St. Louis County, MN parcel and infrastructure data API

Parcel coverage in St. Louis 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:

Owner name and mailing address are returned by /v1/enrich with the owner group, at 2 credits per parcel instead of 1 credit. 99% of St. Louis County records carry an owner name.

Infrastructure in and around St. Louis County

Example requests for St. Louis 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 7556 Metske Road, EVELETH, MN 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":"7556 Metske Road, EVELETH, MN","sections":["utilities"]}' \
  https://api.korzy.co/v1/lookup

import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "7556 Metske Road, EVELETH, MN", "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": -92.47921085012382,
    "latitude": 47.2972616,
    "address": "7556 Metske Road, EVELETH",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "27137-c05f9186f1109d5cffc6",
        "korzy_id": "27137-c05f9186f1109d5cffc6",
        "parcelid": "690-0010-05530",
        "parceladdr": "7556 Metske Road",
        "parcelcity": "EVELETH",
        "situs_zip": "55734",
        "statefp": "27",
        "geoid": "27137",
        "longitude": -92.47921085012382,
        "latitude": 47.2972616,
        "usedesc": "Commercial Preferred",
        "yearbuilt": 1977,
        "taxacres": 24.82,
        "land_value_usd": 72700,
        "improvement_value_usd": 165000,
        "market_value_usd": 237700,
        "saledate": "2015-02-10",
        "saleamt": 168000,
        "updated": "2026-11-03"
      }
    ],
    "truncated": false
  },
  "sections": {
    "utilities": {
      "status": "ok",
      "data": {
        "treatment_plants": [
          {
            "id": "utility:treatment:7119",
            "feature_id": "treatment:7119",
            "name": "IRON JUNCTION WWTP",
            "distance_km": 16.64312176287255
          },
          {
            "id": "utility:treatment:7122",
            "feature_id": "treatment:7122",
            "name": "EVELETH WWTF",
            "distance_km": 18.83588754063017
          },
          {
            "id": "utility:treatment:135",
            "feature_id": "treatment:135",
            "name": "GILBERT WWTP",
            "distance_km": 21.56296963305985
          }
        ],
        "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 27137-c05f9186f1109d5cffc6, 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":"27137-c05f9186f1109d5cffc6"}],"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/27137-c05f9186f1109d5cffc6

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("27137-c05f9186f1109d5cffc6")}`, {
  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);

St. Louis County data questions

How many parcels in St. Louis County include year built?

About 87,000 of about 190,000 parcel records (46%) include year built.

Does the Korzy API return owner names for St. Louis County parcels?

Yes. 99% of St. Louis 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 St. Louis County?

Korzy tracks 2 data-center projects in St. Louis County: 1 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 St. Louis County?

7 operable power plants in St. Louis County total about 270 MW of nameplate capacity, mainly natural gas, other fuels and wind.

Which water systems serve St. Louis County?

Service areas of about 35 community water systems cover about 1% of St. Louis County, and sewer service areas cover about 3%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

More featured counties

• Hennepin County, MNabout 450,000 parcels
• Dakota County, MNabout 170,000 parcels
• Ramsey County, MNabout 170,000 parcels
• Anoka County, MNabout 150,000 parcels
• Washington County, MNabout 130,000 parcels

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