Town Hall Address 964 Stillwater Rd. Newton, NJ 07860 United States- Sussex County Website https://stillwatertownshipnj.com/ County Clerk 973-383-9484 Monday - Friday: 8:00 A.M. - 4:00 P.M. 964 Stillwater Rd. Newton, NJ 07860 United States Assessor 973-383-9484 Thursday: 8:00 A.M. - 4:00 P.M. 964 Stillwater Rd. Newton, NJ 07860 United States Tax Collector 973-383-9484 Tuesday, Wednesday, & Thursday: 1:00 P.M. - 4:00 P.M. 964 Stillwater Rd. Newton, NJ 07860 United States Attorney 973-729-1880 964 Stillwater Rd. Newton, NJ 07860 United States Mayor 973-383-9484 964 Stillwater Rd. Newton, NJ 07860 United States Municipal Court 973-875-7310 888 Rt. 23 Wantage, NJ 07461 United States Town Hall Hours Mon-Fri, 8am-4pm County Sussex