South Central Connecticut Planning Region, CT parcel and infrastructure data API

Parcel coverage in South Central Connecticut Planning Region

About 190,000 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. 7% of South Central Connecticut Planning Region records carry an owner name.

Infrastructure in and around South Central Connecticut Planning Region

Example requests for South Central Connecticut Planning Region

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 1 BRADLEY RD 800, Woodbridge, CT 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=1 BRADLEY RD 800, Woodbridge, CT' \
  https://api.korzy.co/api/search

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/search",
    params={"q": "1 BRADLEY RD 800, Woodbridge, CT"},
    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": "09170-1097dd50db156ab77694",
      "address": "1 BRADLEY RD 800",
      "city": "Woodbridge",
      "postcode": "06525",
      "county": "South Central Connecticut",
      "statefp": "09",
      "longitude": -72.9183859281786,
      "latitude": 41.323778450000006,
      "match_type": "exact",
      "parcelid": "103680",
      "parceladdr": "1 BRADLEY RD 800",
      "parcelcity": "Woodbridge",
      "situs_zip": "06525",
      "usedesc": "Commercial",
      "land_use_code": "200",
      "zoning_code": "DEV1",
      "yearbuilt": 2011,
      "taxacres": 0,
      "totalvalue": 0,
      "land_value_usd": 0,
      "improvement_value_usd": 801800,
      "assessed_value_usd": 561260,
      "saledate": "2012-01-19",
      "saleamt": 848498,
      "updated": "2024-01-01",
      "geoid": "09170"
    }
  ],
  "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, 09170-1097dd50db156ab77694, in records. 1 credit per 10 records requested.

curl --fail-with-body -sS --get \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  --data-urlencode 'longitude=-72.918386' \
  --data-urlencode 'latitude=41.323778' \
  --data-urlencode 'limit=5' \
  https://api.korzy.co/api/query/point

const params = new URLSearchParams({"longitude": "-72.918386", "latitude": "41.323778", "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=-72.918386' \
  --data-urlencode 'latitude=41.323778' \
  https://api.korzy.co/api/utilities/context

import os
import requests

response = requests.get(
    "https://api.korzy.co/api/utilities/context",
    params={"longitude": "-72.918386", "latitude": "41.323778"},
    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": -72.918386,
  "latitude": 41.323778,
  "matches": {
    "water": [
      {
        "feature_id": "water:35008",
        "name": "REGIONAL WATER AUTHORITY",
        "boundary_basis": "System Sourced"
      }
    ],
    "sewer": [
      {
        "feature_id": "sewer:166",
        "name": "NEW HAVEN EAST SHORE WPCF",
        "boundary_basis": "Sourced"
      }
    ]
  },
  "nearby_treatment": [
    {
      "feature_id": "treatment:638",
      "name": "NEW HAVEN EAST SHORE WPCF",
      "distance_km": 4.766276235299704
    },
    {
      "feature_id": "treatment:644",
      "name": "NORTH HAVEN WPCF",
      "distance_km": 5.958166017797164
    }
  ]
}

South Central Connecticut Planning Region data questions

How many parcels in South Central Connecticut Planning Region include year built?

About 190,000 of about 190,000 parcel records (98%) include year built.

Does the Korzy API return owner names for South Central Connecticut Planning Region parcels?

Yes. 7% of South Central Connecticut Planning Region 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 South Central Connecticut Planning Region?

Korzy tracks 1 data-center project in South Central Connecticut Planning Region: 1 status not reported. /api/datacenters/context lists projects within 10 km of any point.

How much power generation is in South Central Connecticut Planning Region?

About 20 operable power plants in South Central Connecticut Planning Region total about 2,200 MW of nameplate capacity, mainly oil, natural gas and solar.

Which water systems serve South Central Connecticut Planning Region?

Service areas of about 15 community water systems cover about 51% of South Central Connecticut Planning Region, and sewer service areas cover about 38%. /api/utilities/context returns the water and sewer matches at a point.

More featured counties

• Capitol Planning Region, CTBorders South Central Connecticut Planning Region · about 360,000 parcels
• Greater Bridgeport Planning Region, CTBorders South Central Connecticut Planning Region · about 100,000 parcels
• Naugatuck Valley Planning Region, CTBorders South Central Connecticut Planning Region · about 170,000 parcels
• Western Connecticut Planning Region, CTabout 180,000 parcels
• Southeastern Connecticut Planning Region, CTabout 120,000 parcels

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