In 2018, Stanley County, SD had a population of 3k people with a median age of 41.2 and a median household income of $71,763. Between 2017 and 2018 the population of Stanley County, SD grew from 2,994 to 2,997, a 0.1% increase and its median household income grew from $63,233 to $71,763, a 13.5% increase.
The 5 largest ethnic groups in Stanley County, SD are White (Non-Hispanic) (84.3%), American Indian & Alaska Native (Non-Hispanic) (9.68%), Two+ (Non-Hispanic) (2.44%), White (Hispanic) (1.97%), and Native Hawaiian & Other Pacific Islander (Non-Hispanic) (1.17%). 0% of the households in Stanley County, SD speak a non-English language at home as their primary language, and 100% of the residents in Stanley County, SD are U.S. citizens.
In 2018, the median property value in Stanley County, SD was $165,800, and the homeownership rate was 80.9%. Most people in Stanley County, SD drove alone to work, and the average commute time was 14.4 minutes. The average car ownership in Stanley County, SD was 2 cars per household.