This graphic takes the top insurance providers in Salt Lake City, UT and compares the average monthly cost of their respective premiums against the average cost of $345. 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 (8%), Farmers (6%), GEICO (-23%), Nationwide (-17%), Progressive (19%), State Farm (26%), and USAA (-36%).