Lyon County

US States / H-L / Iowa / Lyon County

Lyon County is named for Nathaniel Lyon, a soldier from Iowa, who was the first United States general killed in the American Civil War.


Created:  January 15, 1851

County Seat:

Rock Rapids 1851 – present


County Courthouse – Rock Rapids


Location:  206 South 2nd Avenue / Marshall Street

Built:  1915 – 1916

Style:  Classical Revival

Architect:  Joseph Schwartz

Contractor:  Amwold Construction


Description: The building faces north and is a three story gray colored stone and concrete structure. The building is located on landscaped grounds in the center of the city. The north front has a projecting entrance section in the center. There are eight columns rising from the second story to the top of the third story with recessed windows. A cornice runs below the wide band along the roof line. The roof line is flat.


Note:  The first courthouse was built in 1875 at a cost of $15,000. The cost of construction of the second and present courthouse was $109,695.



N – Minnehaha County, South Dakota, Rock County, Minnesota and Nobles County, Minnesota

E – Osceola County

S – Sioux County

W – Lincoln County, South Dakota





County Courthouse
















Photos taken 2007