Tarrant County, TX parcel and infrastructure data API

Korzy has about 750,000 parcel records for Tarrant County, Texas, with source updates through July 2026. Nearly every record carries values, last sale, year built and building size. In and around the county the API also maps about 10 data-center projects (2 operating and 1 under construction); about 25 power plants with about 1,500 MW of capacity, led by natural gas; and about 420 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 Tarrant County

About 750,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from July 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 · 99%
Owner nameSome · 1%
Assessed or market valueNearly all · 99%
Year builtNearly all · 99%
Building sizeNearly all · 99%
Last saleNearly all · 95%
Land useSome · 1%
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. 1% of Tarrant County records carry an owner name.

Infrastructure in and around Tarrant County

Power plants

About 25 operable plants with about 1,500 MW of nameplate capacity; largest by capacity: natural gas, battery and pumped storage, solar. Proposed generators add about 10 MW.

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

Substations and transmission

About 140 in-service substations, about 15 rated 230 kV or higher.

About 750 miles of transmission lines: about 55 mi at under 100 kV; about 450 mi at 100–161 kV; about 250 mi at 345 kV.

Water and sewer service

Service areas of about 90 community water systems cover about 91% of the county.

Sewer service areas of about 10 systems cover about 55%.

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

Data-center projects

About 10 tracked projects: 2 operating, 1 under construction, 8 status not reported.

Within 10 km: /v1/lookup section datacenters

Flood zones and wetlands

Special flood hazard areas cover about 15% of the county on the current federal flood maps, published October 2026.

Mapped wetlands cover about 1%.

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

Rail, ports and freight

  • About 420 miles of active rail, about 240 of it main line
  • About 150 miles of national freight network highway

Within 25 km: /v1/lookup section logistics

Example requests for Tarrant 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 nearby data-center projects

/v1/lookup matches 3801 COLLEYVILLE BLVD, COLLEYVILLE, TX and returns the parcel's korzy_id and record, plus the data-center projects within 10 km, nearest first. 2 credits.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"address":"3801 COLLEYVILLE BLVD, COLLEYVILLE, TX","sections":["datacenters"]}' \
  https://api.korzy.co/v1/lookup
Python
import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "3801 COLLEYVILLE BLVD, COLLEYVILLE, TX", "sections": ["datacenters"]},
    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"]["datacenters"]["status"])
Production response (trimmed)
{
  "location": {
    "longitude": -97.17277675220839,
    "latitude": 32.8656922,
    "address": "3801 COLLEYVILLE BLVD, COLLEYVILLE",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "48439-85468463b14d91f8ae5a",
        "korzy_id": "48439-85468463b14d91f8ae5a",
        "parcelid": "1000002908",
        "parceladdr": "3801 COLLEYVILLE BLVD",
        "parcelcity": "COLLEYVILLE",
        "situs_zip": "76034",
        "statefp": "48",
        "geoid": "48439",
        "longitude": -97.17277675220839,
        "latitude": 32.8656922,
        "usedesc": "COMMERCIAL",
        "yearbuilt": 1973,
        "bldgsqft": 7000,
        "taxacres": 0.2753,
        "totalvalue": 900335,
        "land_value_usd": 89955,
        "improvement_value_usd": 900335,
        "market_value_usd": 798000,
        "updated": "2026-01-01"
      }
    ],
    "truncated": false
  },
  "sections": {
    "datacenters": {
      "status": "ok",
      "data": {
        "radius_km": 10,
        "projects": [
          {
            "id": "datacenter:dc_33989ffcfc93945ee135",
            "project_id": "dc_33989ffcfc93945ee135",
            "name": "Amazon Web Services",
            "operator": "Amazon Web Services",
            "status": "unknown",
            "state": "TX",
            "longitude": -97.07025967865607,
            "latitude": 32.85051835,
            "location_precision": "footprint",
            "source_count": 1,
            "source_date": "2026-05-23T14:47:34Z",
            "mapped": true,
            "distance_km": 9.72319544986684
          }
        ],
        "truncated": false,
        "note": "Straight-line distance to the reported project point; inspect location_precision. Projects merge supported source matches, not every nearby building. Approximate locations do not identify a parcel. Reported IT load, facility power, planned capacity and estimates remain separate source claims. No record or unknown status does not establish absence or inactivity."
      },
      "provenance": [
        {
          "dataset": "datacenters",
          "as_of": "2026-11-02",
          "data_version": "20261102T123021962884Z"
        }
      ]
    }
  },
  "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 48439-85468463b14d91f8ae5a, 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":"48439-85468463b14d91f8ae5a"}],"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 $KORZY_API_KEY" \
  https://api.korzy.co/v1/records/48439-85468463b14d91f8ae5a
JavaScript
const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("48439-85468463b14d91f8ae5a")}`, {
  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);

Tarrant County data questions

How many parcels in Tarrant County include year built?
About 740,000 of about 750,000 parcel records (99%) include year built.
Does the Korzy API return owner names for Tarrant County parcels?
Yes. 1% of Tarrant 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 Tarrant County?
Korzy tracks about 10 data-center projects in Tarrant County: 8 status not reported, 2 operating and 1 under construction. A /v1/lookup with the datacenters section lists projects within 10 km of any address or point.
How much power generation is in Tarrant County?
About 25 operable power plants in Tarrant County total about 1,500 MW of nameplate capacity, mainly natural gas, battery and pumped storage and solar.
Which water systems serve Tarrant County?
Service areas of about 90 community water systems cover about 91% of Tarrant County, and sewer service areas cover about 55%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

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Build on Tarrant 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.