| Business | Phone |
| Dumont Baby Keep Well 50 Washington Ave, Dumont 7628 | (201) 387-5029 |
| Dumont Boro Building Dept 50 Washington Ave, Dumont 7628 | (201) 387-5034 |
| Dumont Borough Clerk 50 Washington Ave, Dumont 7628 | (201) 387-5023 |
| Dumont Senior Citizens 39 Dumont Ave, Dumont 7628 | (201) 387-5040 |
| Dumont Senior Citizens Housing Aladdin Ave, Dumont 7628 | (201) 387-9107 |
| Dumont Violations Clerk 50 Washington Ave, Dumont 7628 | (201) 387-5032 |