Courthouses in Harrison, New Jersey, the US. Courthouses locations in Harrison, New Jersey. 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 All courthouses in Harrison Harrison Magistrate Courthouse +1 973-268-2455 318 Harrison Avenue, Harrison, New Jersey 07029 Write a review Phone Directions Harrison Municipal Court Clerk Courthouse +1 973-268-2453 326 Harrison Avenue, Harrison, New Jersey 07029 Write a review Phone Website Directions