United States Postal Service
Main:
(800) 275-8777
Alt: (605) 375-3236
Fax: (605) 357-4906
Alt: (605) 375-3236
Fax: (605) 357-4906
109 1st St W, Buffalo, South Dakota, 57720
Business hours
| Monday | 8:30am to 1:30pm , 2:30pm to 5:00pm |
| Tuesday | 8:30am to 1:30pm , 2:30pm to 5:00pm |
| Wednesday | 8:30am to 1:30pm , 2:30pm to 5:00pm |
| Thursday | 8:30am to 1:30pm , 2:30pm to 5:00pm |
| Friday | 8:30am to 1:30pm , 2:30pm to 5:00pm |
| Saturday | 10:45am to 11:45am |
| Sunday | - |
About us
Visit your local Post Office™ at 109 1st St W to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office™ boxes, passports, gift cards, and more
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