Olathe is located in Kansas. Olathe, Kansas has a population of 140,339. Olathe is more family-centric than the surrounding county with 40.92% of the households containing married families with children. The county average for households married with children is 37.57%.
The median household income in Olathe, Kansas is $100,849. The median household income for the surrounding county is $96,059 compared to the national median of $69,021. The median age of people living in Olathe is 35.9 years.
The average high temperature in July is 88.1 degrees, with an average low temperature in January of 20.3 degrees. The average rainfall is approximately 40.9 inches per year, with 13.2 inches of snow per year.