In 2021, Custer County, SD had a population of 8.36k people with a median age of 55.8 and a median household income of $68,736. Between 2020 and 2021 the population of Custer County, SD declined from 8,826 to 8,360, a −5.28% decrease and its median household income grew from $64,556 to $68,736, a 6.47% increase.
The 5 largest ethnic groups in Custer County, SD are White (Non-Hispanic) (88.4%), Two+ (Non-Hispanic) (3.28%), White (Hispanic) (2.97%), American Indian & Alaska Native (Non-Hispanic) (2.86%), and Two+ (Hispanic) (0.981%).
None of the households in Custer 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 Custer County, SD are U.S. citizens.
In 2021, the median property value in Custer County, SD was $255,500, and the homeownership rate was 83.1%.
Most people in Custer County, SD drove alone to work, and the average commute time was 30.1 minutes. The average car ownership in Custer County, SD was 2 cars per household.
Custer County, SD borders Fall River County, SD, Oglala Lakota County, SD, Pennington County, SD, Niobrara County, WY, and Weston County, WY.