Town Hall Address 7 S. Grove Ave. P.O. Box 262 National Park, NJ 08063-1599 United States- Gloucester County Website http://www.nationalparknj.com County Clerk 856-845-3891 7 S. Grove Ave. P.O. Box 262 National Park, NJ 08063-1599 United States Assessor 856-307-6445 1200 N. Delsea Dr. Clayton, NJ 08312 United States Tax Collector 856-845-3891 7 S. Grove Ave. P.O. Box 262 National Park, NJ 08063-1599 United States Attorney 856-845-4600 7 S. Grove Ave. P.O. Box 262 National Park, NJ 08063-1599 United States Mayor 856-845-3891 7 S. Grove Ave. P.O. Box 262 National Park, NJ 08063-1599 United States Municipal Court 856-845-0120 Ext. 115 400 Crown Point Rd. Thorofare, NJ 08086 United States County Gloucester