Post Offices List in Willmar City, Minnesota:
| Willmar Post Office | 401 Trott Ave Sw, Willmar, MN 56201 |
| Willmar Post Office | 401 Trott Ave Sw, Willmar, MN 56201 |
| Willmar Post Office | 401 Trott Ave Sw, Willmar, MN 56201 |
| Willmar Post Office | 401 Trott Ave Sw, Willmar, MN 56201 |