In 2017, McCook County, SD had a population of 5.52k people with a median age of 40.7 and a median household income of $60,808. Between 2016 and 2017 the population of McCook County, SD declined from 5,616 to 5,515, a -1.8% decrease and its median household income grew from $58,485 to $60,808, a 3.97% increase.
The 5 largest ethnic groups in McCook County, SD are White (Non-Hispanic) (94.6%), Some Other Race (Hispanic) (1.56%), White (Hispanic) (1.03%), Two or More Races (Non-Hispanic) (0.888%), and Black or African American (Non-Hispanic) (0.816%). N/A% of the people in McCook County, SD speak a non-English language, and 98.7% are U.S. citizens.
The median property value in McCook County, SD is $120,700, and the homeownership rate is 75%. Most people in McCook County, SD commute by Drove Alone, and the average commute time is 22.7 minutes. The average car ownership in McCook County, SD is 3 cars per household.