            "feature_id": "treatment:8202",
            "name": "OAK LODGE STP",
            "distance_km": 3.8283789138753077
          },
          {
            "id": "utility:treatment:8208",
            "feature_id": "treatment:8208",
            "name": "TRYON CREEK STP",
            "distance_km": 3.8462157768866105
          }
        ],
        "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 value and sale fields

/v1/enrich returns the fields you choose for up to 25 parcels per request; here the parcel 41005-dd45a5c8c563253b1a7e. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"41005-dd45a5c8c563253b1a7e"}],"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 $KORZY_API_KEY" \
  https://api.korzy.co/v1/records/41005-dd45a5c8c563253b1a7e
JavaScript
const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("41005-dd45a5c8c563253b1a7e")}`, {
  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);

Clackamas County data questions

How many parcels in Clackamas County include year built?
About 160,000 of about 190,000 parcel records (82%) include year built.
Does the Korzy API return owner names for Clackamas County parcels?
Clackamas 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 Clackamas County?
Korzy tracks 1 data-center project in Clackamas County: 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 Clackamas County?
About 35 operable power plants in Clackamas County total about 280 MW of nameplate capacity, mainly hydro and solar.
Which water systems serve Clackamas County?
Service areas of about 70 community water systems cover about 9% of Clackamas County, and sewer service areas cover about 13%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

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Build on Clackamas 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