In 2020, Johnson County, KS had a population of 598k people with a median age of 37.8 and a median household income of $91,650. Between 2019 and 2020 the population of Johnson County, KS grew from 591,506 to 597,574, a 1.03% increase and its median household income grew from $89,087 to $91,650, a 2.88% increase.
The 5 largest ethnic groups in Johnson County, KS are White (Non-Hispanic) (79.3%), White (Hispanic) (5.34%), Asian (Non-Hispanic) (5.2%), Black or African American (Non-Hispanic) (4.58%), and Two+ (Non-Hispanic) (2.7%).
None of the households in Johnson County, KS reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
95.6% of the residents in Johnson County, KS are U.S. citizens.
The largest universities in Johnson County, KS are Johnson County Community College (3,016 degrees awarded in 2020), Grantham University (1,908 degrees), and MidAmerica Nazarene University (633 degrees).
In 2020, the median property value in Johnson County, KS was $277,500, and the homeownership rate was 69%. Most people in Johnson County, KS drove alone to work, and the average commute time was 21.1 minutes. The average car ownership in Johnson County, KS was 2 cars per household.