Worcester County, MA parcel and infrastructure data API

Parcel coverage in Worcester County

About 320,000 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 /v1/records/{id}. Share of records with each field:

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

Infrastructure in and around Worcester County

Example requests for Worcester 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 its water and sewer service

/v1/lookup matches 28 BOWDITCH DR, SHREWSBURY, MA and returns the parcel's korzy_id and record, plus the water and sewer service areas at the parcel and the nearest treatment plants. 2 credits.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"address":"28 BOWDITCH DR, SHREWSBURY, MA","sections":["utilities"]}' \
  https://api.korzy.co/v1/lookup

import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "28 BOWDITCH DR, SHREWSBURY, MA", "sections": ["utilities"]},
    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"]["utilities"]["status"])

{
  "location": {
    "longitude": -71.75896065664756,
    "latitude": 42.2983751,
    "address": "28 BOWDITCH DR, SHREWSBURY",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "25027-b5684b78d6f9da86863b",
        "korzy_id": "25027-b5684b78d6f9da86863b",
        "parcelid": "19 145001",
        "parceladdr": "28 BOWDITCH DR",
        "parcelcity": "SHREWSBURY",
        "situs_zip": "01545",
        "statefp": "25",
        "geoid": "25027",
        "longitude": -71.75896065664756,
        "latitude": 42.2983751,
        "usedesc": "Industrial",
        "yearbuilt": 1977,
        "bldgsqft": 41040,
        "taxacres": 9.13,
        "totalvalue": 3069600,
        "saledate": "1993-09-24",
        "saleamt": 0,
        "updated": "2026-11-03"
      }
    ],
    "truncated": false
  },
  "sections": {
    "utilities": {
      "status": "ok",
      "data": {
        "treatment_plants": [
          {
            "id": "utility:treatment:2057",
            "feature_id": "treatment:2057",
            "name": "Upper Blackstone Clean Water",
            "distance_km": 9.888129066899934
          },
          {
            "id": "utility:treatment:2134",
            "feature_id": "treatment:2134",
            "name": "Westborough Sewerage Collection System and WWTF",
            "distance_km": 10.598383277098645
          },
          {
            "id": "utility:treatment:2048",
            "feature_id": "treatment:2048",
            "name": "Acton Sewerage Collection System and WWTF",
            "distance_km": 13.45468797273028
          }
        ],
        "truncated": {
          "water": false,
          "sewer": false
        }
      },
      "provenance": [
        {
          "dataset": "water",
          "data_version": "63b7c1c3-9661-4fed-a59f-ddbfff80c2e4"
        },
        {
          "dataset": "sewer",
          "data_version": "63b7c1c3-9661-4fed-a59f-ddbfff80c2e4"
        },
        {
          "dataset": "treatment",
          "data_version": "63b7c1c3-9661-4fed-a59f-ddbfff80c2e4"
        }
      ]
    }
  },
  "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 25027-b5684b78d6f9da86863b. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"25027-b5684b78d6f9da86863b"}],"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/25027-b5684b78d6f9da86863b

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("25027-b5684b78d6f9da86863b")}`, {
  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);

Worcester County data questions

How many parcels in Worcester County include year built?

About 270,000 of about 320,000 parcel records (84%) include year built.

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

Worcester 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 Worcester County?

Korzy tracks 3 data-center projects in Worcester County: 2 proposed and 1 operating. A /v1/lookup with the datacenters section lists projects within 10 km of any address or point.

How much power generation is in Worcester County?

About 190 operable power plants in Worcester County total about 2,000 MW of nameplate capacity, mainly natural gas, solar and battery and pumped storage.

Which water systems serve Worcester County?

Service areas of about 120 community water systems cover about 24% of Worcester County, and sewer service areas cover about 14%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

More featured counties

• Hampden County, MABorders Worcester County · about 160,000 parcels
• Middlesex County, MABorders Worcester County · about 530,000 parcels
• Norfolk County, MABorders Worcester County · about 250,000 parcels
• Hillsborough County, NHBorders Worcester County · about 140,000 parcels
• Providence County, RIBorders Worcester County · about 220,000 parcels
• Essex County, MAabout 270,000 parcels

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