Union County, NC parcel and infrastructure data API

Parcel coverage in Union County

About 110,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from August 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 Union County records carry an owner name.

Infrastructure in and around Union County

Example requests for Union 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 5114 ROGERS RD, MONROE, NC 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=5114 ROGERS RD, MONROE, NC' \
  https://api.korzy.co/api/search

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "5114 ROGERS RD, MONROE, NC"},
    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": "37179-95fe02ace9117d0dc4a9",
      "address": "5114 ROGERS RD",
      "city": "MONROE",
      "postcode": "28110",
      "county": "UNION",
      "statefp": "37",
      "longitude": -80.64914023437899,
      "latitude": 35.03612750003945,
      "match_type": "exact",
      "parcelid": "194182",
      "parceladdr": "5114 ROGERS RD",
      "parcelcity": "MONROE",
      "situs_zip": "28110",
      "usedesc": "EXEMPT",
      "yearbuilt": 0,
      "bldgsqft": 230000,
      "building_count": 0,
      "taxacres": 1.7726,
      "totalvalue": 0,
      "land_value_usd": 0,
      "improvement_value_usd": 0,
      "saledate": "2004-01-28",
      "saleamt": 8890000,
      "updated": "2026-05-15",
      "geoid": "37179"
    }
  ],
  "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, 37179-95fe02ace9117d0dc4a9, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-80.64914' \
  --data-urlencode 'latitude=35.036128' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point

const params = new URLSearchParams({"longitude": "-80.64914", "latitude": "35.036128", "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 water and sewer service

/api/utilities/context returns the water and sewer service areas at the point and the nearest treatment plants. 1 credit.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-80.64914' \
  --data-urlencode 'latitude=35.036128' \
  https://api.korzy.co/api/utilities/context

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/utilities/context",
    params={"longitude": "-80.64914", "latitude": "35.036128"},
    headers={"Authorization": f"Bearer {os.environ['KORZY_API_KEY']}"},
    timeout=30,
)
response.raise_for_status()
matches = response.json()["matches"]
print([area["name"] for area in matches["water"]])

{
  "longitude": -80.64914,
  "latitude": 35.036128,
  "matches": {
    "water": [
      {
        "feature_id": "water:28939",
        "name": "UNION COUNTY WATER SYSTEM",
        "boundary_basis": "System Sourced"
      }
    ],
    "sewer": []
  },
  "nearby_treatment": [
    {
      "feature_id": "treatment:7983",
      "name": "OLDE SYCAMORE WWTP",
      "distance_km": 1.9379049698770523
    },
    {
      "feature_id": "treatment:7984",
      "name": "CROOKED CREEK WWTP",
      "distance_km": 3.886788147866794
    }
  ]
}

Union County data questions

How many parcels in Union County include year built?

About 110,000 of about 110,000 parcel records (99%) include year built.

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

Yes. 99% of Union 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 Union County?

Korzy tracks 1 data-center project in Union County: 1 status not reported. /api/datacenters/context lists projects within 10 km of any point.

How much power generation is in Union County?

7 operable power plants in Union County total about 110 MW of nameplate capacity, mainly solar, natural gas and oil.

Which water systems serve Union County?

Service areas of about 10 community water systems cover about 49% of Union County, and sewer service areas cover about 20%. /api/utilities/context returns the water and sewer matches at a point.

More featured counties

• Mecklenburg County, NCBorders Union County · about 430,000 parcels
• Wake County, NCabout 440,000 parcels
• Cumberland County, NCabout 140,000 parcels
• Durham County, NCabout 130,000 parcels
• Forsyth County, NCabout 170,000 parcels

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