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Last updated: July 24, 2024

What Affects Car Insurance Rates?

Car insurance rates aren’t a one-size-fits-all model.

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You apply for car insurance at the same time as a friend. But while she gets affordable annual premiums, your policy has much higher costs. Why the discrepancy?

Many factors go into the cost of auto insurance, from your credit score (in most states) to your home address. We’ll go over all of the factors, plus some ways to save on auto insurance premiums.

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What Affects Car Insurance Rates?

Various elements factor into your car insurance costs.

  1. Coverages: Each state has different mandatory minimum auto insurance coverage limits. For example, in New York, the minimum coverage is $10,000 for property damage liability per accident, $25,000 for bodily injury liability for one person, and $50,000 for bodily injury liability for everyone involved in the accident. The more coverages you get, the more expensive your policy will be. You can check out our auto insurance guide to learn the minimum coverage in your state, but you may want full coverage, which would add on coverages such as comprehensive and collision insurance, medical payments coverage, or uninsured/underinsured motorist coverage.
  2. Deductible: The higher your deductible, the lower your premiums, and vice versa. Decide if you want to have high premiums and pay less later for covered claims, or have low premiums and risk paying a high deductible toward covered claims.
  3. Vehicle: Car insurance companies take into account the type of car you drive, including your vehicle’s make, model, year, price, type of car, and vehicle safety ratings, when determining your rates.
  4. Mileage and commuting: People who drive more, whether for commuting or pleasure, pay more for insurance than people who only drive their cars occasionally, as they have a higher risk of accidents.
  5. State and ZIP code: Not only do states have differing auto insurance requirements, but rates tend to be higher in large cities versus suburban or rural areas due to factors like increased crime, vandalism, theft, and denser populations.

DID YOU KNOW?

In 2020, the state with the highest motor vehicle theft rate was Colorado, which had 524 thefts per 100,000 inhabitants.1 Read more about auto insurance in Colorado.

  1. Driving history: If you have a history of tickets, accidents, DUIs, or license suspensions or revocations, you’ll have trouble finding affordable car insurance coverage, especially if the incidents were your fault.
  2. Credit history: In all states except California, Hawaii, Massachusetts, and Michigan, insurance providers can take applicants’ credit scores into account when determining rates. If you have bad credit, you’ll pay higher rates than someone with good credit, as the provider will determine your credit-based insurance score.
  3. Age: Statistically, teens get into more accidents than the general population, and since they’re first-time drivers, auto insurance costs for teens are higher. Those costs drop when the insured person turns 25.
  4. Sex: Females get lower rates for auto insurance than males, as males are more likely to be involved in accidents. Despite being only 49 percent of the U.S. population, men made up over 70 percent of all traffic fatalities in 2019, according to data from the U.S. Census Bureau2 and the National Highway Traffic Safety Administration.3
  5. Marital status: Married people get lower rates than single, widowed, divorced, or separated people.
  6. Homeownership: Homeowners get better auto insurance rates than renters.

Car Insurance Rates Over Time

Here is what U.S. households paid for car insurance from 2007 to 2020:

Year Average annual cost of car insurance per U.S. household Year-over-year increase (rounded to nearest whole number)
2007 $1,071.37 N/A
2008 $1,113.37 4%
2009 $1,075.24 -4%
2010 $1,010.42 -6%
2011 $983.31 -3%
2012 $1,017.94 3%
2013 $1,012.84 -1%
2014 $1,112.28 9%
2015 $1,078.56 -3%
2016 $1,149.12 6%
2017 $966.53 -19%
2018 $976.21 1%
2019 $1,545.28 37%
2020 $1,574.78 2%
Average $1,120.52 2%4

The biggest year-over-year change occurred from 2018 to 2019 with a 37 percent increase. On average, each U.S. household paid $1,120.50 for car insurance each year from 2007 to 2020. Learn more about the average costs of auto insurance.

How to Lower Car Insurance Rates

While you probably won’t get married, move states, or buy a home solely to lower your auto insurance rates, here are some reasonable ways that you can get better car insurance premiums:

  1. Use discounts. Check out your auto insurance provider’s discounts. You might be able to save money on simple actions like paying for a year of coverage at once or enrolling in paperless billing. You can also get discounts if you have a car with safety features like GPS tracking, or other products and services.
  2. Drop coverage. You can drop supplemental coverage that your state’s laws don’t require, such as rental car coverage.
  3. Increase your deductible. While you’ll have to pay more for car insurance claims, your premiums will be lower with a higher deductible.
  4. Bundle your insurance. You can save money on auto insurance by bundling it with other types of insurance, like homeowners insurance.

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Recap

Those are all of the factors that affect car insurance rates. For more information, read our auto insurance FAQs or learn about the process of filing a claim.

Aliza Vigderman
Written by:Aliza Vigderman
Senior Writer & Editor
A seasoned journalist and content strategist with over 10 years of editorial experience in digital media, Aliza Vigderman has written and edited hundreds of articles on the site, covering everything from plan coverages to discounts to state laws. Previously, she was a senior editor and industry analyst at the home and digital security website Security.org, previously called Security Baron. She has also contributed to The Huffington Post, SquareFoot, and Degreed. Aliza studied journalism at Brandeis University.

Citations

  1. 2019 Crime in the United States: Motor Vehicle Theft. FBI Department of Justice. (2019).
    https://ucr.fbi.gov/crime-in-the-u.s/2019/crime-in-the-u.s.-2019/topic-pages/motor-vehicle-theft

  2. 2019 Population Estimates by Age, Sex, Race and Hispanic Origin. United States Census. (2020, Jun 25).
    https://www.census.gov/newsroom/press-kits/2020/population-estimates-detailed.html

  3. Persons Killed, by Person Type – State: USA, Year: 2019. United States Department of Transportation.
    (2019).
    https://www-fars.nhtsa.dot.gov/People/PeopleAllVictims.aspx

  4. Table R-1, Consumer Expenditure Surveys. Bureau of Labor Statistics. (2020).
    https://www.bls.gov/cex/tables/calendar-year/mean/cu-all-detail-2020.xlsx