These car insurance industry statistics show a U.S. market that remains large, price-sensitive, and highly concentrated at the top. The latest figures from NAIC, the Insurance Information Institute, the Insurance Research Council, and the U.S. Bureau of Labor Statistics show strong premium growth, improved underwriting results versus 2022, and a still-elevated uninsured driver problem.
car insurance industry statistics
Car insurance industry statistics (Top Highlights)
The countrywide average auto insurance expenditure reached $1,126.79 in 2022, up 6.1% from 2021.
Florida had the highest average auto insurance expenditure in 2022 at $1,624.77, followed by Louisiana at $1,557.85 and New York at $1,548.58.
U.S. households spent an average of 1.50% of median household income on auto insurance in 2021.
Private passenger auto liability net premiums written climbed to $193.4 billion in 2024.
Private passenger auto collision and comprehensive net premiums written reached $152.4 billion in 2024.
The private passenger auto liability combined ratio improved to 101.2 in 2024 from 111.3 in 2022.
The collision and comprehensive combined ratio improved to 87.9 in 2024 from 113.4 in 2022.
According to Triple-I, the overall U.S. personal auto insurance industry posted a 95.3 net combined ratio in 2024, its best underwriting result since the pandemic period began.
Total private passenger auto direct premiums written reached $371.0 billion in 2025.
State Farm held 18.64% of the U.S. private passenger auto market in 2025, narrowly ahead of Progressive at 18.60%.
The top five private passenger auto groups controlled 65.14% of the market in 2025.
The uninsured motorist rate reached 15.4% in 2023, up from 11.6% in 2019.
Triple-I reported that 33.4% of drivers were either uninsured or underinsured in 2023.
In 2024, 4.16% of collision policyholders had a claim, compared with 3.95% for comprehensive coverage.
In 2024, the average auto liability claim was $6,770 for property damage and $28,278 for bodily injury.
BLS said motor vehicle insurance prices rose 2.8% in 2025, the smallest December-to-December increase in the last five years.
U.S. average auto insurance expenditure
The average amount consumers spent per insured vehicle continued rising after the pandemic dip. By 2022, the countrywide average auto insurance expenditure was back above $1,100.
Label
Bar
Value
2020
$1,047.76
2021
$1,062.31
2022
$1,126.79
Max = $1,126.79. Widths: 2020 92.99%, 2021 94.28%, 2022 100.00%
Private passenger auto liability net premiums written
The liability side of private passenger auto insurance expanded sharply between 2020 and 2024. Net premiums written rose from about $144.1 billion to $193.4 billion over the period.
For insurers, lower combined ratios are better because they indicate stronger underwriting performance. The liability line worsened sharply in 2022 and then improved over the next two years.
Top private passenger auto insurers by market share
The U.S. private passenger auto market is led by a small group of very large carriers. In 2025, State Farm and Progressive were essentially tied at the top, and the five largest groups together held 65.14% of the market.
Label
Bar
Value
State Farm
18.64%
Progressive
18.60%
Berkshire Hathaway
11.56%
Allstate
10.15%
USAA
6.19%
Max = 18.64%. Widths: State Farm 100.00%, Progressive 99.79%, Berkshire Hathaway 62.02%, Allstate 54.45%, USAA 33.21%
2024 auto claim frequency by coverage type
Claim frequency varied widely by coverage in 2024. Collision and comprehensive claims were much more common than bodily injury liability claims.
The biggest takeaway is that the auto insurance business has been recovering from the severe loss pressure that peaked in 2022. Premium growth remained strong through 2024, and underwriting metrics improved materially, even though affordability remains a concern for consumers.
At the same time, the industry still faces structural pressure from repair costs, medical claim severity, litigation exposure, and a rising share of uninsured and underinsured drivers. That combination helps explain why the market is showing both better insurer results and continued strain for many policyholders.
Another important signal is concentration. The private passenger auto market is still dominated by a handful of carriers, with State Farm and Progressive now nearly even at the top. That scale matters because pricing, claims technology, telematics, and distribution efficiency increasingly shape market share outcomes.
Sources
Insurance Information Institute, Facts + Statistics: Auto insurance, accessed 2026.
Insurance Information Institute, Facts + Statistics: Uninsured motorists, accessed 2026.
NAIC, Property and Casualty Insurance Industry: 2025 Top 25 Groups and Companies by Countrywide Premium, 2026.
NAIC, Releases 2024 Market Share Data, March 2025.
Insurance Information Institute, U.S. Personal Auto Insurance Industry Generates Profitable Underwriting Result but Faces Headwinds, June 2025.
Insurance Information Institute, IRC report reveals that one in three drivers were either uninsured or underinsured in 2023, February 2025.
U.S. Bureau of Labor Statistics, Consumer Price Index: 2025 in review, January 2026.
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