| Business | Phone |
| Closter Administrator 295 Closter Dock Rd, Closter 7624 | (201) 784-0760 |
| Closter Boro Ambulance Closter 7624 | (201) 768-3339 |
| Closter Boro Clerk Office 295 Closter Dock Rd, Closter 7624 | (201) 784-0600 |
| Closter Building Dept 277 Closter Dock Rd, Closter 7624 | (201) 784-0759 |
| Closter Planning Board 295 Closter Dock Rd, Closter 7624 | (201) 784-0757 |
| Closter Registrar Vital Stats 295 Closter Dock Rd, Closter 7624 | (201) 784-0752 |