Olathe is located in Montrose county Colorado with a geographic area of 1.5 square miles. The total population in Olathe is 1,800 with 56.1% male and 43.9% female. Children under age 5 represent 4.3% of the population, under age 18 equal 20.4% of the population and over age 65 is 13.3% of the population. The median household income is $50,750, per capita income is $22,740. There are a total of 630 housing units with 57.9% owner occupied. Education includes 41.1% of residents that are high school graduates and 10.2% with a bachelor's degree or higher. The average temperature in Olathe in the summer is 68 degrees, and in the winter 29 degrees.