None of the households in Oglala Lakota County, SD reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Oglala Lakota County, SD are U.S. citizens.
Oglala Lakota County, SD borders Cherry County, NE, Dawes County, NE, Sheridan County, NE, Bennett County, SD, Custer County, SD, Fall River County, SD, Jackson County, SD, and Pennington County, SD.