- Our Idaho rate data comes from Quadrant Information Services, which pulls premium data directly from insurer filings with state regulators. Every rate filed in Idaho is a matter of public record.
- We track every residential ZIP code in Idaho and update rates monthly.
- Mark Fitzpatrick, a Licensed Property and Casualty Insurance Producer, authors and Mark Friedlander of the Insurance Information Institute reviews all content on this page.
- Our editorial standards keep our recommendations free from any influence by carrier relationships. Our rating guidelines apply the same criteria to every insurer we analyze.
Car Insurance Calculator in Idaho
Updated: May 26, 2026
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Why You Can Trust MoneyGeek’s Idaho Rates
Idaho Car Insurance Cost Calculator
MoneyGeek's car insurance cost calculator will get you a quick rate based on your personal profile and driving history. Your rates depend on the liability limits you set and whether you add comprehensive and collision coverage.
Enter your ZIP code to estimate car insurance premiums near you.
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How Idaho Car Insurance Rates Are Calculated
Idaho drivers pay an average of $81 per month for full coverage, $43 less than the national average of $124. Seven factors determine whether your rate comes in above or below that average. Some you can control. Some you can’t.
Insurer choice: the carrier gap in Idaho is wider than most comparison tools show
State Farm prices minimum coverage at $18 per month for an Idaho adult driver with a clean record, while Nationwide prices the same coverage at $76, a $58 monthly gap for identical coverage and the same driver profile. That spread is larger than the carrier range most national comparison tools surface, because the tools don’t always include the full set of carriers' writing policies here. Get at least three quotes from the cheapest car insurance companies in Idaho and confirm the lowest-priced option is in the mix before committing, since the cheapest carrier for your ZIP and profile may not be auto-populating in the tool you’re using.
ZIP code: Boise’s growth is concentrating claims in a smaller area
Boise drivers pay $46 per month for minimum coverage, compared to $39 in Idaho Falls, a $7 monthly gap that adds up to $84 per year for identical coverage. Ada County has added more than 100,000 residents since 2015, putting more vehicles and more claims into a corridor that Idaho’s historical traffic infrastructure wasn’t built for. Drivers in Meridian and Nampa, now folded into the Boise metro, see rates in that same elevated range. If you’ve moved to the Boise area from a smaller Idaho city, re-quoting captures your new ZIP’s claims exposure.
Age: Idaho rates for young drivers are 2.5 times adult costs
Young drivers pay an average of $201 per month for full coverage in Idaho, 2.5 times the $81 adult average cost. That multiplier is just above the national average of 2.4 times, so Idaho isn’t an outlier, but the dollar gap is still $120 per month. Senior drivers pay $108 per month, which also falls above the average cost for adults. The sharpest rate drop for most drivers happens around age 25, when insurers reclassify them out of the young-driver tier. Re-shop at 25 before the policy renews, not after. The renewal quote may not apply the lower tier automatically.
Credit score: the credit gap in Idaho exceeds the full coverage premium itself
Idaho drivers with excellent credit pay $129 per month for full coverage. Drivers with poor credit pay $321, a $192 monthly gap and $2,304 per year. That gap is 2.4 times the $81 average full coverage rate, which means credit history moves the rate here more than the coverage choice does. Improving your credit shows up at the next renewal when you actively re-quote; staying with the same carrier without requesting a new quote doesn’t necessarily capture the lower rate.
Driving record: a DUI adds $54 per month and triggers an SR-22 for three years
An at-fault accident adds $35 per month to the Idaho full coverage average cost. A DUI adds $54 per month and triggers an SR-22 certificate requirement that must stay active continuously for three years. If the SR-22 lapses, the Idaho Transportation Department suspends the license immediately. The surcharge runs for three years from the incident date. Drivers coming off a DUI should re-shop at month 33, before the policy renews, since not every carrier adjusts the rate automatically.
Coverage level: Idaho’s 25/50/15 minimum leaves a real gap for a $44 monthly difference
Idaho minimum coverage costs $37 per month versus $81 for full coverage. The $44 difference buys collision and comprehensive coverage for your own vehicle and raises liability limits from Idaho’s 25/50/15 floor to 100/300/100. Idaho’s $15,000 property damage minimum doesn’t cover most newer vehicles. A single pickup truck or SUV totaled in a Boise intersection can exceed it. Idaho is an at-fault state, so damages above your limits become a personal liability. Drivers with a financed vehicle don’t make this choice; lenders require full coverage until the loan is paid off.
Vehicle: hail and spring flooding make comprehensive worth keeping on older Idaho vehicles
Idaho’s primary comprehensive risk is hail across the southern Snake River Plain and the Magic Valley corridor, with spring flooding from mountain snowmelt affecting low-lying communities statewide. NOAA storm records document consistent hail events across southern Idaho that can total a lower-value vehicle in a single storm. Drivers who own older vehicles outright sometimes drop comprehensive to cut costs. The right comparison: your car’s current market value against three years of full coverage premiums. If the car is worth less than that sum, dropping comprehensive saves money. If it’s worth more, the coverage pays for itself after one total loss
How Much Car Insurance Do You Need in Idaho?
Idaho's minimum coverage requirements are lower than most states, but even meeting them doesn't mean you're fully protected after a serious accident. Answer the questions below to find out how much coverage fits your situation.
Determine How Much Car Insurance Do You Need in Idaho
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What to Know About Your Idaho Coverage Recommendation
Your result reflects your specific situation, not Idaho’s state minimums.
- Idaho’s 25/50/15 minimums cover less than most drivers expect. The state requires $25,000 per person and $50,000 per accident for bodily injury, plus $15,000 for property damage. A two-vehicle collision in Boise, where used vehicle transaction prices now regularly exceed $25,000, can exhaust the property damage limit before medical costs are counted. If you cause a crash that generates $80,000 in combined damages, the minimums cover $65,000 and you’re personally on the hook for the rest.
- Idaho is an at-fault state, which means damages above your policy limits are a personal liability. The at-fault driver is responsible for the full cost of an accident, and if the policy doesn’t cover it, a civil judgment can reach home equity and savings. Drivers with a home or meaningful assets should carry at least 100/300/100 limits. The $44 monthly difference between Idaho’s minimum and full coverage is what closes that gap.
- About one in 13 Idaho drivers carries no insurance, based on an uninsured driver rate of 7.9%. That rate is well below the 15.4% national average, so the risk here is lower than in high-uninsured states, but an uninsured driver who hits you still leaves you with medical bills and repair costs your policy has to cover. Idaho requires insurers to offer UM/UIM coverage. Declining it requires a signed written rejection form.
What Each Coverage Type Means
Bodily injury liability
Idaho’s minimum is $25,000 per person and $50,000 per accident for bodily injury, lower than most states’ required floors. MoneyGeek recommends at least 100/300 limits for drivers with assets to protect: $100,000 per person, $300,000 per accident. The $44 monthly difference between minimum liability and 100/300/100 full coverage in Idaho is the cost of closing that gap.
Property damage liability
Idaho’s $15,000 property damage minimum is low enough that a single newer pickup truck or SUV can exceed it. If you total another driver’s car and your coverage runs out, you pay the difference out of pocket. Drivers with savings or home equity should carry at least $100,000 in property damage liability. The cost of raising PD limits from $15,000 to $100,000 is a fraction of what an uncovered judgment costs.
Uninsured and underinsured motorist coverage
About 7.9% of Idaho drivers carry no insurance. UM/UIM coverage pays your medical costs and repair bills when the at-fault driver can’t. Declining it in Idaho requires a signed written rejection form. Adding UM/UIM costs a fraction of what an uninsured-driver crash costs out of pocket.
Collision and comprehensive
Lenders require both on any financed or leased vehicle. For drivers who own their vehicle outright, comprehensive covers Idaho’s documented hail and flooding risk, the same events that can total a lower-value car without warning. Before dropping comprehensive, compare your vehicle’s current market value against three years of full coverage premiums. If the vehicle is worth less, dropping saves money. If it’s worth more, one total loss pays back the premium cost.
Gap insurance
Gap insurance pays the difference between your car’s actual cash value and what you still owe on the loan if it’s totaled. Drivers with a recently financed vehicle whose loan balance exceeds the car’s current market value should add it. That situation is common in the first two years of a loan, when depreciation runs faster than payoff.
SR-22
Idaho uses an SR-22 filing, required after a DUI conviction or driving without insurance. Serious traffic violations can also trigger the requirement. An SR-22 is not a type of insurance. It’s a certificate your insurer files with the Idaho Transportation Department to prove you carry at least the state minimum 25/50/15 limits. The filing must stay active for three years. If it lapses, the state is notified immediately and the license is suspended. Not all carriers file SR-22 certificates, so drivers with a DUI or a lapsed-coverage history should shop Idaho SR-22 specialists alongside standard carriers. Drivers who need the filing but don’t own a vehicle can ask about non-owner SR-22 insurance.
Bottom Line and Next Steps
Idaho’s 25/50/15 minimums cost $37 per month. The recommended floor is 100/300/100 full coverage at $81 per month. The $44 difference buys collision and comprehensive coverage for your own vehicle and raises your liability limits past Idaho’s minimum, which doesn’t cover most newer vehicles and leaves at-fault drivers personally responsible for anything above it. Idaho is an at-fault state with a $58 carrier gap at minimum coverage, so the insurer you choose matters as much as the coverage level you pick.
- 1Get at least three quotes and check State Farm first
State Farm prices Idaho minimum coverage at $18 per month. Nationwide prices the same coverage at $76. That $58 gap exists for identical coverage and the same driver profile, and national comparison tools don’t always surface both ends of it. Compare the cheapest Idaho car insurance companies before choosing a policy.
- 2Confirm UM/UIM is in your quote before signing anything
Idaho law requires auto insurance companies to offer uninsured and underinsured motorist coverage and to get your signed written rejection if you decline it. That requirement is specific to Idaho. Drivers who moved from states without it may not know to check. Ask each carrier to confirm UM/UIM is included in the quoted premium.
- 3Run the calculator before your renewal date, not after
Idaho carriers can raise rates at renewal without advance notice beyond the policy documents. If your credit has improved or a violation has aged off your record, the renewal quote may not reflect either change automatically. Get a new estimate before the renewal date to confirm the current carrier is still the right one.
- 4A DUI surcharge ages off at the three-year mark, so re-shop at month 33
A DUI adds $54 per month to Idaho full coverage costs. In Idaho, violations impact your rate for three years from the incident date. At month 33, shop Idaho SR-22 carriers and standard carriers together. The SR-22 requirement ends at three years, the surcharge becomes negotiable, and some carriers will apply the clean-record rate before others adjust automatically.
Idaho Car Insurance Estimate: FAQ
How much is car insurance in Idaho per month?
Idaho drivers pay $81 per month for full coverage and $37 per month for minimum coverage on average. Full coverage costs $43 less per month than the $124 national average. Neighboring Montana averages $118 per month and Utah averages $132. Idaho average car insurance costs vary by driver profile and company across both coverage levels.
Why is car insurance cheap in Idaho?
Idaho’s rates land well below the national average because of two conditions that don’t exist in most lower-cost states simultaneously: low population density that keeps claims frequency down statewide, and no structural rate-inflating system like Florida’s no-fault PIP requirement or California’s prior-approval regulatory bottleneck. Fewer vehicles per square mile means fewer collisions per policy, and Idaho’s at-fault system doesn’t build PIP minimums into every premium. The exception is the Boise metro. Ada County’s rapid growth has concentrated vehicles and claims into a denser corridor, and rates there are rising as the traffic pattern catches up with the population. Outside of Boise, the rural driving conditions that kept Idaho rates low for decades are still in place.
Does Idaho require an SR-22 or FR-44?
Idaho uses an SR-22, which is a certificate your insurer files with the Idaho Transportation Department proving you carry at least the state minimum 25/50/15 liability coverage. An SR-22 is required after a DUI conviction or driving without insurance. Serious traffic violations can also trigger the requirement. The filing must stay continuously active for three years. If it lapses, your insurer notifies the state immediately and your license is suspended until you reinstate compliant coverage and refile. Not all carriers write SR-22 policies, so confirm availability before quoting. Drivers who need the filing but don’t own a vehicle can use non-owner SR-22 insurance to satisfy the requirement.
Our Idaho Car Insurance Estimate Methodology
Our base profile for all costs and modifications is:
- 40 years old
- Good credit
- Drives a 2012 Toyota Camry
- Clean driving record
Rates come from insurer filings via Quadrant Information Services.
Full coverage policies reflect 100/300/100 liability limits, comprehensive and collision coverage and a $1,000 deductible. Minimum coverage reflects Idaho’s state-mandated minimums of $25,000 bodily injury per person, $50,000 bodily injury per accident and $15,000 property damage per accident.
MoneyGeek’s auto insurance methodology explains how Quadrant rate data is collected and weighted to produce the estimates on this page.
Sources
- Idaho Transportation Department — Minimum Liability Insurance Requirements: https://itd.idaho.gov/dmv/
- Idaho Code § 49-117 — Motor Vehicle Financial Responsibility: https://legislature.idaho.gov/statutesrules/idstat/title49/t49ch1/sect49-117/
- Idaho Code § 49-1229 — SR-22 Certificate of Financial Responsibility: https://legislature.idaho.gov/statutesrules/idstat/title49/t49ch12/sect49-1229/
- Idaho Code § 41-2502 — Uninsured Motorist Coverage: https://legislature.idaho.gov/statutesrules/idstat/title41/t41ch25/sect41-2502/
- Idaho Code § 6-801 — Contributory Negligence / Comparative Fault: https://legislature.idaho.gov/statutesrules/idstat/title6/t6ch8/sect6-801/
- NOAA National Centers for Environmental Information — Storm Events Database (Idaho): https://www.ncdc.noaa.gov/stormevents/
About Mark Fitzpatrick
Mark Fitzpatrick, a Licensed Property and Casualty (P&C) Insurance Producer in Connecticut, is MoneyGeek's resident insurance expert. He has spent nearly a decade analyzing the market, first at LendingTree and now at MoneyGeek, where he has produced original research on hundreds of carriers and millions of rates across auto, home, renters, health and life insurance.
He covers economics and insurance at MoneyGeek, and his work has been featured in The Washington Post, The New York Times and NPR, among other outlets.
Like all MoneyGeek analysts, he draws on independent cost and consumer experience data. No insurance company partnership influences his recommendations.
Fitzpatrick earned his degrees from Johns Hopkins University (M.A. Economics and International Relations) and Boston College (B.A.). He began his career in financial risk management at State Street. He's also a five-time “Jeopardy!” champion.