This graphic takes the top insurance providers in Olathe, KS and compares the average monthly cost of their respective premiums against the average cost of $256. The state’s top providers, and the percent difference that is between their average monthly cost and the average cost in the city as a whole are: Allstate (20%), Farmers (18%), GEICO (-6%), Nationwide (-23%), Progressive (26%), State Farm (-12%), and USAA (-40%).