Town Hall Address 80 W. Madison Ave. Dumont, NJ 07628 United States- Bergen County Website https://www.dumontnj.gov/ County Clerk 201-387-5024 80 W. Madison Ave. Dumont, NJ 07628 United States County Admin 201-387-5060 80 W. Madison Ave. Dumont, NJ 07628 United States Assessor 201-387-5030 80 W. Madison Ave. Dumont, NJ 07628 United States Tax Collector 201-387-5025 80 W. Madison Ave. Dumont, NJ 07628 United States Attorney 201-666-8282 80 W. Madison Ave. Dumont, NJ 07628 United States Mayor 201-387-5022 80 W. Madison Ave. Dumont, NJ 07628 United States Municipal Court 201-387-5032 80 W. Madison Ave. Dumont, NJ 07628 United States Town Hall Hours Monday - Thursday: 9am - 4:30pm Friday: 8:30am - 3:30pm County Bergen