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Where Do Most Car Accidents Happen in Illinois?
“Where do most car accidents happen in Illinois?” is an essential question for every motorist, as it can help you exercise extra caution in certain areas. In 2023, there were 299,133 motor vehicle accidents in Illinois, which is much higher than in neighboring states.
In that same year, Indiana experienced 198,247 collisions, Iowa reported 52,843, and Kentucky saw 139,022 accidents.
Understanding where car accidents occur most frequently is crucial for enhancing road safety. This analysis is pivotal not only for Illinois but also for providing insights into regional accident trends and for identifying strategic measures to mitigate road risks.
If you’ve been in a motor vehicle accident, you need experienced personal injury attorneys to guide you through the legal process and advocate for your rights. Contact us today to schedule a free consultation about your options.

Identifying Top Crash Counties
The information presented in this article is taken from the Illinois Department of Transportation (IDOT) Crash Facts and Statistics report for 2023. The data provides a comprehensive analysis of motor vehicle collisions across Illinois, allowing for a detailed examination of the areas most affected by traffic incidents.
Top 10 Crash Counties
The top 10 counties in Illinois with the highest car accident rates in 2023 are as follows:
- Cook County
- DuPage County
- Will County
- Lake County
- Kane County
- Winnebago County
- St. Clair County
- Madison County
- Sangamon County
- McHenry County
Chicagoland Area
A significant portion of these crash incidents is concentrated within the Chicagoland area, which, from the list above, includes all of Cook, DuPage, Lake, Kane, and Will counties, as well as portions of McHenry County. This metropolitan region is one of the most populous in the United States and serves as a central hub for commerce, transportation, and daily commuting.
Factors Contributing to Higher Accident Rates
The elevated number of accidents in these counties can be attributed to several factors:
- Population Density: Chicagoland’s high population density means more vehicles on the road, leading to increased chances of collisions. Rural areas generally have significantly fewer crashes.
- Traffic Volume: Major highways and arterial roads in this area handle substantial traffic, especially during rush hours, contributing to higher accident frequencies. Large vehicles, like semi-trucks, may also be on the road, which can increase the risk of crashes.
- Urban Infrastructure: Complex road networks and numerous intersections in urban centers can pose additional hazards for drivers. Transitions from slow-moving traffic to highway speeds can be challenging, while merging lanes require drivers to stay alert and off their phones.
- Poor Weather Conditions: While most accidents occur on dry roads, Chicagoland’s unpredictable weather can cause serious issues for motorists.
Understanding these contributory factors is pivotal in developing targeted strategies to improve road safety and reduce the incidence of traffic collisions in these high-risk areas.

Historical Trends & Fluctuations
Examining the year-over-year data for the top 10 counties provides a clearer picture of accident trends from 2021 to 2023. Here is a breakdown of total traffic accidents over these years:ies provides a clearer picture of accident trends from 2021 to 2023. Here is a breakdown of total traffic accidents over these years:
County | 2023 | 2022 | 2021 | % Increase from 2023 to 2021 |
---|---|---|---|---|
Cook County | 160,036 | 157,973 | 156,395 | 2.32% |
DuPage County | 17,203 | 16,520 | 15,329 | 12.22% |
Will County | 13,707 | 14,052 | 13,459 | 1.84% |
Lake County | 12,181 | 12,069 | 11,173 | 9.02% |
Kane County | 10,286 | 9,980 | 9,389 | 9.55% |
Winnebago County | 5,745 | 5,777 | 6,052 | -5.07% |
St. Clair County | 5,252 | 5,391 | 5,630 | -6.71% |
Madison County | 5,236 | 5,225 | 5,642 | -7.19% |
McHenry County | 4,590 | 4,471 | 3,968 | -4.92% |
Sangamon County | 4,212 | 4,622 | 4,828 | 6.14% |
Data shows that some counties are getting safer, while other counties are getting more dangerous for motorists. DuPage County showed the largest rise in cases, while Madison County has had a significant decrease in accident rates.
In Illinois, the total number of traffic accidents also increased between 2021 and 2023, with 299,133 reported in 2023, compared to 298,347 in 2022 and 295,604 in 2021. This upward trend underscores the growing importance of implementing effective traffic safety measures.
Year | Total Accidents |
---|---|
2023 | 299,133 |
2022 | 298,347 |
2021 | 295,604 |
Crash Surge Analysis
Identifying counties with a significant rise in traffic accidents is crucial for understanding the underlying causes and implementing targeted interventions.
DuPage County experienced the highest increase in crashes from 2021 to 2023, rising by 12.22%. However, the population only grew by 0.4% during that time, suggesting that other factors contributed to the increase.
This may be due to the fact that 18% of the county’s population is above age 64. Many drivers over retirement age may be experiencing cognitive decline that makes them less safe on the road. There are no age restrictions on driver’s licensing, making it a personal decision when to stop driving.
Cook County, the most populous county in the state, did not have a large increase in crashes, but this does not mean the streets are completely safe. However, it does suggest that Chicagoland’s safety initiatives are having an effect and making a difference.
Understanding these trends enables policymakers and traffic safety authorities to tailor interventions appropriately, addressing the specific needs and challenges of each county to enhance overall road safety.

Safety & Public Awareness
Promoting safety and raising public awareness are pivotal to improving adherence to traffic laws. Chicago and Illinois have tried to do this by enacting some of the following initiatives:
The SAFE Ambassadors
The outreach and engagement team within the Chicago Department of Transportation (CDOT) is known as the SAFE Ambassadors, an acronym for Streets Are For Everybody.
Established in 2001, the Ambassadors have played a crucial role in educating and motivating Chicago residents about traffic safety, promoting various transportation options, and supporting numerous CDOT initiatives. Their efforts aim to enhance public awareness and foster a culture of safety across the city’s streets.
Chicago Vision Zero
Chicago Vision Zero is also focused on preventing collisions through a comprehensive, data-driven approach. Data analysis pinpoints areas across the city that require safety enhancements. Shaping design efforts involves studying crash data to uncover specific issues in project zones, leading to the development of safe design solutions.
Success is measured by gathering field data and conducting observations to evaluate the impact of these projects, ensuring the goal of enhancing public safety is met.
Buckle Up Illinois
The Illinois Department of Transportation (IDOT) sponsors the Buckle Up Illinois campaign, which emphasizes the importance of proper occupant protection.
This program educates drivers and passengers about the life-saving benefits of seat belts and child safety seats. By promoting the correct use of these safety mechanisms, the campaign aims to reduce the risk and severity of injuries in a crash.
Not only can seat belts save lives in motor vehicle crashes, but they are also required by law. Chicago requires both drivers and front-seat passengers to wear seat belts and children to be properly fastened in a car seat (§9-76-180).
However, it’s important to note that under Illinois law, an insurance company cannot deny its liability in an accident if the occupants were not wearing a seat belt (§625 ILCS 5/12-603.1). However, seat belt usage is still admissible in court and can influence whether you receive a favorable verdict, as was found in Korando v. Uniroyal Goodrich Tire Co.
You should always wear a seat belt and consult with an attorney if you’re concerned about contributory negligence, which is how your actions contributed to the accident.
Drive Sober Illinois
Another program is Drive Sober Illinois, which targets impaired driving. This initiative seeks to prevent alcohol- and drug-induced driving, which significantly impairs a motorist’s abilities and can lead to serious crashes, such as head-on collisions. In 2023, 22.3% of all fatal car accidents in Illinois involved alcohol.
This program aims to decrease the number of impaired drivers by raising awareness and encouraging preventive measures, thereby lowering the incidence of car accident fatalities and serious injuries.
If you’ve been in an accident with a drunk driver, contact our drunk driving attorneys immediately to learn about your legal options.
Drop it and Drive
The Drop It and Drive campaign addresses the escalating issue of distracted driving. In collaboration with state legislators and law enforcement agencies, strict laws have been established to ban texting and the use of handheld devices while driving (§625 ILCS 5/12-610.2).
This law aims to curb driving distractions, which were responsible for 8% of all fatal accidents in 2022. Distracted drivers can’t react as quickly and therefore can cause many deadly crashes. For example, they may not notice other vehicles changing lanes and adjust their speed appropriately. They may also not use turn signals and practice improper lane changes, even at high speeds.
While these campaigns have made some strides, continuous effort and public cooperation are crucial for sustained success. Those hurt by distracted driving can seek legal action against the negligent individual by consulting our law firm.

Consult a Motor Vehicle Crash Attorney Near You!

For those who require legal assistance due to a car accident, it is advisable to seek professional counsel. Our Chicago car accident attorneys can provide vital support and help navigate the complexities of accident-related claims, ensuring your rights and interests are protected.
Call Rosenfeld Injury Lawyers at (888) 424-5757 or use our online form to schedule a free consultation about your legal options.
All content undergoes thorough legal review by experienced attorneys, including Jonathan Rosenfeld. With 25 years of experience in personal injury law and over 100 years of combined legal expertise within our team, we ensure that every article is legally accurate, compliant, and reflects current legal standards.