Town Hall Address 201 Washington Crossing Pennington Rd. Titusville, NJ 08560-1410 United States- Mercer County Website https://www.hopewelltwp.org/ County Clerk 609-737-0605 201 Washington Crossing Pennington Rd. Titusville, NJ 08560-1410 United States County Admin 609-737-0605 Titusville, NJ 08560-1410 United States Assessor 609-737-0605 201 Washington Crossing Pennington Rd. Titusville, NJ 08560-1410 United States Tax Collector 609-737-0605 201 Washington Crossing Pennington Rd. Titusville, NJ 08560-1410 United States Attorney 609-896-4222 201 Washington Crossing Pennington Rd. Titusville, NJ 08560-1410 United States Mayor 609-737-2119 201 Washington Crossing Pennington Rd. Titusville, NJ 08560-1410 United States Municipal Court 609-737-1035 201 Washington Crossing Pennington Rd. Titusville, NJ 08560-1410 United States County Mercer