Hillsborough County, NH parcel and infrastructure data API

Parcel coverage in Hillsborough County

About 140,000 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:

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

Infrastructure in and around Hillsborough County

Example requests for Hillsborough 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 292 ROUTE 101, Bedford, NH 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":"292 ROUTE 101, Bedford, NH","sections":["utilities"]}' \
  https://api.korzy.co/v1/lookup

import os
import requests

response = requests.post(
    "https://api.korzy.co/v1/lookup",
    json={"address": "292 ROUTE 101, Bedford, NH", "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": -71.531988492538,
    "latitude": 42.92835215,
    "address": "292 ROUTE 101, Bedford",
    "match_type": "exact"
  },
  "parcels": {
    "records": [
      {
        "id": "33011-f067dee5cf2708ede083",
        "korzy_id": "33011-f067dee5cf2708ede083",
        "parcelid": "27-31-3",
        "parceladdr": "292 ROUTE 101",
        "parcelcity": "Bedford",
        "situs_zip": "03110",
        "statefp": "33",
        "geoid": "33011",
        "longitude": -71.531988492538,
        "latitude": 42.92835215,
        "usedesc": "OFFICE BLD MDL-94",
        "land_use_code": "33",
        "yearbuilt": 1984,
        "bldgsqft": 11878,
        "taxacres": 3.29,
        "totalvalue": 1041300,
        "saledate": "2016-03-21",
        "saleamt": 967533,
        "updated": "2026-11-03"
      }
    ],
    "truncated": false
  },
  "sections": {
    "utilities": {
      "status": "ok",
      "data": {
        "treatment_plants": [
          {
            "id": "utility:treatment:13788",
            "feature_id": "treatment:13788",
            "name": "Manchester WWTF",
            "distance_km": 6.2426867168024796
          },
          {
            "id": "utility:treatment:2475",
            "feature_id": "treatment:2475",
            "name": "Milford WWTF",
            "distance_km": 13.621538988353121
          },
          {
            "id": "utility:treatment:2474",
            "feature_id": "treatment:2474",
            "name": "Merrimack WWTF",
            "distance_km": 14.233500122278848
          }
        ],
        "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 33011-f067dee5cf2708ede083. 1 credit.

curl --fail-with-body -sS \
  -H "Authorization: Bearer $KORZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"items":[{"korzy_id":"33011-f067dee5cf2708ede083"}],"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/33011-f067dee5cf2708ede083

const response = await fetch(`https://api.korzy.co/v1/records/${encodeURIComponent("33011-f067dee5cf2708ede083")}`, {
  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);

Hillsborough County data questions

How many parcels in Hillsborough County include year built?

About 120,000 of about 140,000 parcel records (83%) include year built.

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

Hillsborough 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 Hillsborough County?

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

How much power generation is in Hillsborough County?

9 operable power plants in Hillsborough County total about 65 MW of nameplate capacity, mainly wind, hydro and other fuels.

Which water systems serve Hillsborough County?

Service areas of about 80 community water systems cover about 11% of Hillsborough County, and sewer service areas cover about 5%. A /v1/lookup with the utilities section returns the water and sewer matches at an address or point.

More featured counties

• Essex County, MABorders Hillsborough County · about 270,000 parcels
• Middlesex County, MABorders Hillsborough County · about 530,000 parcels
• Worcester County, MABorders Hillsborough County · about 320,000 parcels
• Rockingham County, NHBorders Hillsborough County · about 140,000 parcels

All featured New Hampshire counties