Car insurance rates rose slightly in March. The national average rate for full-coverage car insurance climbed from $192 per month to $196 per month, according to . The national average liability rate also increased slightly from $102 per month to $105 per month by the end of March.
Full-coverage rates in Washington, D.C., continued their upward trend to $338 per month, up from $321 the previous month. Liability coverage rates in the city also rose slightly, climbing from $228 in February to $230 in March.
Average cost of car insurance by state as of April 2025
Insurance rates can vary greatly based on location, which influences factors like exposure to extreme weather, traffic congestion, and vehicle crime rates.
For most states, rates stayed steady with fluctuations of only a few dollars or less. But some areas saw bigger jumps, like Washington, D.C., New York, Connecticut, and Nevada.
Delaware and Arkansas saw big rate decreases.
5 states with the highest car insurance rates as of April 2025
New York was the most expensive area for car insurance in March, climbing from third the month before. Washington, D.C., and Maryland continue to rank among the most expensive places, while Connecticut and Nevada are newcomers to the list.
5 states with the lowest car insurance rates as of April 2025
North Carolina climbs to the top position as the cheapest state for car insurance, with both liability and full-coverage rates well below the national averages of $105 and $196, respectively.
Here are the states with the lowest rates in March.
Factors that affect car insurance rates
Car insurance rates can vary significantly among drivers based on many factors that insurers use to estimate risk. Some common rating factors include:
Driving history: Insurers consider whether a driver has a clean record or infractions such as speeding, driving under the influence, or causing an accident.
Age: Driving experience and accident risks closely correlate with age, actuarial data shows.
Gender: Statistically, women are less likely to cause accidents and engage in risky behaviors, like aggressive driving.
Location: Where a policyholder lives and drives affects their exposure to risk factors such as extreme weather, vehicle crime rates, and accident rates.
Credit history: Actuarial data indicates drivers with better credit are less likely to file car insurance claims than those with poor credit.
Vehicle make and model: Vehicles that are less expensive or have multiple safety features cost less to insure.
Vehicle usage: Driving fewer miles per year reduces a vehicle’s exposure to the day-to-day risks of driving.
Vehicle equipment: Safety features like lane-keeping assist and blind-spot warning can help decrease the risk of accidents.
Coverage type: Generally, liability-only coverage costs less than full-coverage car insurance.
Coverage limits: The amount of coverage you buy affects annual premiums; minimum coverage is typically the cheapest but doesn’t offer enough financial protection for most drivers.
Deductible: A higher collision and comprehensive coverage deductible (liability coverage has no deductible) reduces rates since the insurer assumes less risk for the cost of repairs.
How to save on car insurance
Every state except New Hampshire requires drivers to carry at least a minimum amount of liability coverage. Insurance professionals recommend buying more coverage for greater financial protection in at-fault accidents. And if a driver leases or finances a vehicle, the leasing company or lender will require them to buy full-coverage car insurance.
Drivers can take steps to reduce the cost of car insurance, including:
Drive safely. Avoid speeding, hard braking, distracted driving, and other risky driving behaviors that could cause a claim.
Look for discounts. Most insurers offer discounts, such as good student or multi-car discounts, that can help reduce premiums.
Increase the deductible. A higher collision and comprehensive deductible typically leads to lower rates.
Adjust coverages. Liability-only coverage is the cheapest insurance available, and minimum coverage is the cheapest liability option. But drivers should be careful and buy enough coverage to adequately protect them financially.
Comparison shop. Drivers should compare rates from multiple companies every time their policy comes up for renewal.