What affects your rate in Idaho
Idaho's average premium is 32% below the national average of $1,438, ranking #48 of 51 states by cost. NAIC cautions that state-to-state comparisons reflect differing coverage mixes, urban density and required coverages, not just carrier pricing.
How Idaho compares
| Benchmark | Per year |
|---|---|
| Idaho | $981 |
| National average | $1,438 |
| Most expensive — Florida | $1,994 |
| Cheapest — Maine | $926 |
Source: NAIC 2022/2023 Auto Insurance Database Report (combined average premium per insured vehicle, 2023 data, released February 2026).
Frequently asked questions
How much does car insurance cost in Idaho?
The average driver in Idaho pays about $981 per year — roughly $82 a month — for full-coverage car insurance, according to the NAIC 2023 Auto Insurance Database Report. State-minimum coverage typically costs much less.
Is car insurance more expensive in Idaho than the U.S. average?
No. At $981 per year, Idaho is about 32% below the national average of $1,438. That ranks it 48th out of 51 states and D.C. by cost.
Why is car insurance cheaper in Idaho?
Idaho's average premium is 32% below the national average of $1,438, ranking #48 of 51 states by cost. NAIC cautions that state-to-state comparisons reflect differing coverage mixes, urban density and required coverages, not just carrier pricing.
Does Idaho use your credit score to set car insurance rates?
Yes. Like most states, Idaho lets insurers use credit-based insurance scores, so a stronger credit tier can lower your rate. Only four states (California, Hawaii, Massachusetts, Michigan) ban it.
How can I lower my car insurance in Idaho?
Compare quotes from several insurers, raise your deductible, bundle auto with home or renters, and keep a clean driving record. For the same driver, premiums in Idaho can differ by hundreds of dollars between companies, so shopping around is the biggest lever.
About this estimate. The base figure is the NAIC combined average premium for Idaho (liability + collision + comprehensive, 2023). The calculator applies published industry multipliers (age, credit, record, coverage) from secondary sources (Bankrate / ValuePenguin modeled rates) and is an estimate for informational purposes only — not an insurance quote or offer. Credit-tier adjustments are not applied in states that ban credit-based insurance scoring (California, Hawaii, Massachusetts, Michigan). See our full methodology.