In 2017, Bennett County, SD had a population of 3.44k people with a median age of 28.8 and a median household income of $45,725. Between 2016 and 2017 the population of Bennett County, SD declined from 3,445 to 3,440, a -0.145% decrease and its median household income declined from $45,820 to $45,725, a -0.207% decrease.
The 5 largest ethnic groups in Bennett County, SD are American Indian & Alaska Native (Non-Hispanic) (47.2%), White (Non-Hispanic) (31%), Two or More Races (Non-Hispanic) (14.1%), Two or More Races (Hispanic) (4.48%), and American Indian & Alaska Native (Hispanic) (1.66%). N/A% of the people in Bennett County, SD speak a non-English language, and 99.6% are U.S. citizens.
The median property value in Bennett County, SD is $69,000, and the homeownership rate is 60.8%. Most people in Bennett County, SD commute by Drove Alone, and the average commute time is 15.4 minutes. The average car ownership in Bennett County, SD is 2 cars per household.