Post offices serve all communities within a county, from city branch locations to rural contract postal units that serve smaller towns and unincorporated areas with essential mail services. There are 5 Post Office locations in County, South Dakota.

Residents of County should be aware that rural post offices and contract postal units may have limited hours compared to full-service branches. USPS provides a free package pickup service for all residents, including those in rural areas, which can eliminate the need to travel to a post office for outgoing packages.

List of Charles Mix County, South Dakota Post Office

Pickstown Post Office

View Details Call Now (605) 487-7770

Pickstown Post Office

Address
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Hours

Platte Post Office

View Details Call Now (605) 337-3491

Platte Post Office

Address
Get Direction
Hours

Lake Andes Post Office

View Details Call Now (605) 487-7411

Lake Andes Post Office

Address
Get Direction
Hours

Geddes Post Office

View Details Call Now (605) 337-2469

Geddes Post Office

Address
Get Direction
Hours

Wagner Post Office

View Details Call Now (605) 384-5508

Wagner Post Office

Address
Get Direction
Hours

Residents of County can use the USPS online location finder to identify the nearest post office, rural branch, or contract postal unit and check their individual hours. Enrolling in USPS Informed Delivery is free and lets all county residents preview incoming mail and packages via email or the USPS app each morning before delivery.

You may also find Post Office locations in neighboring counties including Bon Homme, Charles Mix.