Oelrichs (Lakota: šuŋkpȟáwaksa; "Severed Horse Head") is a town in Fall River County, South Dakota, United States. The population was 117 at the 2020 census.
History
thumb|left|Harry Oelrichs (second from left) speaking with tribal leaders in 1887
left|thumb|St. Martin's Catholic Church
Oelrichs was laid out in 1885. The town was founded by Henry (Harry) Oelrichs, superintendent of the Anglo-American Cattle Company. A post office called Oelrichs has been in operation since 1885.
Geography
According to the United States Census Bureau, the town has a total area of , all land.
Climate
Demographics
2010 census
As of the census of 2010, there were 126 people, 61 households, and 38 families residing in the town. The population density was . There were 74 housing units at an average density of . The racial makeup of the town was 79.4% White, 18.3% Native American, and 2.4% from two or more races.
There were 61 households, of which 19.7% had children under the age of 18 living with them, 41.0% were married couples living together, 19.7% had a female householder with no husband present, 1.6% had a male householder with no wife present, and 37.7% were non-families. 34.4% of all households were made up of individuals, and 19.7% had someone living alone who was 65 years of age or older. The average household size was 2.07 and the average family size was 2.61.
The median age in the town was 53 years. 18.3% of residents were under the age of 18; 2.4% were between the ages of 18 and 24; 22.2% were from 25 to 44; 34.1% were from 45 to 64; and 23% were 65 years of age or older. The gender makeup of the town was 47.6% male and 52.4% female.
2000 census
As of the census