In 2017, Johnson County, IA had a population of 144k people with a median age of 29.9 and a median household income of $59,965. Between 2016 and 2017 the population of Johnson County, IA grew from 142,006 to 144,425, a 1.7% increase and its median household income grew from $56,808 to $59,965, a 5.56% increase.
The population of Johnson County, IA is 79.6% White Alone, 6.28% Black or African American Alone, and 6.22% Asian Alone. 13.9% of the people in Johnson County, IA speak a non-English language, and 92.8% are U.S. citizens.
The largest universities in Johnson County, IA are University of Iowa (8,274 degrees awarded in 2016), The Salon Professional Academy-Iowa City (30 degrees), and La James International College-Iowa City (26 degrees).
The median property value in Johnson County, IA is $210,400, and the homeownership rate is 59.3%. Most people in Johnson County, IA commute by Drove Alone, and the average commute time is 18.1 minutes. The average car ownership in Johnson County, IA is 2 cars per household.