Pima County, AZ parcel and infrastructure data API

Parcel coverage in Pima County

About 450,000 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:

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. 99% of Pima County records carry an owner name.

Infrastructure in and around Pima County

Example requests for Pima 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 434 N 4TH AV, TUCSON, AZ 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=434 N 4TH AV, TUCSON, AZ' \
  https://api.korzy.co/api/search

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "434 N 4TH AV, TUCSON, AZ"},
    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"])

{
  "results": [
    {
      "korzy_id": "04019-7fab736a2f8d33fcc553",
      "address": "434 N 4TH AV",
      "city": "TUCSON",
      "postcode": "85705",
      "county": "Pima",
      "statefp": "04",
      "longitude": -110.96519482385646,
      "latitude": 32.227319050000006,
      "match_type": "exact",
      "parcelid": "117050090",
      "parceladdr": "434 N 4TH AV",
      "parcelcity": "TUCSON",
      "situs_zip": "85705",
      "usedesc": "RESTAURANT SIT DOWN                         ",
      "taxacres": 0.44992217,
      "totalvalue": 1127080,
      "updated": "2026-10-30",
      "geoid": "04019"
    }
  ],
  "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, 04019-7fab736a2f8d33fcc553, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-110.965195' \
  --data-urlencode 'latitude=32.227319' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point

const params = new URLSearchParams({"longitude": "-110.965195", "latitude": "32.227319", "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 water and sewer service

/api/utilities/context returns the water and sewer service areas at the point and the nearest treatment plants. 1 credit.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-110.965195' \
  --data-urlencode 'latitude=32.227319' \
  https://api.korzy.co/api/utilities/context

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/utilities/context",
    params={"longitude": "-110.965195", "latitude": "32.227319"},
    headers={"Authorization": f"Bearer {os.environ['KORZY_API_KEY']}"},
    timeout=30,
)
response.raise_for_status()
matches = response.json()["matches"]
print([area["name"] for area in matches["water"]])

{
  "longitude": -110.965195,
  "latitude": 32.227319,
  "matches": {
    "water": [
      {
        "feature_id": "water:6193",
        "name": "TUCSON CITY OF",
        "boundary_basis": "System Sourced"
      }
    ],
    "sewer": [
      {
        "feature_id": "sewer:11",
        "name": "PCRWRD - Agua Nueva WRF",
        "boundary_basis": "Sourced"
      }
    ]
  },
  "nearby_treatment": [
    {
      "feature_id": "treatment:15024",
      "name": "PCRWRD - Agua Nueva WRF",
      "distance_km": 9.187154262527967
    },
    {
      "feature_id": "treatment:15011",
      "name": "Marana High School WWTP",
      "distance_km": 15.092627681870011
    }
  ]
}

Pima County data questions

How many parcels in Pima County include values?

About 450,000 of about 450,000 parcel records (99%) include values.

Does the Korzy API return owner names for Pima County parcels?

Yes. 99% of Pima 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 Pima County?

Korzy tracks 4 data-center projects in Pima County: 2 proposed, 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 Pima County?

About 35 operable power plants in Pima County total about 1,300 MW of nameplate capacity, mainly natural gas, solar and battery and pumped storage.

Which water systems serve Pima County?

Service areas of about 150 community water systems cover about 9% of Pima County, and sewer service areas cover about 3%. /api/utilities/context returns the water and sewer matches at a point.

More featured counties

• Maricopa County, AZBorders Pima County · about 1.8 million parcels
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