Knox County is named for Henry Knox, who was the first United States Secretary of War.
Created: February 10, 1857
County Seat:
Niobrara 1857 – 1902
Center 1902 – present
County Courthouse – Center
Location: NW – Main Street / Brazile Street
Built: 1934
Style: Art Deco and Federal
Architect: Oliver Prosser
Contractor: E P Ekman of Wausa and Oliver Prosser
Description: The building faces east and is a two story dark brown-red colored brick and concrete structure. The building is located on landscaped grounds in the center of the town. The east front has a central entrance with glassed porch on the first story. On the second story is a large window. The base of the building is concrete. The roof line is flat. In 2013 to 2014 a Courthouse Annex was constructed. The architect was Mannes Architects of Yankton, South Dakota and the contractor was RaDec Construction Company Inc. of Hartington.
Note: The courthouse was constructed with prison labor, who made all of the bricks. The cost of construction was $461,398.58.
Note: The first courthouse was a two story frame building constructed in 1902
Courthouses:
N – Charles Mix County, South Dakota, Bon Homme County, South Dakota and Yankton County, South Dakota
E – Cedar County
S – Pierce County and Antelope County
W – Holt County and Boyd County
County Courthouse
Courthouse with addition
Photos taken 2007 and 2016