In 2020, Stanley County, SD had a population of 3.06k people with a median age of 47.3 and a median household income of $71,602. Between 2019 and 2020 the population of Stanley County, SD grew from 3,017 to 3,058, a 1.36% increase and its median household income grew from $71,382 to $71,602, a 0.308% increase.
The 5 largest ethnic groups in Stanley County, SD are White (Non-Hispanic) (86.8%), White (Hispanic) (4.84%), American Indian & Alaska Native (Non-Hispanic) (4.05%), Two+ (Non-Hispanic) (2.65%), and Native Hawaiian & Other Pacific Islander (Non-Hispanic) (1.67%).
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 2020, the median property value in Stanley County, SD was $154,900, and the homeownership rate was 81.8%. Most people in Stanley County, SD drove alone to work, and the average commute time was 14.9 minutes. The average car ownership in Stanley County, SD was 2 cars per household.