Average Cost of Car Insurance in Illinois for 2026

Illinois drivers pay an average of $99 per month for full coverage and $50 per month for minimum coverage. Full coverage runs 20% below the national average of $124, and minimum coverage runs $9 below the national figure of $59. The $49 monthly gap between the two coverage levels is meaningful, and your actual rate will vary based on your city, insurer, credit score and driving record.

In Illinois, your deductible choice affects your rate more than your liability limits. Adding comprehensive and collision to minimum liability costs $15 more per month, bringing the total from $53 to $68. Illinois ranked fourth nationally for vehicle theft in 2023 with over 43,000 cars stolen, and severe storms and tornadoes generate over $2 billion in annual claims statewide, both of which make comprehensive coverage worth carrying far beyond Chicago.

Dropping from a $1,000 deductible to $0 on a minimum liability policy adds $75 per month, from $68 to $143. Stepping up from minimum liability to 100/300/100 limits with the same $1,000 deductible adds only $37, from $68 to $105. Paying more to eliminate your deductible than to raise your liability limits is a trade-off worth understanding before you choose.

Chicago drivers pay $146 per month for full coverage, $56 more per month than Champaign's $90. That $672 annual gap applies to every Chicago driver before any other factor comes into play. Chicago's higher rate comes from dense traffic, high vehicle theft and more accidents per driver than anywhere else in the state. Those are costs built into the city's rate that don't go away by switching companies.

Drivers in Joliet, Waukegan and surrounding suburbs pay between $105 and $112 per month, within $13 of the state average. That's close enough that company selection can close the gap entirely, giving those drivers meaningful room to save through insurer shopping in a way that Chicago drivers simply don't have.

A 16-year-old male pays $306 per month on a family plan with full coverage, 2.9 times what a 40-year-old pays on the same plan. Illinois's pattern differs from most states. The largest single-year rate drop comes at 16 to 17, not in the late teens or early twenties, which means the biggest savings arrive earlier than most drivers expect.

Age and gender affect car insurance rates differently by state, and in Illinois male and female rates differ at every age from 16 through 25. At 16, male drivers pay $22 more per month than female drivers on the same coverage. That gap narrows with age and closes by the mid-twenties. Drivers under 25 can find a breakdown of what 16-year-olds and 17-year-olds pay, along with an Illinois car insurance calculator to estimate your own rate by age and profile.

In Illinois, a clean-record driver who gets hit by another driver sees full coverage climb $9 per month, from $105 to $114, a $100 annual increase for an accident they didn't cause. An at-fault accident pushes that to $159 per month, and a DUI raises the monthly cost to $192, adding $1,036 per year. Serious violations including a DUI may require an SR-22 filing to maintain driving privileges in Illinois.

Texting while driving at $138 per month costs more than speeding at $135, reflecting Illinois's heavier surcharge for distracted driving. Standard violations affect your rate for about three years, and a DUI surcharge runs longer.

Drivers with multiple violations can find specialized coverage through high-risk car insurance in Illinois. Get new quotes at the three-year mark since insurers won't reduce your rate automatically at renewal.

Drivers with poor credit pay $298 per month for full coverage while those with good credit pay $99, a $199 monthly difference that adds up to $2,388 per year. That gap is more than double the full coverage premium itself, and it's larger than the city gap ($56 per month) and the company gap ($35 per month) combined. Illinois permits insurers to use your credit score when setting premiums, so the same driver with the same record pays a very different rate depending on their credit profile.

Improving your credit score is the only factor that lowers your premium over time without requiring a coverage change or a company switch. Lower-income drivers will need to get new quotes after their credit improves since insurers won't reprice automatically.

The vehicle you drive has a bigger effect on your Illinois rate than your driving record does. The Tesla Model Y costs $221 per month to insure, $84 more than the Ford F-150 at $137. That $84 monthly gap adds up to $1,008 per year, the same as the annual spread between GEICO and Erie Insurance for any driver.

Illinois's high vehicle theft rates statewide mean all drivers carry more risk on comprehensive coverage, not just those in Chicago. EVs add to that cost since battery replacements and specialized components require repair shops that aren't always available in smaller Illinois markets. The Honda Civic at $138 per month is just $1 more than the Ford F-150, making it the most affordable sedan in the table. If you want better fuel economy without the full EV insurance cost, the Prius at $151 per month is $70 less per month than the Model Y.

Poor credit is the dominant rate driver in Illinois, adding $199 per month over good credit. That's more than double the full coverage premium of $99 per month and larger than the city gap ($56 per month) and company gap ($35 per month) combined. For any Illinois driver with poor credit, improving it is the most effective thing you can do to lower your rate. Illinois is an at-fault state, which means if you cause a crash, your liability coverage pays for the other driver's damages.

GEICO at $69 per month is the lowest full coverage option in this set, and cheapest car insurance in Illinois data shows GEICO holds that position across most driver profiles. A low rate matters less if the company is slow to pay or difficult to work with after a crash, and the best car insurance companies in Illinois rankings factor claims performance in alongside rate so you can weigh both before switching.

The same driver profile can produce quotes $35 apart depending on the company, and for Chicago drivers that gap sits on top of an already elevated city premium. Get quotes from at least three companies before renewing.

Car insurance rates in Illinois can differ by $56 per month between Chicago and Champaign, and poor credit adds $199 per month on top of that. These are the most common questions from residents trying to understand their premiums.

We used this profile to determine auto insurance costs across all available ZIP codes and cities in Illinois.

• 40 years old

• Clean driving record

• Good credit

• 2012 Toyota Camry LE

Sections covering costs by age and driving record use rates for those driver profiles, while keeping all other factors constant.

Minimum coverage represents Illinois's minimum liability coverage requirements. Full coverage includes a policy with 100/300/100 liability limits plus a $1,000 deductible for both comprehensive and collision coverage.