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Los Angeles County, CA parcel and infrastructure data API

Korzy has about 2.5 million parcel records for Los Angeles County, California, with source updates through October 2026. Nearly every record carries land use; 84% include values and 83% include last sale. In and around the county the API also maps about 240 power plants with about 14,000 MW of capacity, led by natural gas; about 1,100 miles of active rail; and about 20 data-center projects (7 operating and 1 under construction). Look up any parcel by address or coordinates, then check nearby data-center projects, utilities and grid context at the same point.

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Parcel coverage in Los Angeles County

About 2.5 million 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 /v1/records/{id}. Share of records with each field:

FieldCoverageShare
Situs addressNearly all · 99%
Owner nameNot published
Assessed or market valueMost · 84%
Year builtNot published
Building sizeNot published
Last saleMost · 83%
Land useNearly all · 98%
ZoningNot published

Los Angeles County records do not include owner names. See pricing for credit costs.

Infrastructure in and around Los Angeles County

Power plants

About 240 operable plants with about 14,000 MW of nameplate capacity; largest by capacity: natural gas, battery and pumped storage, solar. Proposed generators add about 1,100 MW.

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

Substations and transmission

About 490 in-service substations, about 65 rated 230 kV or higher.

About 3,300 miles of transmission lines: about 1,200 mi at under 100 kV; about 160 mi at 100–161 kV; about 1,300 mi at 220–287 kV; about 570 mi at 500 kV; about 40 mi at DC.

Water and sewer service

Service areas of about 230 community water systems cover about 69% of the county.

Sewer service areas of about 30 systems cover about 41%.

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

Data-center projects

About 20 tracked projects: 7 operating, 1 under construction, 5 proposed, 8 status not reported. Reported operating capacity: about 50 MW. Reported planned capacity: about 75 MW.

Within 10 km: /v1/lookup section datacenters

Grid capacity data

3 utility-published grid capacity layers cover parts of Los Angeles County, including capacity bands, loading forecasts.

Nearby records: /v1/lookup section grid

Flood zones and wetlands

Special flood hazard areas cover about 4% 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 1,100 miles of active rail, about 390 of it main line
  • About 470 miles of national freight network highway
  • 2 port areas with reported cargo tonnage
  • 20 intermodal rail terminals

Within 25 km: /v1/lookup section logistics

Example requests for Los Angeles 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 1031 ALPINE ST, LOS ANGELES, CA 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":"1031 ALPINE ST, LOS ANGELES, CA","sections":["datacenters"]}' \
  https://api.korzy.co/v1/lookup
Python
import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "1031 ALPINE ST, LOS ANGELES, CA", "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": -118.24708544283163,
    "latitude": 34.06570765,
    "address": "1031 ALPINE ST, LOS ANGELES",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "06037-c481ed16de8dcb1d9db2",
        "korzy_id": "06037-c481ed16de8dcb1d9db2",
        "parcelid": "5406027013",
        "parceladdr": "1031 ALPINE ST",
        "parcelcity": "LOS ANGELES",
        "situs_zip": "90012",
        "statefp": "06",
        "geoid": "06037",
        "longitude": -118.24708544283163,
        "latitude": 34.06570765,
        "usedesc": "Store Combination",
        "totalvalue": 0,
        "saledate": "2006-10-20",
        "updated": "2026-10-13"
      }
    ],
    "truncated": false
  },
  "sections": {
    "datacenters": {
      "status": "ok",
      "data": {
        "radius_km": 10,
        "projects": [
          {
            "id": "datacenter:dc_6e81faaaadc088132c87",
            "project_id": "dc_6e81faaaadc088132c87",
            "name": "CoreSite LA2 - Los Angeles, CA",
            "operator": "CoreSite",
            "status": "operating",
            "state": "CA",
            "city": "Los Angeles",
            "address": "900 North Alameda Street",
            "longitude": -118.2359144,
            "latitude": 34.0584789,
            "location_precision": "exact",
            "source_count": 3,
            "source_date": "2026-07-24",
            "mapped": true,
            "distance_km": 1.3057705402254653
          },
          {
            "id": "datacenter:dc_bedc78e27015438c8962",
            "project_id": "dc_bedc78e27015438c8962",
            "name": "USPO Terminal Annex",
            "operator": "United States Postal Service",
            "status": "unknown",
            "state": "CA",
            "city": "Los Angeles",
            "address": "900 Alameda St",
            "longitude": -118.23539385682871,
            "latitude": 34.0581157,
            "location_precision": "footprint",
            "source_count": 2,
            "source_date": "2026-02-09",
            "mapped": true,
            "distance_km": 1.368424187341671
          },
          {
            "id": "datacenter:dc_9ef0c8e58f2ca9d058bf",
            "project_id": "dc_9ef0c8e58f2ca9d058bf",
            "name": "One Wilshire",
            "status": "unknown",
            "state": "CA",
            "city": "Los Angeles",
            "address": "624 South Grand Avenue",
            "longitude": -118.25556895,
            "latitude": 34.04791495,
            "location_precision": "footprint",
            "source_count": 2,
            "source_date": "2026-02-09",
            "mapped": true,
            "distance_km": 2.1272264796424523
          }
        ],
        "truncated": true,
        "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 value and sale fields

/v1/enrich returns the fields you choose for up to 25 parcels per request; here the parcel 06037-c481ed16de8dcb1d9db2. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"06037-c481ed16de8dcb1d9db2"}],"fields":["identity","value","sale"]}' \
  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 $KORZY_API_KEY" \
  https://api.korzy.co/v1/records/06037-c481ed16de8dcb1d9db2
JavaScript
const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("06037-c481ed16de8dcb1d9db2")}`, {
  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);

Los Angeles County data questions

How many parcels in Los Angeles County include last sale?
About 2.1 million of about 2.5 million parcel records (83%) include last sale.
Does the Korzy API return owner names for Los Angeles County parcels?
Los Angeles 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 Los Angeles County?
Korzy tracks about 20 data-center projects in Los Angeles County: 8 status not reported, 7 operating and 5 proposed. A /v1/lookup with the datacenters section lists projects within 10 km of any address or point.
How much power generation is in Los Angeles County?
About 240 operable power plants in Los Angeles County total about 14,000 MW of nameplate capacity, mainly natural gas, battery and pumped storage and solar.
Which water systems serve Los Angeles County?
Service areas of about 230 community water systems cover about 69% of Los Angeles County, and sewer service areas cover about 41%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

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Build on Los Angeles 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.

Get an API keySee pricingAPI referenceUse cases for parcel and infrastructure data