Town Hall Address 100 Grasmere Ave. Interlaken, NJ 07712 United States- Monmouth County Website http://www.interlakenboro.com County Clerk 732-531-7405 100 Grasmere Ave. Interlaken, NJ 07712 United States Assessor 732-531-7405 100 Grasmere Ave. Interlaken, NJ 07712 United States Tax Collector 732-531-7405 100 Grasmere Ave. Interlaken, NJ 07712 United States Attorney 732-531-7405 100 Grasmere Ave. Interlaken, NJ 07712 United States Mayor 732-531-7405 100 Grasmere Ave. Interlaken, NJ 07712 United States Municipal Court 732-531-1343 190 Norwood Ave. P.O. Box 56 Deal, NJ 07723 United States County Monmouth