How many parcels in San Diego County include last sale?

About 800,000 of about 1.1 million parcel records (73%) include last sale.

Does the Korzy API return owner names for San Diego County parcels?

San Diego 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 San Diego County?

Korzy tracks 9 data-center projects in San Diego County: 5 operating and 4 status not reported. /api/datacenters/context lists projects within 10 km of any point.

How much power generation is in San Diego County?

About 100 operable power plants in San Diego County total about 4,500 MW of nameplate capacity, mainly natural gas, battery and pumped storage and wind.

Which water systems serve San Diego County?

Service areas of about 100 community water systems cover about 35% of San Diego County, and sewer service areas cover about 16%. /api/utilities/context returns the water and sewer matches at a point.

San Diego County, CA parcel and infrastructure data API

Korzy has about 1.1 million parcel records for San Diego County, California, with source updates through October 2026. Nearly every record carries land use; 83% include values and 73% include last sale. In and around the county the API also maps about 100 power plants with about 4,500 MW of capacity, led by natural gas; 9 data-center projects (5 operating); and 1 port with reported cargo. 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 San Diego County

About 1.1 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 /api/parcel-record. Share of records with each field:

Field	Coverage	Share
Situs address	Nearly all · 100%
Owner name	Not published
Assessed or market value	Most · 83%
Year built	Not published
Building size	Not published
Last sale	Many · 73%
Land use	Nearly all · 100%
Zoning	Not published

San Diego County records do not include owner names. See pricing for credit costs.

Infrastructure in and around San Diego County

Power plants

About 100 operable plants with about 4,500 MW of nameplate capacity; largest by capacity: natural gas, battery and pumped storage, wind. Proposed generators add about 680 MW.

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

Substations and transmission

About 150 in-service substations, about 20 rated 230 kV or higher.

About 1,600 miles of transmission lines: about 880 mi at under 100 kV; about 60 mi at 100–161 kV; about 580 mi at 220–287 kV; about 110 mi at 500 kV.

Water and sewer service

Service areas of about 100 community water systems cover about 35% of the county.

Sewer service areas of about 25 systems cover about 16%.

At a point: /api/utilities/context

Data-center projects

9 tracked projects: 5 operating, 4 status not reported. Reported operating capacity: about 10 MW. Reported planned capacity: about 25 MW.

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

Grid capacity data

2 utility-published grid capacity layers cover parts of San Diego County, including loading forecasts.

Sources and dates: /api/grid/capacity/summary

Flood zones and wetlands

Special flood hazard areas cover about 3% of the county on the current federal flood maps, published October 2026.

Rail, ports and freight

About 220 miles of active rail, about 170 of it main line
About 240 miles of national freight network highway
1 port area with reported cargo tonnage

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

Example requests for San Diego 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 9020 MIRAMAR RD, SAN DIEGO, CA 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=9020 MIRAMAR RD, SAN DIEGO, CA' \
  https://api.korzy.co/api/search

Python

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "9020 MIRAMAR RD, SAN DIEGO, CA"},
    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": "06073-258150ee5297afcd7d44",
      "address": "9020 MIRAMAR RD",
      "city": "SAN DIEGO",
      "postcode": "92126",
      "county": "San Diego",
      "statefp": "06",
      "longitude": -117.1295122822587,
      "latitude": 32.89435505,
      "match_type": "exact",
      "parcelid": "3412206300",
      "parceladdr": "9020 MIRAMAR RD",
      "parcelcity": "SAN DIEGO",
      "situs_zip": "92126",
      "usedesc": "Industrial Park",
      "taxacres": 4.47,
      "totalvalue": 0,
      "saledate": "2011-12-19",
      "updated": "2026-10-13",
      "geoid": "06073"
    }
  ],
  "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, 06073-258150ee5297afcd7d44, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-117.129512' \
  --data-urlencode 'latitude=32.894355' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point

JavaScript

const params = new URLSearchParams({"longitude": "-117.129512", "latitude": "32.894355", "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=-117.129512' \
  --data-urlencode 'latitude=32.894355' \
  --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": "-117.129512", "latitude": "32.894355", "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_f6f93a901f5ff4937fa0",
      "name": "ScaleMatrix San Diego",
      "operator": "ScaleMatrix",
      "status": "operating",
      "city": "San Diego",
      "state": "CA",
      "longitude": -117.132639,
      "latitude": 32.8377287,
      "location_precision": "approximate",
      "operational_mw": 5,
      "planned_mw": 20,
      "distance_km": 6.303335492357441
    },
    {
      "project_id": "dc_ba6b3edc405e73a5619b",
      "name": "EdgeConneX SDG01",
      "operator": "EdgeConneX",
      "status": "operating",
      "city": "San Diego",
      "state": "CA",
      "longitude": -117.16929055791691,
      "latitude": 32.842357050000004,
      "location_precision": "footprint",
      "distance_km": 6.8726007047903614
    },
    {
      "project_id": "dc_7b878be421ed278953e0",
      "name": "LightEdge SAN1",
      "status": "unknown",
      "city": "San Diego",
      "state": "CA",
      "longitude": -117.12992659595538,
      "latitude": 32.827858649999996,
      "location_precision": "footprint",
      "distance_km": 7.394168376618482
    }
  ],
  "radius_km": 10,
  "limit": 3,
  "truncated": false
}

San Diego County data questions

How many parcels in San Diego County include last sale?: About 800,000 of about 1.1 million parcel records (73%) include last sale.
Does the Korzy API return owner names for San Diego County parcels?: San Diego 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 San Diego County?: Korzy tracks 9 data-center projects in San Diego County: 5 operating and 4 status not reported. /api/datacenters/context lists projects within 10 km of any point.
How much power generation is in San Diego County?: About 100 operable power plants in San Diego County total about 4,500 MW of nameplate capacity, mainly natural gas, battery and pumped storage and wind.
Which water systems serve San Diego County?: Service areas of about 100 community water systems cover about 35% of San Diego County, and sewer service areas cover about 16%. /api/utilities/context returns the water and sewer matches at a point.

More featured counties

Riverside County, CABorders San Diego County · about 990,000 parcels
Los Angeles County, CAabout 2.5 million parcels
Contra Costa County, CAabout 410,000 parcels
Solano County, CAabout 150,000 parcels
Sacramento County, CAabout 550,000 parcels

All featured California counties

Build on San Diego 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