Post Offices List in Pierz City, Minnesota:
| Pierz Post Office | 118 Main St S, Pierz, MN 56364 |
| Lastrup Post Office | 19291 285th Ave, Pierz, MN 56364 |
| Pierz Post Office | 118 Main St S, Pierz, MN 56364 |
| Lastrup Post Office | 19291 285th Ave, Pierz, MN 56364 |