| Business | Phone |
| Mount Arlington Animal License 419 Howard Blvd, Mt Arlington 7856 | (973) 398-4726 |
| Mount Arlington Boro Adm 419 Howard Blvd, Mt Arlington 7856 | (973) 398-9805 |
| Mount Arlington Boro Clerk 419 Howard Blvd, Mt Arlington 7856 | (973) 398-6832 |
| Mount Arlington Finance Office 419 Howard Blvd, Mt Arlington 7856 | (973) 398-0150 |
| Mount Arlington Health Board 419 Howard Blvd, Mt Arlington 7856 | (973) 398-4450 |