Police and sheriff · New Hampshire

Law Enforcement Agencies in Rockingham County, New Hampshire

39 agenciesFBI UCR list

The FBI's Uniform Crime Reporting program lists 39 law enforcement agencies in Rockingham County, New Hampshire: the county sheriff's office, 37 city or town police departments and 1 state police post.

Sheriff's Office and County Police in Rockingham County

City and Town Police Departments in Rockingham County

State Police in Rockingham County

Where People Arrested in Rockingham County Are Held

In most U.S. counties, adults arrested by city police, the sheriff or state troopers are booked into the county jail first. Some larger cities run their own holding jail, so if a person is not on the county roster, call the arresting department.

Law Enforcement in Other New Hampshire Counties

Agency names, types and ORI codes come from the FBI Crime Data Explorer agency list, retrieved November 2026. NIBRS dates show when an agency began reporting incident-level crime data to the FBI.

Frequently Asked Questions

How many police departments are in Rockingham County?
The FBI lists 39 law enforcement agencies in Rockingham County, including 37 city or town police departments. The full list is on this page.
Who runs the jail in Rockingham County?
In most counties the sheriff runs the county jail. In Rockingham County that is the Rockingham County Sheriff's Office. See Rockingham County Department of Corrections on this site for the jail's roster or contact details.
What is an ORI number?
An ORI is the nine-character identifier the FBI assigns to each law enforcement agency for crime reporting, for example NH0080000. It is useful when you request records or read crime statistics.