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 6 Post Office locations in Hamlin County, South Dakota.

Residents of Hamlin 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 Hamlin County, South Dakota Post Office

Bryant Post Office

View Details Call Now (605) 628-2581

Bryant Post Office

Address
Get Direction
Hours

Estelline Post Office

View Details Call Now (605) 873-2433

Estelline Post Office

Address
Get Direction
Hours

Hazel Post Office

Address
Get Direction
Hours

Castlewood Post Office

View Details Call Now (605) 793-2658

Castlewood Post Office

Address
Get Direction
Hours

Hayti Post Office

Address
Get Direction
Hours

Lake Norden Post Office

View Details Call Now (605) 785-3904

Lake Norden Post Office

Address
Get Direction
Hours

Residents of Hamlin 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 Kingsbury, Hamlin, Clark.