Liability auto insurance protects you from that worst case scenario by providing a cushion between your assets and the amount you’re on the hook for. For this reason, choosing the right auto liability limits is the most important part of your car insurance quote comparison. NerdWallet typically recommends having at least as much liability coverage as your net worth.

If you’ve ever compared car insurance rates, you know how many options are available. Depending on a variety of individual rating factors, certain companies will price your insurance differently. You could end up paying more by choosing the wrong company or failing to compare enough companies. We've outlined the factors that go into your car insurance premiums, as well as some tips for how to find the best possible rates. Let’s get started.


The auto insurance rates displayed in our articles are based on the 2019 results of The Zebra’s comprehensive car insurance pricing analysis. In our analysis of all US zip codes — including Washington D.C. — the sample user profile consisted of a 30-year-old single male driving a 2013 Honda Accord. To generate pricing specific to particular rating factors, we adjusted the driving profile based on pricing factors commonly used by car insurance companies.
For our top picks, we preferred online claim reporting capabilities (including mobile app options) for customer convenience, but we also wanted companies to offer easy access to real human support. Whether you want to have another person on the line throughout the whole process or prefer to keep things digital, a good insurance company offers you plenty of options for claims.
Idaho is pretty sparsely populated and mainly rural which leads to lower car insurance rates. According to World Atlas, Idaho has the seventh least population density in the country. There are roughly 20 people for every square mile. Wide-open spaces with few people mean fewer cars out on the road and fewer accidents, everything an insurance company loves.
Heightened losses in recent years have led to a 7.2% rate hike across the 10 largest auto insurers in 2017. This rate increase followed a year in which eight of the 10 largest auto insurers reported a negative underwriting profit. In the table below, a combined loss ratio of more than 100% indicates the company incurred more in losses and expenses than it earned in premiums.
Cash in on major life changes. Certain life events could translate to cheaper car insurance, so shop for quotes whenever something major changes in your life. For instance, many companies offer a lower rate for married couples or domestic partners. Or perhaps you moved to a suburb with lower accident and crime rates. If your risk for accidents goes down, your rates just might, too.
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