Marshall County

Marshall County is an administrative division in northeastern South Dakota with rolling terrain dotted by numerous lakes and small communities. The region features a mix of agricultural land and natural water features that shape its character.

The county was established in 1885 and named for Marshall Vincent, an early settler who claimed land near Andover. This founding coincided with the broader wave of settlement across northern territories.

Twenty-five designated townships form the county's structure, with the city of Britton serving as both the county seat and largest population center.

State Highways 10, 25, and 27 run through the area and connect its communities together. These roads provide access to services and make it easy to explore different parts of the county.

Fort Sisseton Historic State Park sits within the county and preserves military buildings from the 1800s. The park is surrounded by the area's lakes, creating a blend of history and natural landscape.

Location: South Dakota

Inception: 1885

Capital city: Britton

Shares border with: Sargent County, Roberts County, Day County, Brown County, Richland County

Website: http://marshall.sdcounties.org

GPS coordinates: 45.76000,-97.60000

Latest update: December 10, 2025 16:03