Dallas County, TX parcel and infrastructure data API
Korzy has about 840,000 parcel records for Dallas County, Texas, with source updates through October 2026. Nearly every record carries land use; 94% include values and 81% include year built. In and around the county the API also maps about 35 data-center projects (10 operating and 3 under construction); about 15 power plants with about 2,100 MW of capacity, led by natural gas; and about 380 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.
Parcel coverage in Dallas County
About 840,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from October 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 · 100% | |
| Owner name | Most · 77% | |
| Assessed or market value | Most · 94% | |
| Year built | Most · 81% | |
| Building size | Most · 81% | |
| Last sale | Most · 75% | |
| Land use | Nearly all · 100% | |
| Zoning | Not published |
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. 77% of Dallas County records carry an owner name.
Infrastructure in and around Dallas County
Power plants
About 15 operable plants with about 2,100 MW of nameplate capacity; largest by capacity: natural gas, battery and pumped storage, oil. Proposed generators add about 20 MW.
Plant details: /api/power/plants/{plant_id}
Substations and transmission
About 250 in-service substations, about 15 rated 230 kV or higher.
About 1,100 miles of transmission lines: about 80 mi at under 100 kV; about 800 mi at 100–161 kV; about 220 mi at 345 kV.
Water and sewer service
Service areas of about 45 community water systems cover about 89% of the county.
Sewer service areas of about 15 systems cover about 77%.
At a point: /api/utilities/context
Data-center projects
About 35 tracked projects: 10 operating, 3 under construction, 3 proposed, 20 status not reported. Reported operating capacity: about 80 MW. Reported planned capacity: about 2,700 MW.
Within 10 km of a point: /api/datacenters/context
Rail, ports and freight
- About 380 miles of active rail, about 200 of it main line
- About 200 miles of national freight network highway
- 2 intermodal rail terminals
Within 25 km of a point: /api/logistics/context
Example requests for Dallas 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 4045 N CENTRAL EXPY, DALLAS, TX 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=4045 N CENTRAL EXPY, DALLAS, TX' \
https://api.korzy.co/api/searchPython
import os
import requests
response = requests.get(
"https://api.korzy.co/api/search",
params={"q": "4045 N CENTRAL EXPY, DALLAS, TX"},
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": "48113-f812e2e84c5dc797d871",
"address": "4045 N CENTRAL EXPY",
"city": "DALLAS",
"postcode": "75204",
"county": "Dallas",
"statefp": "48",
"longitude": -96.79137125723335,
"latitude": 32.81322635,
"match_type": "exact",
"parcelid": "00000157831000000",
"parceladdr": "4045 N CENTRAL EXPY",
"parcelcity": "DALLAS",
"situs_zip": "75204",
"usedesc": "Commercial",
"land_use_code": "COM",
"taxacres": 0.5628,
"totalvalue": 2574180,
"land_value_usd": 0,
"improvement_value_usd": 0,
"market_value_usd": 0,
"saledate": "1991-08-07",
"updated": "2026-10-30",
"geoid": "48113"
}
],
"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, 48113-f812e2e84c5dc797d871, in records. 1 credit per 10 records requested.
curl --fail-with-body -sS --get \
-H "Authorization: Bearer $KORZY_API_KEY" \
--data-urlencode 'longitude=-96.791371' \
--data-urlencode 'latitude=32.813226' \
--data-urlencode 'limit=5' \
https://api.korzy.co/api/query/pointJavaScript
const params = new URLSearchParams({"longitude": "-96.791371", "latitude": "32.813226", "limit": "5"});
const response = await fetch(`https://api.korzy.co/api/query/point?${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=-96.791371' \
--data-urlencode 'latitude=32.813226' \
--data-urlencode 'radius_km=10' \
--data-urlencode 'limit=3' \
https://api.korzy.co/api/datacenters/contextPython
import os
import requests
response = requests.get(
"https://api.korzy.co/api/datacenters/context",
params={"longitude": "-96.791371", "latitude": "32.813226", "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_3d1021689e6490819552",
"name": "Equinix Infomart",
"operator": "Equinix",
"status": "unknown",
"city": "Dallas",
"state": "TX",
"longitude": -96.81952300449768,
"latitude": 32.800965950000005,
"location_precision": "footprint",
"distance_km": 2.963274905366046
},
{
"project_id": "dc_57d38ce7655b23b0d9c5",
"name": "Flexential Dallas - Downtown Dallas",
"operator": "Flexential",
"status": "operating",
"city": "Dallas",
"state": "TX",
"longitude": -96.8193707,
"latitude": 32.8004101,
"location_precision": "exact",
"operational_mw": 6.66,
"distance_km": 2.9797115319972654
},
{
"project_id": "dc_75a36db43a789a5c6765",
"name": "Live Oak Data Center",
"status": "unknown",
"city": "Dallas",
"state": "TX",
"longitude": -96.79462532694566,
"latitude": 32.783714599999996,
"location_precision": "footprint",
"distance_km": 3.295590007008101
}
],
"radius_km": 10,
"limit": 3,
"truncated": true
}Dallas County data questions
- How many parcels in Dallas County include year built?
- About 680,000 of about 840,000 parcel records (81%) include year built.
- Does the Korzy API return owner names for Dallas County parcels?
- Yes. 77% of Dallas 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 Dallas County?
- Korzy tracks about 35 data-center projects in Dallas County: 20 status not reported, 10 operating and 3 under construction. /api/datacenters/context lists projects within 10 km of any point.
- How much power generation is in Dallas County?
- About 15 operable power plants in Dallas County total about 2,100 MW of nameplate capacity, mainly natural gas, battery and pumped storage and oil.
- Which water systems serve Dallas County?
- Service areas of about 45 community water systems cover about 89% of Dallas County, and sewer service areas cover about 77%. /api/utilities/context returns the water and sewer matches at a point.
More featured counties
- Denton County, TXBorders Dallas County · about 380,000 parcels
- Tarrant County, TXBorders Dallas County · about 750,000 parcels
- Bexar County, TXabout 710,000 parcels
- Harris County, TXabout 1.6 million parcels
- Travis County, TXabout 420,000 parcels
Build on Dallas 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.