In 2020, Charles Mix County, SD had a population of 9.32k people with a median age of 36.3 and a median household income of $52,348. Between 2019 and 2020 the population of Charles Mix County, SD declined from 9,349 to 9,324, a −0.267% decrease and its median household income grew from $50,481 to $52,348, a 3.7% increase.
The 5 largest ethnic groups in Charles Mix County, SD are White (Non-Hispanic) (62.4%), American Indian & Alaska Native (Non-Hispanic) (29%), Two+ (Non-Hispanic) (4.11%), American Indian & Alaska Native (Hispanic) (2.2%), and Two+ (Hispanic) (0.804%).
None of the households in Charles Mix 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.
99.6% of the residents in Charles Mix County, SD are U.S. citizens.
In 2020, the median property value in Charles Mix County, SD was $127,900, and the homeownership rate was 70.3%. Most people in Charles Mix County, SD drove alone to work, and the average commute time was 13.2 minutes. The average car ownership in Charles Mix County, SD was 2 cars per household.