Onaka Map
Onaka is a town in Faulk County, South Dakota, United States. The population was 15 at the 2010 census.
Onaka was founded in 1907 as a station stop on a branch line of the Minneapolis and St. Louis Railway built that year between Conde and LeBeau, South Dakota. Railway service to Onaka ended in 1940.
Onaka is located at 45°11?33?N 99°28?1?W / 45.1925°N 99.46694°W / 45.1925; -99.46694 (45.192560, -99.466932).
Nearby cities include Hoven, Roscoe, Faulkton, Tolstoy.