In 2018, Custer County, SD had a population of 8.57k people with a median age of 54.3 and a median household income of $55,472. Between 2017 and 2018 the population of Custer County, SD grew from 8,519 to 8,573, a 0.634% increase and its median household income declined from $56,449 to $55,472, a -1.73% decrease.
The 5 largest ethnic groups in Custer County, SD are White (Non-Hispanic) (90.5%), American Indian & Alaska Native (Non-Hispanic) (3.34%), White (Hispanic) (2.78%), Two+ (Non-Hispanic) (2.18%), and Asian (Non-Hispanic) (0.42%). 0% of the households in Custer County, SD speak a non-English language at home as their primary language, and 98.6% of the residents in Custer County, SD are U.S. citizens.
In 2018, the median property value in Custer County, SD was $216,800, and the homeownership rate was 82.4%. Most people in Custer County, SD drove alone to work, and the average commute time was 25.4 minutes. The average car ownership in Custer County, SD was 2 cars per household.