Cheapest Car Insurance in Illinois (2026)
Erie leads minimum coverage at $42/month. Illinois drivers pay an average of $198/month for full coverage. Verified May 2026 against state insurance commissioner and 2026 carrier analyses.
Updated May 1, 2026 · WebSearch-verified state minimums (25/50/20 + UM/UIM — $25K BI per person, $50K BI per accident, $20K property damage, plus mandatory uninsured motorist coverage), average costs, and cheapest-carrier rankings.
Quick Answer — Illinois
- Minimum coverage required: 25/50/20 + UM/UIM — $25K BI per person, $50K BI per accident, $20K property damage, plus mandatory uninsured motorist coverage
- Avg full coverage cost: $198/month ($2,376/year)
- Cheapest carrier (minimum): Erie — $42/mo avg
- Cheapest carrier (full coverage): Liberty Mutual — $130/mo avg
What's special about car insurance in Illinois
- UM/UIM coverage is mandatory (not optional like in many states)
- Allows credit-based insurance pricing
- Chicago metro pays significantly more than downstate IL — theft and traffic density drive rates up
- Erie Insurance (regional carrier) is consistently cheapest for IL residents who qualify for membership
Illinois car insurance at a glance
| Feature | Detail | Monthly | Annual |
|---|---|---|---|
| Minimum coverage required | 25/50/20 + UM/UIM — $25K BI per person, $50K BI per accident, $20K property damage, plus mandatory uninsured motorist coverage | — | — |
| Avg minimum coverage cost | $56/mo | $667/yr | — |
| Avg full coverage cost | $198/mo | $2,376/yr | — |
| Cheapest carrier (minimum) | ErieBest | $42/mo | $504/yr |
| Cheapest carrier (full coverage) | Liberty MutualBest | $130/mo | $1,559/yr |
Which carrier should Illinois drivers pick?
Match your situation to the right carrier. Illinois-specific pricing varies by carrier, but the patterns below hold for most drivers.
- You want the absolute cheapest minimum coverage→ ErieCheapest in Illinois at $42/mo. Erie regional to IL/OH/PA/IN; Travelers cheapest national carrier (26% below state avg)
- You want full coverage at the lowest price→ Liberty Mutual$130/mo full coverage in Illinois.
- You qualify for USAA (military / veteran / family)→ USAAUSAA is almost always cheapest for eligible members in any state — quote them first.
- You bundle auto + home→ State Farm23% bundle discount = avg $1,010/yr savings — highest in industry.
- You drive defensively + would let an app monitor→ Progressive (Snapshot)Avg $322/yr savings for safe drivers. Up to 30% off baseline.
- You have a high-risk record (DUI, accidents, tickets)→ ProgressiveSpecialty pricing for non-standard drivers — beats GEICO/State Farm in this tier.
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$42/mo
Cheapest minimum coverage
$198/mo
State avg full coverage
25/50/20 + UM/UIM
State minimum required
May 2026
Last verified
Our methodology: We research, test, and verify every opportunity to ensure accuracy and value.
WalletGrower is independently owned and operated. We maintain editorial independence from our affiliate partners.
Methodology & sources
All Illinois data on this page was WebSearch-verified May 2026 against the Illinois insurance commissioner / DMV and at least one of the following 2026 carrier analyses:
Caveat: Real quotes vary by ZIP code, age, driving record, credit (where allowed), vehicle, and coverage level. The averages cited are useful for cross-carrier comparison but your actual quote will differ — sometimes by hundreds of dollars in either direction. Always quote 3+ carriers before deciding.
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