Illinois Car Insurance Requirements

Minimum Coverage Requirements

Illinois requires drivers to carry minimum liability insurance of 25/50/20 — meaning $25,000 per person for bodily injury, $50,000 per accident for bodily injury, and $20,000 for property damage. PIP coverage is not required in Illinois, though it may be available as an optional add-on. These are the legal minimums; most insurance professionals recommend carrying significantly higher limits to protect personal assets in a serious accident. A common recommendation is at least 100/300/100, which provides substantially more protection without a proportionally large premium increase.

Average Car Insurance Costs in Illinois

Drivers in Illinois typically pay approximately $1,270 per year ($106/month) for car insurance, based on 2026 industry average data. Individual premiums vary significantly based on driving record, age, vehicle type, annual mileage, and selected coverage levels. Drivers with clean records may see rates well below the state average, while those with violations, claims, or high-risk profiles may pay substantially more.

Car Insurance Rates by City in Illinois

Insurance rates vary considerably by city within Illinois, reflecting differences in traffic density, accident frequency, vehicle theft rates, and local repair costs. The following estimated annual premiums are based on a typical driver profile with full coverage.

City	Est. Annual Premium
Chicago	$1,680/yr
Aurora	$1,340/yr
Rockford	$1,310/yr
Joliet	$1,360/yr
Springfield	$1,220/yr
Peoria	$1,200/yr

Estimates based on 2026 industry data for a typical driver profile. Individual rates vary based on driving history, vehicle, and coverage selection.

State Regulations and Key Rules

Illinois is an at-fault state. Uninsured motorist coverage is required at the same limits as liability coverage. Illinois uses a modified comparative fault system allowing recovery when a driver is less than 51% at fault.

What Makes Illinois Unique

Illinois mandates uninsured motorist coverage, providing automatic protection against uninsured drivers. Chicago's dense traffic contributes to higher urban rates compared to rural areas of the state.

Uninsured Drivers in Illinois

Approximately 11.8% of drivers in Illinois are estimated to be uninsured. Carrying uninsured and underinsured motorist coverage provides important protection against the financial impact of an accident with an uninsured or underinsured driver. Uninsured motorist (UM) coverage pays for your medical expenses and vehicle damage if you are hit by a driver without insurance or with insufficient coverage. Underinsured motorist (UIM) coverage fills the gap when the at-fault driver's policy limits are too low to cover your losses.

Risk Factors Specific to Illinois

Chicago's congested expressways produce high accident rates during rush hour. Winter storms and black ice are significant statewide hazards. Flooding along the Illinois and Chicago rivers periodically affects roadways.

How to Save on Car Insurance in Illinois

Chicago rates are significantly higher than the Illinois state average — suburban and rural drivers have a meaningful cost advantage. Illinois has strong insurer competition, making annual quote shopping particularly effective. Commuters who switch to remote work should immediately notify their insurer to potentially lower their annual mileage classification.

• Compare quotes from at least 3–5 insurers annually — rates for identical coverage can vary by hundreds of dollars.
• State minimums are typically insufficient for serious accidents — consider liability limits of at least 100/300/100.
• Ask about bundling discounts if you also need home or renters insurance.
• Consider telematics or usage-based insurance if you drive fewer miles than average or primarily drive during off-peak hours.
• Review your coverage annually, especially after major life changes: moving, buying a new vehicle, or adding a teen driver.

The information on this page is provided for general informational purposes only and reflects estimated industry averages and state requirements as of 2026. Insurance regulations and rates change periodically; always verify current requirements with your state's department of insurance or a licensed insurance professional before making coverage decisions. City-level and statewide premiums shown are approximations — individual rates will vary based on personal factors.