Town Hall Address 325 N. Main St. Manville, NJ 08835 United States- Somerset County Website https://www.manvillenj.org County Clerk 908-725-9478 Ext. 103 325 N. Main St. Manville, NJ 08835 United States County Admin 908-725-9478 Ext. 103 325 N. Main St. NJ 8835 United States Assessor 908-725-9478 Ext. 109 325 N. Main St. Manville, NJ 08835 United States Tax Collector 908-725-9478 Ext. 120 325 N. Main St. Manville, NJ 08835 United States Attorney 908-704-8800 325 N. Main St. Manville, NJ 08835 United States Mayor 908-725-9478 325 N. Main St. Manville, NJ 08835 United States Municipal Court 908-369-3532 379 S. Branch Rd. Hillsborough, NJ 08844 United States Town Hall Hours Monday 9 a.m. to 7 p.m. Tuesday 9 a.m. to 5 p.m. Wednesday 9 a.m. to 5 p.m. Thursday 9 a.m. to 5 p.m. Friday 9 a.m. to 3 p.m. County Somerset