Grand Marsh Post Office
644 County Rd E, Grand Marsh, WI 53936
Retail Hours
| Sunday | Closed |
| Monday | 10:00 AM - 2:00 PM |
| Tuesday | 10:00 AM - 2:00 PM |
| Wednesday | 10:00 AM - 2:00 PM |
| Thursday | 10:00 AM - 2:00 PM |
| Friday | 10:00 AM - 2:00 PM |
| Saturday | 9:00 AM - 10:45 AM |
Contact Info
| Phone | 608-339-6113 |
| Fax | |
| TTY | 877-889-2457 |
| Toll Free | 1-800-275-8777 (1-800-Ask-USPS®) |
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