Clay County, Administrative county in South Dakota, United States.
Clay County extends across 417 square miles of land in southeastern South Dakota, bordered by the Missouri River along its southern boundary.
The territorial legislature established Clay County in 1862, appointing commissioners and officers to manage the newly formed administrative division.
The University of South Dakota in Vermillion stands as the primary educational center of Clay County, shaping regional academic development since 1882.
The Clay County Courthouse at 211 West Main Street in Vermillion provides administrative services, including assessor, auditor, and election offices.
With only 417 square miles of total area, Clay County holds the distinction of being the smallest county by land size in South Dakota.
Location: South Dakota
Inception: 1862
Capital city: Vermillion
Shares border with: Turner County, Lincoln County, Union County, Dixon County, Cedar County, Yankton County
Website: http://claycountysd.org
GPS coordinates: 42.92000,-96.97000
Latest update: March 12, 2025 04:43
National Music Museum
15.7 km
Spirit Mound Historic Prairie
5.2 km
Immaculate Conception Catholic Church and Rectory
25.8 km
Inman House
16.1 km
St. Agnes Catholic Church
15.7 km
Governor John L. Pennington House
34.3 km
First Baptist Church of Vermillion
16 km
Governor William J. Bulow House
23.9 km
United Church of Christ
25.2 km
First Methodist Episcopal Church
16 km
United Brethren Church
23.6 km
Vangen Church
24 km
Saints Philip and James Parochial School
25.1 km
Sample–Lindblaum House
15.2 km
Austin–Whittemore House
16 km
Downtown Vermillion Historic District
16 km
Aggergaard Manor
24 km
Baker House
32.5 km
Van Osdel House
25.3 km
Burns House
34.4 km
Clay County Courthouse
15.9 km
First National Bank Building of Vermillion
16 km
Bruce-Donaldson House
34.6 km
William Andre House
16.9 km
South Dakota Department of Transportation Bridge No. 63-210-282
19.7 km
Linden House
16.7 km
Forest Avenue Historic District
16.3 km
Clay County Park
16.7 kmReviews
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