Courthouses in Newport, New Hampshire, the US. Courthouses locations in Newport, New Hampshire. Find the nearest courthouses locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Funeral home Insurance Lawyer Real estate School Travel University All courthouses in Newport Sullivan County Registry-Prbt Courthouse +1 603-863-3150 14 Main Street # 3, Newport, New Hampshire 03773 Write a review Phone Directions Sullivan County Superior Court Courthouse +1 603-863-3450 14 Main Street, Newport, New Hampshire 03773 Write a review Phone Website Directions