In 2017, Buchanan County, IA had a population of 21.1k people with a median age of 38.7 and a median household income of $59,348. Between 2016 and 2017 the population of Buchanan County, IA grew from 21,031 to 21,101, a 0.333% increase and its median household income grew from $55,881 to $59,348, a 6.2% increase.
The 5 largest ethnic groups in Buchanan County, IA are White (Non-Hispanic) (96.4%), White (Hispanic) (1.34%), Two or More Races (Non-Hispanic) (0.957%), Asian (Non-Hispanic) (0.554%), and Black or African American (Non-Hispanic) (0.332%). N/A% of the people in Buchanan County, IA speak a non-English language, and 99.4% are U.S. citizens.
The median property value in Buchanan County, IA is $132,500, and the homeownership rate is 79.5%. Most people in Buchanan County, IA commute by Drove Alone, and the average commute time is 21.1 minutes. The average car ownership in Buchanan County, IA is 2 cars per household.