Town Hall Address 77 Main St. Stanhope, NJ 07874 United States- Sussex County Website http://www.stanhopenj.gov County Clerk 973-347-0159 Ext. 16 77 Main St. Stanhope, NJ 07874 United States County Admin 973-347-0159 Ext. 14 Stanhope, NJ 07874 United States Assessor 973-347-0159 Ext. 31 Wednesday: 12:00 P.M. - 3:00 P.M., & By Appointment 77 Main St. Stanhope, NJ 07874 United States Tax Collector 973-347-0159 Ext. 13 77 Main St. Stanhope, NJ 07874 United States Attorney 973-729-1880 77 Main St. Stanhope, NJ 07874 United States Mayor 973-347-0159 77 Main St. Stanhope, NJ 07874 United States Municipal Court 973-770-1200 111 River Styx Rd. Hopatcong, NJ 07843 United States County Sussex