Hillsborough County, New Hampshire

New Hampshire

Key Facts

State
New Hampshire
Population
427,354

About Hillsborough County

Hillsborough County is a county in New Hampshire (NH) with a population of approximately 427,354 residents. The county seat is .

Hillsborough County is one of the counties that make up New Hampshire, providing local government services including law enforcement, property records, courts, and public infrastructure to its residents.

County Details

County
Hillsborough County
State
New Hampshire (NH)
Population
427,354
County Seat

Local Government

Hillsborough County residents are served by county-level government that typically includes:

  • County commission or board of supervisors — Elected officials responsible for county governance, budgets, and policy
  • Sheriff's office — Provides law enforcement services throughout Hillsborough County
  • County clerk — Manages vital records, elections, and property records
  • County courts — The judicial branch serving Hillsborough County residents
  • Tax assessor — Handles property tax assessments and collections

Frequently Asked Questions

What is the population of Hillsborough County?

Hillsborough County has an approximate population of 427,354 residents.

What is the county seat of Hillsborough County?

The county seat of Hillsborough County is .

What state is Hillsborough County in?

Hillsborough County is located in New Hampshire (NH).