How many parcels in Salt Lake County include year built?

About 350,000 of about 400,000 parcel records (88%) include year built.

Does the Korzy API return owner names for Salt Lake County parcels?

Salt Lake 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 Salt Lake County?

Korzy tracks about 25 data-center projects in Salt Lake County: 20 operating, 1 under construction and 1 status not reported. /api/datacenters/context lists projects within 10 km of any point.

How much power generation is in Salt Lake County?

About 15 operable power plants in Salt Lake County total about 1,000 MW of nameplate capacity, mainly natural gas, battery and pumped storage and other fuels.

Which water systems serve Salt Lake County?

Service areas of about 40 community water systems cover about 48% of Salt Lake County, and sewer service areas cover about 39%. /api/utilities/context returns the water and sewer matches at a point.

Salt Lake County, UT parcel and infrastructure data API

Korzy has about 400,000 parcel records for Salt Lake County, Utah, with source updates through September 2026. Nearly every record carries values and land use; 88% include year built and 88% include building size. In and around the county the API also maps about 25 data-center projects (20 operating and 1 under construction); about 15 power plants with about 1,000 MW of capacity, led by natural gas; and about 240 miles of active rail. Look up any parcel by address or coordinates, then check nearby data-center projects, utilities and grid context at the same point.

Get an API key Read the API docs

Parcel coverage in Salt Lake County

About 400,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from September 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:

Field	Coverage	Share
Situs address	Nearly all · 99%
Owner name	Not published
Assessed or market value	Nearly all · 99%
Year built	Most · 88%
Building size	Most · 88%
Last sale	Not published
Land use	Nearly all · 99%
Zoning	Not published

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

Infrastructure in and around Salt Lake County

Power plants

About 15 operable plants with about 1,000 MW of nameplate capacity; largest by capacity: natural gas, battery and pumped storage, other fuels. Proposed generators add 2 MW.

Plant details: /api/power/plants/{plant_id}

Substations and transmission

About 340 in-service substations, 8 rated 230 kV or higher.

About 930 miles of transmission lines: about 320 mi at under 100 kV; about 440 mi at 100–161 kV; 2 mi at 220–287 kV; about 170 mi at 345 kV.

Water and sewer service

Service areas of about 40 community water systems cover about 48% of the county.

Sewer service areas of 7 systems cover about 39%.

At a point: /api/utilities/context

Data-center projects

About 25 tracked projects: 20 operating, 1 under construction, 1 status not reported. Reported operating capacity: about 310 MW. Reported planned capacity: about 360 MW.

Within 10 km of a point: /api/datacenters/context

Flood zones and wetlands

Special flood hazard areas cover about 12% of the county on the current federal flood maps, published July 2026.

Mapped wetlands cover about 3%.

Rail, ports and freight

About 240 miles of active rail, about 110 of it main line
About 95 miles of national freight network highway
1 intermodal rail terminal

Within 25 km of a point: /api/logistics/context

Example requests for Salt Lake 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 745 W ANDERSON AVE, Murray, UT 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=745 W ANDERSON AVE, Murray, UT' \
  https://api.korzy.co/api/search

Python

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "745 W ANDERSON AVE, Murray, UT"},
    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"])

Response (trimmed)

{
  "results": [
    {
      "korzy_id": "49035-cc00f7201b6fab5d6515",
      "address": "745 W ANDERSON AVE",
      "city": "Murray",
      "postcode": "84123",
      "county": "Salt Lake",
      "statefp": "49",
      "longitude": -111.91246882343796,
      "latitude": 40.6469415,
      "match_type": "exact",
      "parcelid": "21142790200000",
      "parceladdr": "745 W ANDERSON AVE",
      "parcelcity": "Murray",
      "situs_zip": "84123",
      "usedesc": "SCHOOL",
      "land_use_code": "Tax Exempt - Government",
      "yearbuilt": 1993,
      "bldgsqft": 54441,
      "taxacres": 8.63,
      "totalvalue": 9009600,
      "land_value_usd": 2501000,
      "market_value_usd": 9009600,
      "updated": "2026-09-29",
      "geoid": "49035"
    }
  ],
  "truncated": false
}

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, 49035-cc00f7201b6fab5d6515, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-111.912469' \
  --data-urlencode 'latitude=40.646941' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point

JavaScript

const params = new URLSearchParams({"longitude": "-111.912469", "latitude": "40.646941", "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=-111.912469' \
  --data-urlencode 'latitude=40.646941' \
  --data-urlencode 'radius_km=10' \
  --data-urlencode 'limit=3' \
  https://api.korzy.co/api/datacenters/context

Python

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/datacenters/context",
    params={"longitude": "-111.912469", "latitude": "40.646941", "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"])

Response (trimmed)

{
  "projects": [
    {
      "project_id": "dc_6ec7e50c2aa52a56468a",
      "name": "CirrusDS View 78 Data Center",
      "operator": "Cirrus Data Services",
      "status": "operating",
      "city": "Midvale",
      "state": "UT",
      "longitude": -111.8994,
      "latitude": 40.6111,
      "location_precision": "approximate",
      "operational_mw": 32,
      "planned_mw": 112,
      "distance_km": 4.135135656850315
    },
    {
      "project_id": "dc_b01a6f95df95d5e45328",
      "name": "Flexential Salt Lake City - Millcreek",
      "operator": "Flexential",
      "status": "operating",
      "city": "Salt Lake City",
      "state": "UT",
      "longitude": -111.88506468204031,
      "latitude": 40.6857603,
      "location_precision": "footprint",
      "operational_mw": 1.92,
      "distance_km": 4.896401394729564
    },
    {
      "project_id": "dc_6779092645c111d9ead9",
      "name": "Oracle West Jordan Data Center (Project Sequoia)",
      "operator": "Oracle",
      "status": "operating",
      "city": "West Jordan",
      "state": "UT",
      "longitude": -111.93952,
      "latitude": 40.60613,
      "location_precision": "approximate",
      "distance_km": 5.079869352738239
    }
  ],
  "radius_km": 10,
  "limit": 3,
  "truncated": true
}

Salt Lake County data questions

How many parcels in Salt Lake County include year built?: About 350,000 of about 400,000 parcel records (88%) include year built.
Does the Korzy API return owner names for Salt Lake County parcels?: Salt Lake 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 Salt Lake County?: Korzy tracks about 25 data-center projects in Salt Lake County: 20 operating, 1 under construction and 1 status not reported. /api/datacenters/context lists projects within 10 km of any point.
How much power generation is in Salt Lake County?: About 15 operable power plants in Salt Lake County total about 1,000 MW of nameplate capacity, mainly natural gas, battery and pumped storage and other fuels.
Which water systems serve Salt Lake County?: Service areas of about 40 community water systems cover about 48% of Salt Lake County, and sewer service areas cover about 39%. /api/utilities/context returns the water and sewer matches at a point.

More featured counties

Utah County, UTBorders Salt Lake County · about 280,000 parcels

All featured Utah counties

Build on Salt Lake County parcel data

Search, point and record lookups work the same in every county Korzy covers. Credits are shared across parcels, utilities, environment, logistics and data-center routes.

Get an API key See pricing API reference Use cases for parcel and infrastructure data