The 10 largest car insurance companies in the U.S.

The auto insurance industry is continuing to consolidate: According to the National Association of Insurance Commissioners, the five largest insurers accounted for nearly two-thirds (65.14%) of the market in 2025.

The top two insurers, State Farm and Progressive, account for more than 37% by themselves.

But, the 2025 list, which came out in March 2026, didn't change from the 2024 list. Here are the 10 largest auto insurance companies.

The largest private passenger insurer in the U.S., State Farm had nearly $69 billion in direct written premiums in 2025. This brand covers 18.64% of the entire auto market.

Progressive reported more than $67 billion in direct written premiums last year, with a market share of 18.60%.

A wholly owned subsidiary of Berkshire Hathaway, Geico had a market share of about 11.5% in 2025, writing more than $42 billion in premiums.

Allstate’s market share sat at 10.15% in 2025, while direct written premiums increased to $37 billion in 2025.

While only available to active duty service members, veterans and their families, USAA still nabbed the fifth spot and 6.19% of the auto insurance market. It reported $22.7 billion in written premiums in 2025.

Farmers Insurance stayed in sixth place and reported close to $13.3 billion in written premiums in 2025. Its market share hovered around 3.5%.

Liberty Mutual hung on to seventh place, with its market share at 2.8% in 2025. The Boston-based company reported just over $11 billion in direct written premiums last year.

Travelers stayed in eighth place in 2025, writing about 1.9% of auto insurance premiums in 2025.

AAA provides a variety of services to members across the U.S., including auto insurance through third-party underwriters like the Automobile Club of Southern California and the Automobile Club Group. It wrote about 1.9% of auto insurance premiums in 2025.

American Family Insurance took tenth place in 2025, reporting $5.8 billion in written premiums and a 1.53% market share. 

Car insurance premiums are becoming a big expense for many Americans — the average cost has reached $1,084 for six months of coverage in 2026 according to insurance comparison site The Zebra. That's an increase of 18% from 2025.

However, it's possible to save. Here are our tips to cut your costs:

Shop around: There can be huge differences among insurance companies for the same basic policy. Get rate quotes from at least three providers every time you're up for renewal to ensure you're getting the best deal.

Pay your whole premium upfront: Most companies charge a fee for dividing your premium into monthly payments. You can often receive a discount for setting up autopay, as well.

Bundle home and auto insurance: Getting multiple lines of insurance from the same carrier doesn't just simplify your life, it can result in discounts of up to 25%.

Take advantage of other discounts: Rate reductions are often available to safe drivers, good students, homeowners, members of the military and others. The nation's largest car insurance company, State Farm has a discount of up to 30% if you use its Drive Safe & Save mobile app to track your driving.

Consider pay-per-mile insurance: If you don't drive often, a pay-per-mile policy can save you more than 40% over traditional insurance. You're charged a daily flat rate plus a few cents per mile.

Improve your credit score: In most states, insurance companies can use your credit history when calculating your rates. Paying off debts, lowering your credit utilization ratio and reporting errors or fraud are all ways to boost your FICO score.

Select a higher deductible: Raising your deductible from $200 to $500 can reduce the cost of collision and comprehensive coverage by as much as 30%, according to the Insurance Information Institute, while upping it to $1,000 can save you 40% or more. Just make sure you have adequate savings to cover the difference.

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