| Business | Phone |
| Leonia Boro Administrator 312 Broad Ave, Leonia 7605 | (201) 592-5741 |
| Leonia Borough Clerk 312 Broad Ave, Leonia 7605 | (201) 592-5752 |
| Leonia Building Inspector 312 Broad Ave, Leonia 7605 | (201) 592-5744 |
| Leonia Senior Citizens Center 305 Beechwood Pl, Leonia 7605 | (201) 592-5789 |
| Leonia Violations Dept 312 Broad Ave, Leonia 7605 | (201) 592-5768 |
| Property Maintenance Inspctns 312 Broad Ave, Leonia 7605 | (201) 592-5750 |