The Portsmouth Town Hall provides services and information to the town's more than 17,000 residents.
The Town Hall houses several municipal offices, including the Town Administrator's Office, the Town Clerk's Office, Building Inspection, Canvassing Authority, Emergency Management, Finance Office, Personnel Office, Planning Board, Tax Assessor and Tax Collector Offices, Town Planner's Office and Zoning Enforcement Officer.
The Town Hall is also the location of the Probate Court and the Town Council chambers.