Today there are 1,842 homes for sale in Johnson County, KS--July 18, 2018. The median average list price is $439,900. Below are links to price ranges for homes for sale in Johnson County, Kansas, by price range. The JoCoKS homes shown are all in “Active” status; this way, you won’t have to waste time looking at homes that are already under contract (“Show for Backups” status or “Pending” status). These are single-family homes, not condominiums or townhomes. You can search for condos and townhouses here.