Onaka (Dakota: oyanka; "place") is a town in Faulk County, South Dakota, United States. The population was 13 at the 2020 census.
History
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.
Geography
According to the United States Census Bureau, the town has a total area of , of which is land and is water.
Demographics
2010 census
As of the census of 2010, there were 15 people, 10 households, and 3 families residing in the town. The population density was . There were 22 housing units at an average density of . The racial makeup of the town was 100.0% White.
There were 10 households, of which 10.0% had children under the age of 18 living with them, 30.0% were married couples living together, and 70.0% were non-families. 70.0% of all households were made up of individuals, and 40% had someone living alone who was 65 years of age or older. The average household size was 1.50 and the average family size was 2.67.
The median age in the town was 61.5 years. 13.3% of residents were under the age of 18; 0% were between the ages of 18 and 24; 13.4% were from 25 to 44; 46.8% were from 45 to 64; and 26.7% were 65 years of age or older. The gender makeup of the town was 53.3% male and 46.7% female.
2000 census
As of the census