Auto insurance statistics show a large U.S. market where liability and physical-damage coverage have different claim patterns, costs, and underwriting results. The figures below identify their measurement periods, populations, units, and important limitations.
Key Auto Insurance Statistics
These highlights summarize the most useful national measurements:
- $193.446 billion in 2024 liability net premiums written for U.S. private passenger auto liability coverage.
- $152.444 billion in 2024 collision and comprehensive net premiums written for U.S. private passenger auto physical-damage coverage.
- 11.7% growth in liability net premiums written from 2023 to 2024 in the United States private passenger auto market.
- 14.3% growth in collision and comprehensive net premiums written from 2023 to 2024 in U.S. private passenger auto physical-damage coverage.
- A 101.2 liability combined ratio in 2024 for U.S. private passenger auto liability.
- A 87.9 collision and comprehensive combined ratio in 2024 for U.S. private passenger auto physical-damage coverage.
- $1,281.60 average auto-insurance expenditure in 2023 for U.S. personal auto insurance.
- 19.21% growth in average expenditures from 2019 to 2023 for U.S. personal auto insurance.
- 0.80 bodily-injury liability claims per 100 earned car years in 2024 for U.S. private passenger auto.
- $28,278 bodily-injury liability severity per claim in 2024 for U.S. private passenger auto.
- 2.50 property-damage liability claims per 100 earned car years in 2024 for U.S. private passenger auto.
- $6,770 property-damage liability severity per claim in 2024 for U.S. private passenger auto.
- 4.16 collision claims per 100 earned car years in 2024 for U.S. private passenger auto.
- 3.95 comprehensive claims per 100 earned car years in 2024 for U.S. private passenger auto.
- 7.2 collision claims per 100 insured vehicle years for 2022–2024 model-year passenger cars, including minivans.
- $10,354 collision severity per claim for 2022–2024 model-year pickups in the HLDI collision-coverage table.
- 11.3% growth in motor vehicle insurance prices from December 2023 to December 2024 in the U.S. CPI-U for urban consumers.
- 40,990 estimated U.S. motor-vehicle traffic deaths in 2023, an exposure context measure rather than an insurance-claim count.
Contents
- Key Auto Insurance Statistics
- Auto Insurance Premiums, Expenditures, and Market Results
- Auto Insurance Claim Frequency and Severity Trends
- Liability Auto Insurance Statistics for Bodily Injury and Property Damage
- Collision and Comprehensive Auto Insurance Claim Statistics
- Vehicle-Type Collision Loss Statistics
- Auto Insurance Prices, Driving Exposure, and Loss Context
Auto Insurance Premiums, Expenditures, and Market Results
The U.S. private passenger auto market separates liability from physical damage in the premium and underwriting data. Triple-I reports net premiums after reinsurance, while NAIC expenditure figures are averages based on written premiums and exposure data rather than quotes for every driver.
| Measure | 2024 result | Scope |
|---|---|---|
| Liability net premiums written | $193.446 billion | U.S. private passenger auto liability |
| Collision/comprehensive net premiums written | $152.444 billion | U.S. private passenger auto physical damage |
| Liability premium change | 11.7% | 2024 year over year |
| Collision/comprehensive premium change | 14.3% | 2024 year over year |
Source: Facts + Statistics: Auto insurance. The premium figures are after reinsurance and exclude state funds.
The liability combined ratio was 101.2 in 2024, which is above 100 and indicates an underwriting loss under this measure after dividends to policyholders. The collision/comprehensive combined ratio was 87.9, measured after dividends to policyholders.
NAIC’s average-expenditure measure reached $1,281.60 in 2023 for U.S. personal auto insurance. Average expenditures increased 19.21% from 2019 to 2023, while combined average premiums increased 14.41% in 2023.
Source: NAIC Releases ‘2023 Auto Insurance Database Average Premium Supplement’. The NAIC measure combines voluntary and residual-market business and embeds coverage and market mix; it is not a quoted premium for every driver.
Auto Insurance Claim Frequency and Severity Trends
Claim frequency here means claims per 100 earned car years, and severity means average payment per claim in the ISO series reproduced by Triple-I. The series covers U.S. private passenger auto and should not be treated as a direct forecast for an individual policyholder.
| Coverage | 2021 frequency | 2024 frequency | 2021 severity | 2024 severity |
|---|---|---|---|---|
| Bodily injury liability | 0.68 | 0.80 | $23,592 | $28,278 |
| Property damage liability | 2.28 | 2.50 | $5,036 | $6,770 |
| Collision | 4.31 | 4.16 | $4,583 | $5,489 |
| Comprehensive | 3.35 | 3.95 | — | — |
Source: Facts + Statistics: Auto insurance. The table’s frequency and severity series are observed measures for the stated years; the comprehensive severity value is not included in the supplied figures.
Bodily-injury liability frequency moved from 0.68 in 2021 to 0.70 in 2022, 0.78 in 2023, and 0.80 in 2024. Over the same years, bodily-injury severity was $23,592, $24,681, $26,178, and $28,278 per claim, respectively.
Property-damage liability frequency was 2.28 in 2021, 2.54 in 2022, 2.59 in 2023, and 2.50 in 2024. Severity was $5,036 in 2021, $6,024 in 2022, $6,554 in 2023, and $6,770 per claim in 2024.
Liability Auto Insurance Statistics for Bodily Injury and Property Damage
Liability coverage produces two distinct loss profiles in the supplied ISO series. Bodily-injury claims were less frequent than property-damage claims in each listed year, while the average bodily-injury payment was much larger.
| Year | Bodily-injury frequency | Bodily-injury severity | Property-damage frequency | Property-damage severity |
|---|---|---|---|---|
| 2021 | 0.68 | $23,592 | 2.28 | $5,036 |
| 2022 | 0.70 | $24,681 | 2.54 | $6,024 |
| 2023 | 0.78 | $26,178 | 2.59 | $6,554 |
| 2024 | 0.80 | $28,278 | 2.50 | $6,770 |
Source: Facts + Statistics: Auto insurance. Frequencies are claims per 100 earned car years; severities are U.S. dollars per claim.
These measures describe private passenger auto liability claims nationally, not legal minimums, individual limits, or the probability that a particular driver will file a claim. The 2024 liability combined ratio of 101.2 provides a separate underwriting-result measure and should not be substituted for either claim frequency or severity.
Collision and Comprehensive Auto Insurance Claim Statistics
Collision and comprehensive coverage protect against different physical-damage exposures, so their frequency patterns are useful to compare but should not be merged into one claim rate. Collision frequency was 4.31 claims per 100 earned car years in 2021, 4.48 in 2022, 4.48 in 2023, and 4.16 in 2024.
| Coverage and year | Frequency | Severity where supplied |
|---|---|---|
| Collision, 2021 | 4.31 | $4,583 |
| Collision, 2022 | 4.48 | $5,377 |
| Collision, 2023 | 4.48 | $5,521 |
| Collision, 2024 | 4.16 | $5,489 |
| Comprehensive, 2021 | 3.35 | Not supplied |
| Comprehensive, 2022 | 3.78 | Not supplied |
| Comprehensive, 2023 | 4.08 | Not supplied |
| Comprehensive, 2024 | 3.95 | Not supplied |
Source: Facts + Statistics: Auto insurance. Frequency is claims per 100 earned car years, and collision severity is average U.S. dollars per claim.
Comprehensive frequency rose from 3.35 in 2021 to 3.78 in 2022 and 4.08 in 2023, before reaching 3.95 in 2024. Collision severity increased from $4,583 in 2021 to $5,377 in 2022 and $5,521 in 2023, then was $5,489 in 2024.
Vehicle-Type Collision Loss Statistics
HLDI’s collision-coverage table covers 2022–2024 model years and uses insured vehicle years, a different denominator from the earned car years in the ISO series. Its overall-loss measure is average loss payment per insured vehicle year, not claim severity.
| Vehicle type | Collision frequency per 100 insured vehicle years | Collision severity per claim | Overall collision loss per insured vehicle year |
|---|---|---|---|
| Passenger cars, including minivans | 7.2 | $10,298 | $737 |
| Pickups | 5.1 | $10,354 | Not supplied |
| SUVs | 5.5 | $10,220 | Not supplied |
| All passenger vehicles | 5.9 | Not supplied | $604 |
Source: Passenger Vehicle Collision Coverage Insurance Losses, 2022–2024 Model Years. “All passenger vehicles” includes cargo/passenger vans in this HLDI table, while passenger cars include minivans.
Passenger cars had the highest supplied collision frequency at 7.2 per 100 insured vehicle years, compared with 5.1 for pickups and 5.5 for SUVs. Among the listed vehicle types, pickup collision severity was $10,354 per claim, passenger-car severity was $10,298, and SUV severity was $10,220.
Auto Insurance Prices, Driving Exposure, and Loss Context
The CPI measures sampled-policy prices, not average premiums or insurer underwriting results. In the U.S. CPI-U for urban consumers, motor vehicle insurance rose 11.3% from December 2023 to December 2024 and 0.3% from November to December 2024.
The motor-vehicle-insurance component had a 3.015% relative-importance weight in the December 2024 CPI-U basket. BLS notes that the pricing item excludes business-use vehicles and farm/ranch policies; the relative importance is a basket weight, not every household’s spending share.
Source: Consumer Price Index News Release – 2024 M12 Results and Measuring Price Change in the CPI: Motor vehicle insurance.
NHTSA estimated 40,990 U.S. motor-vehicle traffic deaths in 2023 and an estimated fatality rate of 1.26 deaths per 100 million vehicle miles traveled. Vehicle miles traveled increased by about 67.5 billion miles, or 2.1%, from 2022 to 2023.
Source: NHTSA Releases 2022 Traffic Deaths, 2023 Early Estimates. These fatality and VMT figures provide driving-risk and exposure context only, not auto-insurance claim statistics.
A later BLS measure reported motor vehicle insurance at 2.754% of the CPI weight in December 2025. This later-period relative-importance figure is not directly interchangeable with the December 2024 CPI-U weight or with an average premium.
Source: Measuring Price Change in the CPI: Motor vehicle insurance.