In 2018, Sioux County, IA had a population of 34.8k people with a median age of 33.2 and a median household income of $67,178. Between 2017 and 2018 the population of Sioux County, IA grew from 34,692 to 34,825, a 0.383% increase and its median household income grew from $66,022 to $67,178, a 1.75% increase.
The 5 largest ethnic groups in Sioux County, IA are White (Non-Hispanic) (87.1%), White (Hispanic) (6.13%), Other (Hispanic) (3.61%), Two+ (Non-Hispanic) (1.18%), and Asian (Non-Hispanic) (0.712%). 0% of the households in Sioux County, IA speak a non-English language at home as their primary language, and 95.8% of the residents in Sioux County, IA are U.S. citizens.
In 2018, the median property value in Sioux County, IA was $159,400, and the homeownership rate was 79.8%. Most people in Sioux County, IA drove alone to work, and the average commute time was 11.8 minutes. The average car ownership in Sioux County, IA was 2 cars per household.