| Business | Phone |
| Us Post Office 1775 10th St, Niagara Falls 14305 | (716) 285-6094 |
| Us Post Office 2020 Pine Ave, Niagara Falls 14301 | (716) 284-0233 |
| Us Post Office 304 3rd St, Niagara Falls 14303 | (716) 285-6723 |
| Us Post Office 615 Main St, Niagara Falls 14301 | (716) 285-7561 |
| Us Post Office 9860 Niagara Falls Blvd, Niagara Falls 14304 | (716) 297-1820 |