In 2023, Stanley County, SD had a population of 3.01k people with a median age of 43.7 and a median household income of $77,000. Between 2022 and 2023 the population of Stanley County, SD grew from 2,979 to 3,012, a 1.11% increase and its median household income declined from $82,298 to $77,000, a −6.44% decrease.
The 5 largest ethnic groups in Stanley County, SD are White (Non-Hispanic) (90%), Two Races Excluding Other, & Three or More Races (Non-Hispanic) (3.98%), American Indian & Alaska Native (Non-Hispanic) (2.52%), White (Hispanic) (0.996%), and Two Races Excluding Other, & Three or More Races (Hispanic) (0.896%).
None of the households in Stanley 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.
100% of the residents in Stanley County, SD are U.S. citizens.
In 2023, the median property value in Stanley County, SD was $169,900, and the homeownership rate was 79.3%.
Most people in Stanley County, SD drove alone to work, and the average commute time was 14.8 minutes. The average car ownership in Stanley County, SD was 2 cars per household.
Stanley County, SD borders Dewey County, SD, Haakon County, SD, Hughes County, SD, Jones County, SD, Lyman County, SD, Sully County, SD, and Ziebach County, SD.