In 2017, Union County, SD had a population of 14.9k people with a median age of 41.1 and a median household income of $65,434. Between 2016 and 2017 the population of Union County, SD grew from 14,842 to 14,929, a 0.586% increase and its median household income grew from $63,890 to $65,434, a 2.42% increase.
The 5 largest ethnic groups in Union County, SD are White (Non-Hispanic) (92.8%), Two or More Races (Non-Hispanic) (1.87%), White (Hispanic) (1.43%), Asian (Non-Hispanic) (1.03%), and Some Other Race (Hispanic) (0.857%). N/A% of the people in Union County, SD speak a non-English language, and 98.7% are U.S. citizens.
The median property value in Union County, SD is $161,300, and the homeownership rate is 73.2%. Most people in Union County, SD commute by Drove Alone, and the average commute time is 18.7 minutes. The average car ownership in Union County, SD is 2 cars per household.