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Full coverage car insurance in Montana runs about $206 a month, or $2,476 a year, for the average driver. If you stick to your state’s minimum required liability coverage instead, that average drops to $43 a month, or $521 a year. Keep in mind these are statewide averages – your personal rate could be higher or lower.

Your actual premium depends on several factors – where you live, your age, your driving history, your credit score, and the type of vehicle you drive. Insurers also factor in state-level risks, such as accident frequency, repair and medical costs, theft rates, and weather patterns. That’s part of why drivers in busy cities pay more than drivers in rural areas.

Not everything is out of your hands. Keeping a clean driving record, building your credit score, bundling your policies, or shopping around for quotes can all help bring your rate down.

Average annual cost
$2,476

Average per month cost
$206

Average cost for state minimum coverage
$570 / Year

Cheapest car insurance company
State Farm

$2,058 / Year

Average cost for young drivers
$3,810 / Year

Average cost for Senior drivers
$2,515 / Year

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How much does car insurance cost in Montana?

Drivers in Montana pay an average of $206 per month ($2,476/year) for full coverage, or $43 per month ($521/year) for state minimum coverage.

The chart below shows average car insurance rates in Montana across different coverage levels. These are statewide averages, so your own rate may land higher or lower.

Liability onlyFull coverageNon-owner state minimum liabilityState minimum liability-only
$570$2,476$412$521
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What does each coverage type include?

  • State minimum coverage: Meets your state’s legal requirements, covering liability only. It’s the cheapest option, but leaves you with minimal protection in a serious accident.
  • Liability only: Covers damage and injuries you cause to others, but not your own vehicle or injuries.
  • Comprehensive coverage: Pays for damage to your car from non-collision events, like theft, fire, or weather.
  • Collision coverage: Pays to repair or replace your car after an accident, regardless of who’s at fault.
  • Full coverage: Combines liability with comprehensive and collision coverage, protecting your own vehicle too. It costs more, but offers the most complete protection.
  • Non owners: Designed for those who don’t own a vehicle but occasionally borrow one and want liability coverage.

See what you’d actually pay

Averages only get you so far. To see what you should actually expect to pay, use the calculator below to get an estimate in four steps:

  1. Enter your vehicle’s year
  2. Select your state
  3. Choose your vehicle’s make
  4. Choose your vehicle’s model

You’ll get instant estimates for state minimum, liability only, and full coverage.

Data last refreshed in 2026
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How to lower your rate in Montana:

  • Compare quotes from at least 3 insurers, since the first quote is rarely the best deal
  • Bundle home and auto policies to often qualify for a discount
  • Ask about available discounts and how you can qualify for them
  • Maintain a clean driving record, since fewer violations signal lower risk to insurers, which keeps your rate down
  • Avoid filing small claims, since paying minor costs out of pocket can help keep your rate from rising

How much car insurance coverage do you need in Montana?

Drivers in Montana must carry at least the state’s minimum liability coverage. This covers damage you cause to others, but not your own car or medical bills – if you’re at fault in a crash, you’d pay those costs yourself unless you have more coverage.

Minimum liability breaks down into two parts:

  • Bodily injury liability pays for others’ medical costs if you injure them. The “per person” limit caps what’s paid for one individual; the “per accident” limit caps the total for everyone.
  • Property damage liability pays to repair or replace others’ property, like their car or a fence.

Many drivers choose full coverage instead, which adds comprehensive and collision on top. It costs more, but protects your own vehicle too – from accidents, theft, or weather. If you’re financing or leasing, your lender likely requires it.

CoverageMinimum required

Bodily injury liability (per person)

$25,000

Bodily injury liability (per accident)

$50,000

Property damage liability

$20,000

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Who has the cheapest car insurance in Montana?

State Farm has the cheapest rates, at an average of $2,058 per year or $172 a month for a full coverage policy with 100/300/100 limits and $500 collision and comprehensive deductibles.

Nationwide also stands out for its affordable premiums, with an average premium of $181 per month or $2,167 annually.

While these companies have some of the lowest average rates in Montana, your actual premium may vary. It’s always worth comparing quotes to find the best deal.

Affordable car insurance providers in Montana

Graph
Table
Company GroupAvg. Annual PremiumAvg. Monthly Premium
State Farm$2,058$172
Nationwide$2,167$181
Progressive$2,775$231
Farmers$2,856$238
GEICO$2,858$238
Allstate$3,341$278
USAA*$1,274$106
*USAA is only available to military community members and their families.
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*USAA is only available to military community members and their families.
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How much does car insurance cost by city in Montana?

Car insurance rates in Montana vary by city – drivers in Missoula and Helena pay $2,131 to $2,185 a year, while those in Havre, Kalispell and Billings pay significantly more.

Location affects your rate because insurers price risk differently by area. Cities with heavier traffic, higher accident rates, and more theft or vandalism tend to have higher premiums, while areas with lower population density and fewer claims generally see lower rates.

CityAverage annual cost
Missoula$2,131
Helena$2,185
Anaconda-Deer Lodge County$2,246
Belgrade$2,266
Bozeman$2,279
Butte$2,312
Great Falls$2,341
Billings$2,454
Kalispell$2,500
Havre$2,548
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Auto insurance premiums vary significantly from city to city, so drivers need to be sure they’re getting the best deal. Insure.com has done the research for you. Get more information on auto insurance rates by city below.

How does age affect car insurance rates in Montana?

Age ranks among the biggest factors insurers use to set your premium. Rates typically peak for teen drivers, fall after age 25, hold steady through most of adulthood, and climb again once drivers reach their early 70s. Insurers view both ends of the age spectrum as higher risk: younger drivers because of inexperience, and older drivers because of slower reaction times and vision changes.

Here’s what drivers in Montana might expect to pay based on age and gender.

Car insurance rates for young drivers in Montana

Young drivers pay above-average premiums, since insurers consider them higher risk until they build more experience on the road.

In Montana, 20-year-old male drivers average $5,174 a year, while 20-year-old female drivers average $4,823. By age 25, though, rates drop to an average of $2,880 a year for men and $2,825 for women.

Age of driverAverage annual cost for Male driversAverage annual cost for Female drivers
20$5,174$4,823
21$4,080$3,881
22$3,766$3,614
23$3,408$3,270
24$3,187$3,079
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Car insurance rates for adults in Montana

Adult male drivers in Montana pay an average of $2,453 a year for full coverage, or $204 a month. Female drivers average $2,460 a year, or $205 a month, for the same coverage. Insurers see adults as lower risk than teens, who are just starting out, and seniors, who may have slower reaction times, which is why adult rates run lower.

Rates still vary from driver to driver, so comparing quotes is worth it to land the best price for your vehicle.

Age of driverAverage annual cost for Male driversAverage annual cost for Female drivers
25$2,880$2,825
30$2,584$2,594
35$2,507$2,533
40$2,457$2,494
45$2,416$2,455
50$2,306$2,334
55$2,245$2,239
60$2,230$2,210
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Car insurance rates for senior drivers in Montana

As you age into your senior years, your car insurance costs tend to climb. Insurers view older drivers as higher risk due to factors like slower reaction times and changes in vision, both of which can raise the odds of an accident.

At 65, men average $2,321 a year, and women average $2,281. By 70, those averages rise to $2,432 for men and $2,374 for women. At 75, rates climb further still, to $2,903 for men and $2,780 for women.

Even with rates trending upward, you can help keep costs in check by maintaining a clean driving record and taking advantage of senior discounts.

Age of driverAverage annual cost for Male driversAverage annual cost for Female drivers
65$2,321$2,281
70$2,432$2,374
75$2,903$2,780
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Which cars are the cheapest and most expensive to insure in Montana?

In Montana, Chevrolet Trax costs the least to insure, at $2,025 a year, while BMW M5 Touring costs the most, at $7,147 a year. Your choice of vehicle has a major impact on your premium – cars with strong safety ratings, low repair costs, and fewer claims cost less to insure, while cars that are expensive to fix, frequently stolen, or often in accidents cost more.

Cheapest cars to insure in Montana

Chevrolet Trax holds the lowest average premium in Montana, at $2,025 a year, with Honda CR-V close behind at $2,054 a year. Below are the cheapest cars to insure and their average annual rates:

Make ModelAvg. Annual Premium
Chevrolet Trax$2,025
Honda CR-V$2,054
Honda HR-V$2,062
Chrysler Voyager$2,063
Toyota RAV4$2,085
Jeep Wrangler$2,103
Subaru Crosstrek$2,115
Chevrolet Express$2,119
Volkswagen Tiguan$2,122
Honda Odyssey$2,130
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Most expensive cars to insure in Montana

BMW M5 Touring tops the list as the most expensive vehicle to insure in Montana, averaging $7,147 a year. Below are the most expensive vehicles to insure and their average annual premiums:

Make ModelAvg. Annual Premium
BMW M5 Touring$7,147
BMW M5$7,128
BMW M8 Gran Coupe$7,101
BMW i7$6,905
Audi e-tron GT$6,904
Mercedes-AMG G63$6,864
Porsche 911 Turbo$6,705
Mercedes-Maybach S-Class$6,517
Audi RS7$6,513
Mercedes-AMG SL-Class$6,387
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Methodology

To determine average premiums, Insure.com commissioned Quadrant Information Services for 2026 car insurance data. Our team of data analysts and editors analyzed quotes from 195 insurance companies across 34,595 ZIP codes.

Rates are based on a sample profile of 40-year-old male and female drivers driving a Honda Accord LX with a clean driving record and a good insurance score. We gathered quotes across three coverage levels:

  • Full coverage: limits of $100,000 per person for bodily injury, $300,000 per accident, and $100,000 for property damage per accident.
  • State minimum: the lowest coverage your state legally allows.
  • Liability only: limits of $50,000 per person for bodily injury, $100,000 per accident, and $100,000 for property damage per accident.

Additionally, we collected average rates for drivers across four age groups:

  • Teen drivers (16-19)
  • Young drivers (20-24)
  • Adult drivers (25-26)
  • Senior drivers (65-75)

To compare costs across vehicles, we also analyzed rates for 1,549 make and model combinations, based on a 40-year-old male driver with the same coverage level (100/300/100 limits with a $500 collision/comprehensive deductible), a 12-mile commute, and 10,000 annual mileage.

The national average comes to $2,578. These rates are for comparison purposes, and your own rates may vary.

Read more about our research standards and methodology.

65.7M

Quotes reviewed

195

No. of carriers analyzed

34.5K

ZIP codes analyzed

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Alisha Ambre

 
  

Alisha Ambre holds a Bachelor of Arts with honours in English Literature and Media Studies. She focuses on crafting clear, engaging content that makes complex information feel practical and approachable for everyday readers. When she’s not writing, she’s likely on the volleyball court or immersed in a good video game.

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