Clark County Post Offices

201 Main St
Bradley, South Dakota 57217

531 415th Ave
Carpenter, South Dakota 57322

111 N Smith St
Clark, South Dakota 57225

127 Main St W
Garden City, South Dakota 57236

211 Flower St
Raymond, South Dakota 57258

214 Garfield Ave
Willow Lake, South Dakota 57278

Clark County

There are 6 US Post Offices in Clark County serving a total of 3,664 residents equating to 611 residents per post office. It's estimated that approximately 5,848 packages are handled across the 6 county post offices annually. Clark County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 3,691. Its county seat is Clark. The county was created in 1873 and organized in 1881. It was named for Newton Clark, a South Dakota legislator in 1873."