Cheapest Car Insurance in Idaho

GEICO offers Idaho's cheapest full coverage car insurance at $614 per year, which comes out to approximately $51 per month and is 37% cheaper than what most drivers in the state pay. State Farm follows at $647 a year, only $33 more than GEICO. American National P&C ranks third at $721 a year, followed by Auto-Owners at $779 and Grange at $815 yearly.

State Farm offers Idaho's cheapest minimum coverage car insurance at $210 a year, which works out to about $18 a month and sits 52% cheaper than the state average. Farm Bureau charges $310 a year for the same required coverage, meaning choosing State Farm saves $100 a year. Grange costs $262 annually, GEICO charges $272 and American National P&C comes in at $284.

GEICO offers the cheapest rates in many of Idaho's largest cities, including Boise, Caldwell, Idaho Falls, Meridian, Nampa and Pocatello. State Farm has the lowest prices in Lewiston, Post Falls, Rexburg and Twin Falls. American National P&C offers the best rates in Coeur d'Alene.

GEICO is 40% below the Boise city average for both coverage levels: $27 per month for minimum and $54 for full. In Lewiston, State Farm charges $17 per month for minimum coverage and $53 for full.

Idaho Farm Bureau offers Idaho's cheapest full coverage car insurance for teens at $81 monthly for 16-year-olds, keeping the lowest price at age 17 at $80 a month. American National P&C becomes the most affordable option at age 18 with a $74 monthly rate and continues offering the best pricing for young adults through age 25.

American National P&C charges $63 a month for 19-year-olds, $54 a month at age 20 and $30 a month at age 25. The difference between ages 16 and 25 adds up to $612 in yearly savings. Teens under 18 need a parent or guardian to cosign a policy, so most families add teen drivers to an existing plan instead of buying separate coverage.

Note: Teen driver insurance rules vary from state to state. If you're unsure about the requirements in your area, reach out to a licensed insurance agent who can explain age limits, consent rules and the coverage levels new drivers must meet.

American National P&C offers Idaho's cheapest minimum coverage car insurance for seniors at age 65, charging $26 a month for minimum coverage and $27 for full coverage. State Farm offers 70-year-olds the same $26 monthly rate for minimum coverage and $60 a month for full coverage.

Idaho Farm Bureau has the best prices for 80-year-olds at $32 a month for minimum coverage and $70 a month for full coverage. Minimum coverage only goes up about $6 a month from ages 65 to 80. Across these senior age groups, all three companies offer prices that are 38% to 60% below Idaho's average.

State Farm offers Idaho's cheapest minimum coverage car insurance for drivers with a DUI at $19 a month, which is 61% below Idaho's average. American National P&C follows at $36 a month.

State Farm leads full coverage at $58 per month. American National P&C charges $91. Grange is $40 per month for minimum and $124 for full. Travelers runs $57 for minimum and $121 for full. Farmers charges $59 for minimum and $122 for full.

Two insurers tie for Idaho's cheapest SR-22 minimum coverage: American National P&C and State Farm both charge $35 per month. American National P&C also leads on full coverage SR-22 at $78 per month, 39% below the state average.

GEICO charges $38 for minimum and $80 for full coverage SR-22. Idaho Farm Bureau is $45 for minimum and $102 for full. Grange runs $46 for minimum and $105 for full.

Idaho's cheapest non-owner car insurance comes from State Farm at $33 per month, 35% below the state average. Non-owner policies cover drivers who need proof of insurance without owning a vehicle.

These policies cost less than standard auto insurance because they only include liability coverage: protection for damage you cause to others, not to a specific car. They're useful for license reinstatement after a suspension, SR-22 requirements or regular car rentals. Auto-Owners charges $35 per month and GEICO charges $52.

An at-fault accident raises Idaho premiums 20% to 40%, and those higher rates hold for three to five years. State Farm is the cheapest option: $21 per month for minimum coverage after an accident, 51% below the state average, and $62 for full coverage. American National P&C and Farm Bureau both charge $32 for minimum. GEICO charges $40. Grange tops out at $90 per month for full coverage.

State Farm offers Idaho's cheapest minimum coverage car insurance for drivers with a speeding ticket at $19 a month, which comes to $228 a year and also has the lowest full coverage rate at $58 a month. GEICO follows at $61 a month for full coverage, while Farm Bureau and American National P&C both charge $69 a month. Auto-Owners ranks fifth at $67 a month for full coverage with a speeding ticket, and the difference between State Farm and Auto-Owners adds up to $108 in yearly savings.

Grange offers Idaho's cheapest minimum coverage car insurance for drivers with bad credit at $676 a year, or about $56 a month. For full coverage, Grange also has the lowest rate at $120 a month, giving drivers $55 in monthly savings compared to American National P&C, which charges $175. That gap adds up to $660 in yearly savings, a meaningful difference for low-income drivers.

American National P&C costs $67 a month for minimum coverage and $175 for full coverage. GEICO charges $81 a month for minimum coverage and $196 for full coverage, while Farm Bureau has minimum coverage at $88 a month and full coverage at $232.

Your location, driving record, age and credit score all influence your Idaho car insurance rates. State Farm offers the lowest minimum coverage at $210 a year, while GEICO’s full coverage averages $614 yearly. Comparing quotes and using available discounts can help you cut your yearly costs by a lot.

If you're searching for cheaper auto coverage in Idaho, these expert-answered questions can help you understand your options.

Our Research Approach

Idaho's car insurance market presents unique challenges. Rates vary between Boise's urban corridors and rural mountain communities, and your coverage choices matter more in a state with low minimum requirements. 

Wildlife collisions, harsh winter weather and isolated roads create risks that generic coverage often misses. Our research identifies which insurers offer the lowest rates across Idaho's diverse landscape while providing the financial protection you actually need.

We collected auto insurance data from the Idaho Department of Insurance and Quadrant Information Services, analyzing quotes from 12 major insurers and reviewing more than 200 million rate comparisons across every residential ZIP code in Idaho.

Sample Driver Profile

Our baseline rates use a 40-year-old driver with good credit and a clean driving record. This profile represents typical Idaho drivers without violations or poor credit that increase premiums. You'll see base rates here. Your personal quote will adjust based on your specific driving history, credit and location.

Coverage Levels We Compared

We analyzed two coverage scenarios:

Minimum coverage: Idaho's required liability limits of $25,000 per person for bodily injury, $50,000 per accident for bodily injury and $15,000 per accident for property damage (25/50/15). This meets legal requirements but often falls short in serious accidents.

Full coverage: Liability limits of $100,000/$300,000/$100,000 plus comprehensive and collision coverage with a $1,000 deductible. You're covered for damage you cause to others and repairs to your own vehicle.

Location Affects Your Rate

Idaho rates vary by region. Drivers in Boise pay different amounts than those in Idaho Falls or Coeur d'Alene for identical coverage. Our ZIP code analysis reveals where drivers overpay because of geography alone.

For more information, see the detailed methodology here.