Town Hall Address 152 Washington Ave. Belleville, NJ 07109-2541 United States- Essex County Website http://www.bellevillenj.org County Clerk 973-450-3302 Monday - Friday: 8:30 A.M. - 4:00 P.M. 152 Washington Ave. Belleville, NJ 07109-2541 United States County Manager 973-450-3322 152 Washington Ave. Belleville, NJ 07109-2541 United States Assessor 973-450-3304 152 Washington Ave. Belleville, NJ 07109-2541 United States Tax Collector 973-450-3342 Monday - Friday: 8:30 A.M. - 4:00 P.M. 152 Washington Ave. Belleville, NJ 07109-2541 United States Attorney 973-450-3314 152 Washington Ave. Belleville, NJ 07109-2541 United States Mayor 973-450-3345 152 Washington Ave. Belleville, NJ 07109-2541 United States Municipal Court 973-450-3319 152 Washington Ave. Belleville, NJ 07109-2541 United States County Essex