| Business | Phone |
| Harrison Township Historical 62 S Main St, Mullica Hill 8062 | (856) 478-4949 |
| Harrison Township Sewer Plant 40 Woodland Ave, Mullica Hill 8062 | (856) 478-4333 |
| Harrison Twp Clerk 114 Bridgeton Pike, Mullica Hill 8062 | (856) 478-4111 |
| Harrison Twp Municipal Bldg 144 Bridgeton Pike, Mullica Hill 8062 | (856) 478-4111 |
| Harrison Twp Office 120 N Main St, Mullica Hill 8062 | (856) 223-1517 |
| Harrison Twp Planning 114 Bridgeton Pike, Mullica Hill 8062 | (856) 478-6522 |