In 2021, Bennett County, SD had a population of 3.41k people with a median age of 26 and a median household income of $40,664. Between 2020 and 2021 the population of Bennett County, SD declined from 3,430 to 3,411, a −0.554% decrease and its median household income declined from $41,887 to $40,664, a −2.92% decrease.
The 5 largest ethnic groups in Bennett County, SD are American Indian & Alaska Native (Non-Hispanic) (53%), White (Non-Hispanic) (32.3%), Two+ (Non-Hispanic) (4.72%), American Indian & Alaska Native (Hispanic) (3.99%), and White (Hispanic) (2.58%).
None of the households in Bennett 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.
99.2% of the residents in Bennett County, SD are U.S. citizens.
In 2021, the median property value in Bennett County, SD was $116,000, and the homeownership rate was 55.5%.
Most people in Bennett County, SD drove alone to work, and the average commute time was 12.4 minutes. The average car ownership in Bennett County, SD was 2 cars per household.
Bennett County, SD borders Cherry County, NE, Jackson County, SD, Mellette County, SD, Oglala Lakota County, SD, and Todd County, SD.