1990 South Dakota gubernatorial election

The 1990 South Dakota gubernatorial election took place on November 6, 1990, to elect a Governor of South Dakota. Republican Governor George S. Mickelson was re-elected, defeating Democratic nominee Bob L. Samuelson. As of 2024, this was the last time Oglala County and Todd County voted for a Republican gubernatorial candidate. Mickelson died in a plane crash near Zwingle, Iowa on April 19, 1993.

Candidates

 * George S. Mickelson, incumbent Governor of South Dakota

Candidates

 * Bob L. Samuelson, former state senator