Ranked #46 of 51 by Cost
2026 Idaho Car Insurance Calculator
Estimate your monthly premium based on The Gem State averages
Rate Calculator
Local insurance tip
Idaho is one of the more affordable western states for auto insurance, but its rapid growth is pushing rates up in the Treasure Valley. The most effective way to keep premiums in check is to maintain a clean driving record. Idaho's insurers apply significant surcharges for at-fault accidents and moving violations and a single conviction can raise your rate for three years.
Cost Breakdown
| Coverage | Monthly | Description |
|---|---|---|
| ID minimum | $70 | Legal bare minimum (liability only) |
| Standard liability | $111 | High Liability, no physical damage |
| Full coverage | $148 | Comprehensive ($500 ded.) |
| Premium protection | $201 | Max liability ($250 ded.) |
| Age | Risk | Monthly |
|---|---|---|
| 16-19 | Very high | $437 |
| 20-24 | High | $244 |
| 25-54 | Standard | $148 |
| 55-69 | Low | $141 |
| 70+ | Moderate | $185 |
| Violation | Risk | Monthly |
|---|---|---|
| Clean | Standard | $148 |
| Speeding Ticket | Moderate | $181 |
| At-Fault Accident | High | $219 |
| DUI / DWI | Very high | $422 |
Idaho Snapshot · July 2026
$148/mo
State avg (-40% US AVG)
#46
National Rank
31%
County Spread
Rate by Neighboring States (7)
State Insight
Idaho is the most affordable of its neighbors by a significant margin outside Wyoming. Nevada is the starkest contrast, more than double Idaho's average despite sharing a border. Oregon and Washington sit moderately above Idaho, while Utah and Montana are the closest neighbors in cost.
Rate by Cities (Top 10)
Compared to ID avg ($148)
City Insight
Boise and Meridian are among the most affordable cities in the state despite being the largest and fastest growing, reflecting Ada County's newer infrastructure and relatively low claim frequency. Coeur d'Alene and Post Falls sit noticeably above the rest, their northern panhandle location and proximity to the Spokane metro driving rates above what the Treasure Valley pays.
Rate by Counties (44)
Compared to ID avg ($148)
County Insight
The county spread in Idaho is very narrow overall. Kootenai County in the north panhandle leads the state, likely influenced by cross-border exposure from Washington's more expensive market. Ada County, home to Boise, is among the most affordable, an unusual dynamic where the state's largest metro is not its most expensive.
What Every Idaho Driver Needs To Know
What are the minimum car insurance requirements in ID for 2026?
Idaho requires 25/50/15 minimums: $25,000 bodily injury per person, $50,000 per accident and $15,000 for property damage. Idaho is an at-fault state and does not require PIP or Uninsured Motorist coverage.
Does Idaho require Uninsured Motorist coverage?
No, UM/UIM is optional in Idaho, but insurers must offer it. Idaho's uninsured driver rate is moderate and the state's rural highway network means accidents involving uninsured drivers can occur in remote locations where immediate resolution is difficult. UM coverage provides a practical safety net at modest cost, particularly for drivers who regularly travel rural state highways.
How has Boise's growth affected insurance rates?
Boise has been one of the fastest-growing metros in the country for the better part of a decade and its road infrastructure has struggled to keep pace. Accident frequency in Ada County has risen sharply as traffic volume has outgrown highway capacity and vehicle theft has trended upward alongside population growth. Boise-area drivers have seen some of the steepest rate increases in the Mountain West as a result.
What are the penalties for driving uninsured in Idaho?
Driving without insurance in Idaho results in a fine of up to $75 for a first offense, one of the lower statutory penalties in the country, but also triggers license suspension and a requirement to file SR-22 for three years. The SR-22 requirement is the most impactful consequence, as it flags you as high-risk and typically raises your premiums significantly for the entire filing period.
Sources: Idaho DMV