In 2017, Buffalo County, SD had a population of 2.05k people with a median age of 25.3 and a median household income of $30,500. Between 2016 and 2017 the population of Buffalo County, SD declined from 2,052 to 2,048, a -0.195% decrease and its median household income declined from $31,293 to $30,500, a -2.53% decrease.
The 5 largest ethnic groups in Buffalo County, SD are American Indian & Alaska Native (Non-Hispanic) (81.3%), White (Non-Hispanic) (11.8%), American Indian & Alaska Native (Hispanic) (2.39%), Two or More Races (Non-Hispanic) (2.2%), and Native Hawaiian & Other Pacific Islander (Non-Hispanic) (1.95%). N/A% of the people in Buffalo County, SD speak a non-English language, and 100% are U.S. citizens.
The median property value in Buffalo County, SD is $51,400, and the homeownership rate is 41.9%. Most people in Buffalo County, SD commute by Drove Alone, and the average commute time is 12.3 minutes. The average car ownership in Buffalo County, SD is 2 cars per household.