Town Hall Address 350 Hudson Ave. Washington Township, NJ 07676 United States- Bergen County Website http://www.twpofwashington.us County Clerk 201-664-4425 350 Hudson Ave. Washington Township, NJ 07676 United States County Admin 201-664-4404 350 Hudson Ave. Washington Township, NJ 07676 United States Assessor 201-664-4404 Monday: 9:00 A.M. - 12:00 P.M. 350 Hudson Ave. Washington Township, NJ 07676 United States Tax Collector 201-666-8797 350 Hudson Ave. Washington Township, NJ 07676 United States Attorney 201-712-1122 350 Hudson Ave. Washington Township, NJ 07676 United States Mayor 201-664-4404 350 Hudson Ave. Washington Township, NJ 07676 United States Municipal Court 201-664-2488 350 Hudson Ave. Washington Township, NJ 07676 United States Town Hall Hours Monday - Friday: 8:30 A.M. - 4:30 P.M. County Bergen