Laurium Post Office
75 3rd St, Calumet, MI 49913
Retail Hours
| Sunday | Closed |
| Monday | 9:00 AM - 10:00 AM |
| Tuesday | 9:00 AM - 10:00 AM |
| Wednesday | Closed |
| Thursday | 9:00 AM - 10:00 AM |
| Friday | 9:00 AM - 10:00 AM |
| Saturday | Closed |
Contact Info
| Phone | 906-337-3210 |
| Fax | 906-337-0104 |
| TTY | 877-889-2457 |
| Toll Free | 1-800-275-8777 (1-800-Ask-USPS®) |
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