Top 5 Car Insurance Companies in Ontario, CA, by Market Share

Compare Quotes from Top Providers and Save now!

The average rate of insurance in Ontario, CA, is $1,848. This is much higher than the cost of auto insurance in neighboring places such as Stevens, Minnewaukan, Crary, Ramsey County, and Bartlett. The cost of auto insurance can depend on numerous factors ranging from the make and model of the car to the age and gender of the driver. It also depends on factors such as the neighborhood one lives in, in Ontario. This is because the rate of auto thefts differs from one neighborhood to another. 

Using market share data for California, Zimlon has found the following companies to be the top insurers in Ontario, CA.



State Farm occupies the first spot with a massive 4,106,038 direct premiums written and 4,090,146 direct premiums earned. The company holds a market share of 13.74% in California. State Farm has a rating of 808/1000 in the J.D. Power Auto Insurance Study. One only needs to go as far as State Farm’s online faculty for details of different insurance coverages they provide. The company is credited with a solid rating of A++ by A.M. Best. 


Farmers occupies a market share of 10.68% in California. The company has 3,191,341 direct premiums written, and 3,189,468 direct premiums earned. The ease of navigating the Farmers website is an added advantage. Farmers ranks a tad low on the J.D. Power Auto Insurance Study with a score of 805/1000. A.M. Best has given Farmers an A rating for its financial strength in the markets. 


With 2,897,713 direct premiums written and 2,794,052 direct premiums earned, GEICO is a close third. The company has a market share of 9.69 % in California and enjoys an A.M. Best Rating of A++. GEICO also has a score of 825/1000 by the J.D. Power Auto Insurance Study and also received the “Better Than The Most” tag. 


Allstate has 2,687,887 direct premiums written and 2,640,022 direct premiums earned in California. Allstate occupies the fourth spot with a market share of 8.99%. The company was one of the leading insurance companies in the auto insurance market back in 2010. Allstate has a J.D. Power Auto Insurance score of 808/1000 and an A.M. Best Rating of A+.


AAA enjoys the “Better Than The Most” tag, alongside a J.D. Power Rating of 834/1000. The company occupies a market share of 8.69%. AAA offers an Umbrella Liability Insurance and enjoys an A.M. Best Rating of A. It has 2,598,340 direct premiums written, and 2,470,179 direct premiums earned.