what county is olathe ks in
Olathe (/oÊËleÉªÎ¸É/ oh-LAY-thÉ) is a city in, and is the county seat of, Johnson County, Kansas, United States. Located in northeastern Kansas, it is also the fourth most populous city in the state, with a population of 125,872 recorded by the 2010 census. Olathe is also the fourth-largest city in the Kansas City metropolitan area.