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Ramsey County, MN parcel and infrastructure data API

Korzy has about 170,000 parcel records for Ramsey County, Minnesota, with source updates through November 2026. Nearly every record carries owner names, values, last sale, land use and building size; 93% include year built. In and around the county the API also maps 2 data-center projects (1 operating); 4 power plants with about 700 MW of capacity, led by natural gas; and 1 port with reported cargo. 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 Ramsey County

About 170,000 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 nameNearly all · 95%
Assessed or market valueNearly all · 99%
Year builtMost · 93%
Building sizeNearly all · 95%
Last saleNearly all · 98%
Land useNearly all · 99%
ZoningNot published

Owner name and mailing address are returned by /v1/enrich with the owner group, at 2 credits per parcel instead of 1 credit. 95% of Ramsey County records carry an owner name.

Infrastructure in and around Ramsey County

Power plants

4 operable plants with about 700 MW of nameplate capacity; largest by capacity: natural gas, battery and pumped storage, other fuels.

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

Substations and transmission

About 30 in-service substations, 2 rated 230 kV or higher.

About 130 miles of transmission lines: about 80 mi at 100–161 kV; 1 mi at 220–287 kV; about 40 mi at 345 kV.

Water and sewer service

Service areas of about 25 community water systems cover about 81% of the county.

Sewer service areas of 1 system cover about 82%.

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

Data-center projects

2 tracked projects: 1 operating, 1 status not reported.

Within 10 km: /v1/lookup section datacenters

Flood zones and wetlands

Special flood hazard areas cover about 17% of the county on the current federal flood maps, published October 2026.

Mapped wetlands cover about 7%.

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

Rail, ports and freight

  • About 160 miles of active rail, about 90 of it main line
  • About 50 miles of national freight network highway
  • 1 port area with reported cargo tonnage
  • 1 intermodal rail terminal

Within 25 km: /v1/lookup section logistics

Example requests for Ramsey 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 5 Mackubin Street, St Paul, 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":"5 Mackubin Street, St Paul, MN","sections":["utilities"]}' \
  https://api.korzy.co/v1/lookup
Python
import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "5 Mackubin Street, St Paul, 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"])
Production response (trimmed)
{
  "location": {
    "longitude": -93.12154159811622,
    "latitude": 44.94166965,
    "address": "5 Mackubin Street, St Paul",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "27123-d9566fdbc09249386b9b",
        "korzy_id": "27123-d9566fdbc09249386b9b",
        "parcelid": "012823230186",
        "parceladdr": "5 Mackubin Street",
        "parcelcity": "St Paul",
        "situs_zip": "55102",
        "statefp": "27",
        "geoid": "27123",
        "longitude": -93.12154159811622,
        "latitude": 44.94166965,
        "usedesc": "5e Charitable Institution",
        "yearbuilt": 1894,
        "bldgsqft": 6893,
        "taxacres": 0.35,
        "totalvalue": 1140400,
        "land_value_usd": 309100,
        "improvement_value_usd": 745000,
        "market_value_usd": 1054100,
        "saledate": "2015-07-29",
        "saleamt": 1250000,
        "updated": "2026-11-03"
      }
    ],
    "truncated": false
  },
  "sections": {
    "utilities": {
      "status": "ok",
      "data": {
        "water": [
          {
            "id": "utility:water:37577",
            "feature_id": "water:37577",
            "name": "Saint Paul Regional Water Services",
            "boundary_basis": "System Sourced"
          }
        ],
        "sewer": [
          {
            "id": "utility:sewer:988",
            "feature_id": "sewer:988",
            "name": "METROPOLITAN WWTP",
            "boundary_basis": "Sourced"
          }
        ],
        "treatment_plants": [
          {
            "id": "utility:treatment:7077",
            "feature_id": "treatment:7077",
            "name": "METROPOLITAN WWTP",
            "distance_km": 6.254442262725026
          },
          {
            "id": "utility:treatment:7079",
            "feature_id": "treatment:7079",
            "name": "SENECA TREATMENT WWTF",
            "distance_km": 14.635880893824133
          },
          {
            "id": "utility:treatment:7087",
            "feature_id": "treatment:7087",
            "name": "MCES - Eagles Point WWTF",
            "distance_km": 23.474755418886005
          }
        ],
        "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 27123-d9566fdbc09249386b9b, 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":"27123-d9566fdbc09249386b9b"}],"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 $KORZY_API_KEY" \
  https://api.korzy.co/v1/records/27123-d9566fdbc09249386b9b
JavaScript
const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("27123-d9566fdbc09249386b9b")}`, {
  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);

Ramsey County data questions

How many parcels in Ramsey County include year built?
About 160,000 of about 170,000 parcel records (93%) include year built.
Does the Korzy API return owner names for Ramsey County parcels?
Yes. 95% of Ramsey 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 Ramsey County?
Korzy tracks 2 data-center projects in Ramsey County: 1 operating 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 Ramsey County?
4 operable power plants in Ramsey County total about 700 MW of nameplate capacity, mainly natural gas, battery and pumped storage and other fuels.
Which water systems serve Ramsey County?
Service areas of about 25 community water systems cover about 81% of Ramsey County, and sewer service areas cover about 82%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

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Build on Ramsey 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.

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