Town Hall Address 500 W. Crescent Ave. Allendale, NJ 07401 United States- Bergen County Website http://www.allendalenj.gov County Clerk 201-818-4400 Ext. 203 500 W. Crescent Ave. Allendale, NJ 07401 United States County Admin 201-818-4400 Ext. 501 500 W. Crescent Ave. Allendale, NJ 07401 United States Assessor 201-818-4400 Ext. 210 500 W. Crescent Ave. Allendale, NJ 07401 United States Tax Collector 201-818-4400 Ext. 206 500 W. Crescent Ave. Allendale, NJ 07401 United States Attorney 201-497-6680 500 W. Crescent Ave. Allendale, NJ 07401 United States Mayor 201-818-4400 Ext. 200 500 W. Crescent Ave. Allendale, NJ 07401 United States Municipal Court 201-652-0699 333 Warren Ave. Ho Ho Kus, NJ 07423 United States Town Hall Hours Monday - Friday: 9:00 A.M. - 4:30 P.M. County Bergen