Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 27, 2026 and September 30, 2026.
Hillsborough County, New Hampshire, has about 430,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Hillsborough County is held at the county jail, run by the Hillsborough County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Hillsborough County public records, Hillsborough County arrest records, Hillsborough County warrants, Hillsborough County criminal records, Hillsborough County court records, New Hampshire arrest records and New Hampshire inmate search.
Finding Someone in Custody in Hillsborough County
A person kept in custody after an arrest in Hillsborough County is held at the county jail, run by the Hillsborough County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Hillsborough County Sheriff's Office at hcnh.org/Departments/Sheriffs-Office-Main (page title: Sheriff's Office | Main), phone (603) 627-5610, 329 Mast Road Goffstown, NH 03045, Monday to Friday 8:00 AM - 4:00 PM, which answered when SearchSystems opened it on September 30, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at (603) 627-5610.
The Hillsborough County Jail by the Numbers
On an average day in 2023 the jail held about 340 people, up from about 320 in 2019. Its rated capacity in 2023 was 735 beds, and it ran at 46 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Hillsborough County has about 430,000 residents (2024 Census Bureau estimate), so the jail holds about 8 people for every 10,000 residents.
Who Books People Into the Hillsborough County Jail
The Hillsborough County Sheriff's Office and the agencies that report for Manchester and Nashua make the arrests that end in a booking in Hillsborough County.
The FBI's agency list also places one more agency in Hillsborough County: the Hillsborough County State Police (state police).
The largest arrest counts reported to the FBI were Manchester's 2,979 for 2025, Nashua's 2,754 for 2025 and the Hillsborough County Sheriff's Office's 1,196 for 2024.
Together, the 25 agencies in Hillsborough County with all twelve months of 2025 on file reported 9,065 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Hillsborough County arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the New Hampshire Department of Corrections lists its inmates at business.nh.gov/inmate_locator.
Frequently Asked Questions
How do I find an inmate in Hillsborough County?
Ask the Hillsborough County Sheriff's Office at (603) 627-5610; its jail page SearchSystems verified is at hcnh.org/Departments/Sheriffs-Office-Main.
How many people are in the Hillsborough County jail?
About 340 on an average day in 2023, the latest year in the Vera Institute's jail data, against a rated capacity of 735 beds.
What is the phone number for the Hillsborough County jail?
(603) 627-5610, the number on the page of the Hillsborough County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Hillsborough County go?
To a facility of the New Hampshire Department of Corrections; its inmate locator is at business.nh.gov/inmate_locator.
Is this the official Hillsborough County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.