Denver County, CO parcel and infrastructure data API

Parcel coverage in Denver County

About 240,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from June 2026. Each record has a stable korzy_id you can store and look up again with /api/parcel-record. Share of records with each field:

Owner name and mailing address are returned with include_owner=true, which doubles a request's cost: a parcel record costs 2 credits instead of 1. 99% of Denver County records carry an owner name.

Infrastructure in and around Denver County

Example requests for Denver County

Real responses from the production API, trimmed to the main fields. Every request needs an API key with api:read; see authentication and credits and limits.

1. Find a parcel by address

/api/search matches 1056 N GAYLORD ST, DENVER, CO and returns the parcel's korzy_id, coordinates and record. 1 credit.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'q=1056 N GAYLORD ST, DENVER, CO' \
  https://api.korzy.co/api/search

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "1056 N GAYLORD ST, DENVER, CO"},
    headers={"Authorization": f"Bearer {os.environ['KORZY_API_KEY']}"},
    timeout=30,
)
response.raise_for_status()
parcel = response.json()["results"][0]
print(parcel["korzy_id"], parcel["longitude"], parcel["latitude"])

{
  "results": [
    {
      "korzy_id": "08031-6bc0fae39491dd10a04f",
      "address": "1056 N GAYLORD ST",
      "city": "DENVER",
      "postcode": "80206",
      "county": "Denver",
      "statefp": "08",
      "longitude": -104.96067534480078,
      "latitude": 39.7329515,
      "match_type": "exact",
      "parcelid": "0502129014000",
      "parceladdr": "1056 N GAYLORD ST",
      "parcelcity": "DENVER",
      "situs_zip": "80206",
      "usedesc": "COMMERCIAL-MISC IMPS",
      "zoning_code": "GMU",
      "totalvalue": 174880,
      "assessed_value_usd": 174880,
      "market_value_usd": 647700,
      "saledate": "2021-04-16",
      "saleamt": 0,
      "updated": "2026-04-21",
      "geoid": "08031"
    }
  ],
  "truncated": false
}

With include_owner=true (2 credits) the record adds owner fields, shown here as placeholders:

{
  "owner_name": "EXAMPLE HOLDINGS LLC",
  "owner_mailing_address": "100 EXAMPLE ST, SAMPLE CITY, ST 00000"
}

2. Look up the parcel at a point

/api/query/point returns every parcel whose boundary covers the coordinates; here it returns the same record, 08031-6bc0fae39491dd10a04f, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-104.960675' \
  --data-urlencode 'latitude=39.732951' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point

const params = new URLSearchParams({"longitude": "-104.960675", "latitude": "39.732951", "limit": "5"});
const response = await fetch(`https://api.korzy.co/api/query/point?${params}`, {
  headers: { Authorization: `Bearer ${process.env.KORZY_API_KEY}` },
});
if (!response.ok) throw new Error(`Korzy API ${response.status}`);
const { records } = await response.json();
console.log(records.map((record) => record.korzy_id));

3. Check nearby data-center projects

/api/datacenters/context lists data-center projects within 10 km of the point, nearest first. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-104.960675' \
  --data-urlencode 'latitude=39.732951' \
  --data-urlencode 'radius_km=10' \
  --data-urlencode 'limit=3' \
  https://api.korzy.co/api/datacenters/context

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/datacenters/context",
    params={"longitude": "-104.960675", "latitude": "39.732951", "radius_km": "10", "limit": "3"},
    headers={"Authorization": f"Bearer {os.environ['KORZY_API_KEY']}"},
    timeout=30,
)
response.raise_for_status()
for project in response.json()["projects"]:
    print(project["name"], project["status"], project["distance_km"])

{
  "projects": [
    {
      "project_id": "dc_ac6722711f64056562b4",
      "name": "CoreSite DE2 (639 E. 18th Avenue)",
      "operator": "CoreSite",
      "status": "operating",
      "city": "Denver",
      "state": "CO",
      "longitude": -104.979413,
      "latitude": 39.744914,
      "location_precision": "approximate",
      "distance_km": 2.0824347052944066
    },
    {
      "project_id": "dc_1da1ea00b6a93289fe31",
      "name": "Pearl Plaza Office Building",
      "status": "unknown",
      "city": "Denver",
      "state": "CO",
      "longitude": -104.97933225,
      "latitude": 39.74523035,
      "location_precision": "footprint",
      "distance_km": 2.099825811502103
    },
    {
      "project_id": "dc_27fd7a49bcd75bfa33e0",
      "name": "CoreSite DE3",
      "operator": "CoreSite",
      "status": "under_construction",
      "city": "Denver",
      "state": "CO",
      "longitude": -104.9903,
      "latitude": 39.7392,
      "location_precision": "exact",
      "planned_mw": 60,
      "distance_km": 2.6267673559021882
    }
  ],
  "radius_km": 10,
  "limit": 3,
  "truncated": true
}

Denver County data questions

How many parcels in Denver County include last sale?

About 240,000 of about 240,000 parcel records (100%) include last sale.

Does the Korzy API return owner names for Denver County parcels?

Yes. 99% of Denver County parcel records carry an owner name. Add include_owner=true to a point, search or parcel-record request; it doubles the request's cost, so a single parcel record costs 2 credits.

How many data-center projects are in Denver County?

Korzy tracks 7 data-center projects in Denver County: 4 operating, 2 status not reported and 1 under construction. /api/datacenters/context lists projects within 10 km of any point.

How much power generation is in Denver County?

About 10 operable power plants in Denver County total about 230 MW of nameplate capacity, mainly natural gas, battery and pumped storage and solar.

Which water systems serve Denver County?

Service areas of about 30 community water systems cover about 99% of Denver County, and sewer service areas cover about 72%. /api/utilities/context returns the water and sewer matches at a point.

More featured counties

• Adams County, COBorders Denver County · about 190,000 parcels
• Arapahoe County, COBorders Denver County · about 230,000 parcels
• Jefferson County, COBorders Denver County · about 260,000 parcels
• Douglas County, COabout 160,000 parcels

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