| Business | Phone |
| Clinton Township Tax Assessor 1370 State Route 31 N, Annandale 8801 | (908) 735-2053 |
| Clinton Township Tax Collector 1370 State Route 31 N, Annandale 8801 | (908) 735-5242 |
| Clinton Twp Treasurer 1370 State Route 31 N, Annandale 8801 | (908) 735-8508 |