Jefferson County, AL parcel and infrastructure data API

Parcel coverage in Jefferson County

About 330,000 parcel records with boundaries, situs addresses and parcel numbers, with the latest source update from November 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. 96% of Jefferson County records carry an owner name.

Infrastructure in and around Jefferson County

Example requests for Jefferson 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 612 10TH ST N, Birmingham, AL 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=612 10TH ST N, Birmingham, AL' \
  https://api.korzy.co/api/search

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "612 10TH ST N, Birmingham, AL"},
    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": "01073-0150f6f9fa5e79c095bc",
      "address": "612 10TH ST N",
      "city": "Birmingham",
      "postcode": "35203",
      "county": "Jefferson",
      "statefp": "01",
      "longitude": -86.82336829918603,
      "latitude": 33.513005750000005,
      "match_type": "exact",
      "parcelid": "2200353001009000",
      "parceladdr": "612 10TH ST N",
      "parcelcity": "Birmingham",
      "situs_zip": "35203",
      "land_use_code": "C",
      "taxacres": 0.25,
      "assessed_value_usd": 22720,
      "updated": "2026-10-29",
      "geoid": "01073"
    }
  ],
  "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, 01073-0150f6f9fa5e79c095bc, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-86.823368' \
  --data-urlencode 'latitude=33.513006' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point

const params = new URLSearchParams({"longitude": "-86.823368", "latitude": "33.513006", "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=-86.823368' \
  --data-urlencode 'latitude=33.513006' \
  --data-urlencode 'radius_km=10' \
  --data-urlencode 'limit=3' \
  https://api.korzy.co/api/datacenters/context

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/datacenters/context",
    params={"longitude": "-86.823368", "latitude": "33.513006", "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"])

{
  "projects": [
    {
      "project_id": "dc_89c39ca1a1016023e75b",
      "name": "DC BLOX Birmingham Data Center Campus",
      "operator": "DC BLOX",
      "status": "operating",
      "city": "Birmingham",
      "state": "AL",
      "longitude": -86.8208315,
      "latitude": 33.5006652,
      "location_precision": "exact",
      "operational_mw": 5,
      "planned_mw": 60,
      "distance_km": 1.3922427939163435
    },
    {
      "project_id": "dc_d62fabff48ac59ebe116",
      "name": "Nebius Birmingham AI Factory (BHM01)",
      "operator": "Nebius Group",
      "status": "under_construction",
      "city": "Birmingham",
      "state": "AL",
      "longitude": -86.8131,
      "latitude": 33.4556,
      "location_precision": "exact",
      "planned_mw": 300,
      "distance_km": 6.453903716277273
    },
    {
      "project_id": "dc_c86712f48ccc7c021b95",
      "name": "Patmos Fairfield Colocation Data Center",
      "operator": "Patmos",
      "status": "proposed",
      "city": "Fairfield",
      "state": "AL",
      "longitude": -86.9150283,
      "latitude": 33.4916836,
      "location_precision": "approximate",
      "planned_mw": 45,
      "distance_km": 8.823396806077351
    }
  ],
  "radius_km": 10,
  "limit": 3,
  "truncated": false
}

Jefferson County data questions

How many parcels in Jefferson County include values?

About 320,000 of about 330,000 parcel records (96%) include values.

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

Yes. 96% of Jefferson 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 Jefferson County?

Korzy tracks 5 data-center projects in Jefferson County: 2 proposed, 1 operating and 1 under construction. /api/datacenters/context lists projects within 10 km of any point.

How much power generation is in Jefferson County?

2 operable power plants in Jefferson County total about 2,800 MW of nameplate capacity, mainly coal and natural gas.

Which water systems serve Jefferson County?

Service areas of about 20 community water systems cover about 55% of Jefferson County, and sewer service areas cover about 36%. /api/utilities/context returns the water and sewer matches at a point.

More featured counties

• Tuscaloosa County, ALBorders Jefferson County · about 120,000 parcels
• Madison County, ALabout 190,000 parcels

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