Town Hall Address 141 Gould Ave. North Caldwell, NJ 07006 United States- Essex County Website http://www.northcaldwell.org County Admin 973-228-6410 North Caldwell, NJ 07006 United States Assessor 973-228-6410 141 Gould Ave. North Caldwell, NJ 07006 United States Tax Collector 973-228-6410 141 Gould Ave. North Caldwell, NJ 07006 United States Attorney 973-661-0710 141 Gould Ave. North Caldwell, NJ 07006 United States Mayor 973-228-6410 141 Gould Ave. North Caldwell, NJ 07006 United States Municipal Court 973-228-6420 141 Gould Ave. North Caldwell, NJ 07006-4213 United States County Essex