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There are many car insurance companies to choose from, but there are ten top companies that insure most Americans. We compared how they rank against each other based on market share, customer satisfaction, claims satisfaction, and average cost.
Top 10 most popular car insurance companies
The following are the most popular car insurance companies in America, based on the percentage of insured American drivers who use them:
| Company | Market share (%) | Direct premiums written |
| State Farm | 16.10 | $40,878,781.00 |
| GEICO | 13.74 | $34,892,004.00 |
| Progressive | 12.22 | $31,025,772.00 |
| Allstate | 9.30 | $23,626,743.00 |
| USAA* | 6.00 | $15,231,169.00 |
| Liberty Mutual | 4.61 | $11,701,811.00 |
| Farmers Insurance | 4.15 | $10,533,343.00 |
| Nationwide | 2.46 | $6,245,588.00 |
| American Family Insurance | 2.27 | $5,776,711.00 |
| Travelers | 1.93 | $4,903,033.00 |
*USAA is only for active military, veterans, and their families.
Data from S&P Global Market Intelligence
How the top 10 rank based on customer satisfaction
Customer satisfaction with car insurance providers may factor into your decision. According to J.D. Power, a consumer research company that surveys customers, this is how the top 10 ranked in customer satisfaction:
| Company | Customer Satisfaction Ranking |
| GEICO | 1 |
| State Farm | 2 |
| Progressive | 3 |
| USAA* | 4 |
| Allstate | 5 |
| Travelers | 6 |
| Nationwide | 7 |
| Liberty Mutual | 8 |
| American Family Insurance | 9 |
| Farmers Insurance | 10 |
*USAA is only for active military, veterans, and their families.
How the top 10 rank based on auto claims satisfaction
J.D. Power surveyed customers to rank satisfaction with how auto insurance companies responded to claims. Here's how the top 10 ranked out the top 25 car insurance providers:
| Company | Auto Claims Satisfaction |
| State Farm | 6 |
| GEICO | 13 |
| Progressive | 22 |
| Allstate | 8 |
| USAA* | n/a |
| Liberty Mutual | 15 |
| Farmers Insurance | 10 |
| Nationwide | 9 |
| American Family Insurance | 18 |
| Travelers | 20 |
*USAA is only for active military, veterans, and their families.
Average car insurance cost by company
This is how the top 10 rank on average monthly cost.
| Company | Average Monthly Insurance Premium |
| State Farm | $130.00 |
| GEICO | $156.00 |
| Progressive | $162.00 |
| Allstate | $176.00 |
| USAA* | $177.00 |
| Liberty Mutual | $180.00 |
| Farmers Insurance | $178.00 |
| Nationwide | $164.00 |
| American Family Insurance | $181.00 |
| Travelers | $176.00 |
Data from Savvy
*USAA is only for active military, veterans, and their families.
Finding the best car insurance company for you
There are many other factors that play into your premium, like credit score, age, gender, driving history, driving experience, and the state you live. Every company considers them differently so it's critical to shop around. Also, if you already have homeowners or renters insurance with a company, you can probably save by bundling your auto insurance.
If you want to get the best rate for you, you'll need to start by getting quotes from several different insurance companies. Once you have a few different quotes, you'll want to compare them and look for the policy that gives you the most coverage for your money by giving the most coverage types and the highest limits. Also look at the deductible, or the amount you'll pay out-of-pocket if you get into an accident.
The driver who gets the best deal is one who shops around for their coverage. Compare quotes and look beyond the premium to find the best-priced coverage for you. See Business Insider's picks for the best car insurance companies.
Ronda Lee is an associate editor for insurance at Personal Finance Insider covering life, auto, homeowners, and renters insurance for consumers. She is also a licensed attorney who practiced litigation and insurance defense.