In 2022, Buffalo County, SD had a population of 1.86k people with a median age of 24 and a median household income of $42,917. Between 2021 and 2022 the population of Buffalo County, SD declined from 1,974 to 1,859, a −5.83% decrease and its median household income grew from $38,523 to $42,917, a 11.4% increase.
The 5 largest ethnic groups in Buffalo County, SD are American Indian & Alaska Native (Non-Hispanic) (72.4%), White (Non-Hispanic) (18.5%), American Indian & Alaska Native (Hispanic) (6.78%), Two+ (Hispanic) (1.02%), and Other (Non-Hispanic) (0.861%).
None of the households in Buffalo 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 Buffalo County, SD are U.S. citizens.
In 2022, the median property value in Buffalo County, SD was $103,800, and the homeownership rate was 49%.
Most people in Buffalo County, SD drove alone to work, and the average commute time was 14.7 minutes. The average car ownership in Buffalo County, SD was 2 cars per household.
Buffalo County, SD borders Brule County, SD, Hand County, SD, Hyde County, SD, Jerauld County, SD, and Lyman County, SD.