| Lake County Courthouse | |
| Coordinates: | 44.0056°N -97.1114°W |
| Built: | 1935 |
| Architect: | Hugill & Blatherwick |
| Builder: | Jonason, S.W., & Co. |
| Architecture: | Moderne, Art Deco |
| Added: | February 10, 1993 |
| Area: | less than one acre |
| Mpsub: | County Courthouses of South Dakota MPS |
| Refnum: | 92001861 |
The Lake County Courthouse in Madison, South Dakota was built in 1935. It was listed on the National Register of Historic Places in 1993.
The courthouse is at the center of a square block which also includes a Public Safety Building, which is a jail.
It was designed by architects Hugill & Blatherwick in Art Deco style.[1]