NHTSA FARS 2020–2024 · Census population
Most Dangerous Counties in Illinois
Quick answer: Cook County recorded the most road deaths in Illinois from 2020 to 2024 (1,967), while Washington County had the highest death rate, 36.7 per 100,000 residents a year against 9.8 for the state as a whole.
Per 100,000 residents a year · counties with 10,000+ people
Highest death rate
| # | County | Deaths per 100k / year | Deaths 2020–2024 | Population |
|---|---|---|---|---|
| 1 | Washington County | 36.7 | 25 | 13,627 |
| 2 | Iroquois County | 35.5 | 47 | 26,449 |
| 3 | Mason County | 33 | 21 | 12,745 |
| 4 | Pike County | 29 | 21 | 14,469 |
| 5 | Ford County | 28.3 | 19 | 13,406 |
| 6 | Bureau County | 28 | 46 | 32,866 |
| 7 | Lawrence County | 27.9 | 21 | 15,031 |
| 8 | Clark County | 27.5 | 21 | 15,266 |
| 9 | Montgomery County | 27.2 | 38 | 27,942 |
| 10 | Cumberland County | 27.1 | 14 | 10,334 |
| 11 | Bond County | 26.3 | 22 | 16,716 |
| 12 | Fayette County | 25.3 | 27 | 21,315 |
| 13 | Richland County | 24.4 | 19 | 15,598 |
| 14 | Randolph County | 24 | 36 | 30,058 |
| 15 | Wayne County | 23.8 | 19 | 15,972 |
102 counties · click a heading to sort
Every county in Illinois
| County | Deaths | Fatal crashes | Per 100k / yr | Pedestrians | At night | Alcohol | 2020→2024 | Deadliest roads |
|---|---|---|---|---|---|---|---|---|
| Cook County | 1,967 | 1,813 | 7.6 | 27% | 60% | 11% | I-94, I-290, I-57 | |
| Will County | 296 | 266 | 8.4 | 14% | 50% | 25% | I-55, I-80, SR-53 | |
| Lake County | 257 | 240 | 7.2 | 16% | 52% | 33% | US-41, I-94, US-12 | |
| DuPage County | 237 | 225 | 5.1 | 20% | 44% | 25% | I-88, SR-83, I-290 | |
| St. Clair County | 200 | 188 | 15.8 | 23% | 62% | 31% | I-64, SR-161, SR-3 | |
| Kane County | 186 | 168 | 7.2 | 12% | 48% | 31% | SR-25, SR-31, SR-47 | |
| Madison County | 175 | 160 | 13.2 | 13% | 49% | 36% | SR-3, SR-4, SR-111 | |
| Winnebago County | 159 | 152 | 11.2 | 21% | 55% | 32% | US-20, SR-251, SR-2 | |
| Sangamon County | 123 | 119 | 12.6 | 10% | 45% | 30% | SR-4, I-55, SR-29 | |
| McHenry County | 107 | 91 | 6.8 | 7% | 36% | 45% | I-90, US-14, SR-31 | |
| LaSalle County | 105 | 96 | 19.3 | 7% | 32% | 32% | SR-23, I-80, SR-71 | |
| Peoria County | 104 | 95 | 11.6 | 11% | 59% | 28% | SR-29, SR-8, I-74 | |
| Kankakee County | 86 | 79 | 16.1 | 12% | 46% | 29% | SR-17, SR-1, I-57 | |
| Champaign County | 86 | 78 | 8.2 | 13% | 50% | 35% | I-57, US-45, US-150 | |
| McLean County | 78 | 76 | 9.1 | 12% | 36% | 29% | I-55, I-74, US-51 | |
| Macon County | 75 | 69 | 14.7 | 9% | 52% | 29% | SR-121, US-36, SR-105 | |
| Tazewell County | 68 | 63 | 10.4 | 12% | 48% | 37% | I-74, SR-29, SR-8 | |
| DeKalb County | 63 | 59 | 12.5 | 5% | 36% | 29% | SR-23, SR-38, I-88 | |
| Vermilion County | 58 | 51 | 16 | 14% | 41% | 27% | I-74, US-150, SR-49 | |
| Rock Island County | 54 | 50 | 7.6 | 20% | 52% | 32% | I-88, SR-5, SR-84 | |
| Kendall County | 53 | 51 | 7.7 | 17% | 49% | 35% | SR-71, US-30, US-34 | |
| Williamson County | 48 | 44 | 14.4 | 12% | 45% | 18% | SR-148, SR-13, SR-37 | |
| Whiteside County | 48 | 39 | 17.5 | 6% | 33% | 23% | US-30, SR-40, SR-84 | |
| Iroquois County | 47 | 39 | 35.5 | 0% | 41% | 21% | I-57, SR-49, US-45 | |
| Bureau County | 46 | 40 | 28 | 7% | 40% | 32% | I-80, US-34, SR-40 | |
| Grundy County | 45 | 42 | 16.9 | 13% | 38% | 21% | I-80, SR-47, US-6 | |
| Coles County | 44 | 36 | 18.8 | 0% | 33% | 25% | I-57, SR-130, SR-16 | |
| Jefferson County | 43 | 38 | 23.5 | 14% | 32% | 24% | I-57, SR-37, SR-15 | |
| Boone County | 41 | 39 | 15.4 | 10% | 44% | 38% | SR-76, I-90, SR-173 | |
| Ogle County | 40 | 38 | 15.5 | 2% | 34% | 26% | SR-64, SR-2, SR-251 | |
| Jackson County | 40 | 38 | 15.1 | 18% | 61% | 32% | SR-13, US-51, SR-51 | |
| Effingham County | 40 | 34 | 23.2 | 8% | 26% | 12% | US-40, I-70, SR-33 | |
| Adams County | 38 | 32 | 11.7 | 8% | 25% | 28% | SR-104, SR-57, SR-110 | |
| Montgomery County | 38 | 33 | 27.2 | 8% | 27% | 24% | I-55, SR-16, SR-108 | |
| Christian County | 37 | 30 | 22.1 | 3% | 43% | 40% | SR-29, SR-104, SR-48 | |
| Woodford County | 37 | 30 | 19.3 | 8% | 33% | 30% | SR-116, US-24, I-74 | |
| Randolph County | 36 | 34 | 24 | 8% | 32% | 35% | SR-150, SR-3, SR-154 | |
| Clinton County | 33 | 29 | 17.9 | 6% | 31% | 21% | US-50, SR-161, I-64 | |
| Franklin County | 33 | 27 | 17.7 | 9% | 33% | 22% | I-57, SR-37, SR-148 | |
| Livingston County | 33 | 31 | 18.6 | 3% | 39% | 32% | I-55, SR-23, SR-17 | |
| Stephenson County | 31 | 28 | 14.2 | 3% | 54% | 43% | US-20, SR-26, SR-75 | |
| Marion County | 31 | 26 | 16.8 | 3% | 35% | 15% | I-57, SR-37, US-50 | |
| Fulton County | 28 | 28 | 17 | 0% | 36% | 36% | SR-9, US-136, US-24 | |
| Macoupin County | 27 | 27 | 12.2 | 7% | 44% | 30% | SR-159, SR-4, SR-16 | |
| Fayette County | 27 | 22 | 25.3 | 0% | 55% | 45% | US-40, I-70, SR-128 | |
| Knox County | 27 | 26 | 11 | 4% | 46% | 42% | US-34, I-74, US-150 | |
| Morgan County | 26 | 24 | 15.7 | 4% | 62% | 54% | US-36, SR-104, US-67 | |
| Logan County | 26 | 22 | 18.8 | 0% | 36% | 14% | I-55, SR-121, US-136 | |
| Washington County | 25 | 23 | 36.7 | 0% | 48% | 35% | SR-127, US-51, SR-15 | |
| Shelby County | 23 | 19 | 22.2 | 4% | 16% | 21% | US-51, SR-128, SR-16 | |
| Saline County | 22 | 22 | 19 | 0% | 45% | 27% | US-45, SR-34, SR-13 | |
| Bond County | 22 | 20 | 26.3 | 0% | 50% | 45% | I-70, SR-127, SR-140 | |
| Jersey County | 21 | 20 | 19.7 | 5% | 40% | 40% | SR-100, SR-16, US-67 | |
| Lawrence County | 21 | 16 | 27.9 | 0% | 50% | 25% | US-50, SR-1, SR-33 | |
| Monroe County | 21 | 18 | 12 | 10% | 39% | 17% | SR-3, I-255 | |
| Clark County | 21 | 21 | 27.5 | 5% | 52% | 19% | I-70, US-40, SR-1 | |
| Mason County | 21 | 19 | 33 | 0% | 53% | 37% | US-136, SR-97, SR-10 | |
| Pike County | 21 | 17 | 29 | 0% | 24% | 47% | I-72, SR-106, SR-96 | |
| Union County | 20 | 16 | 23.5 | 0% | 56% | 25% | SR-3, SR-127, I-57 | |
| Ford County | 19 | 17 | 28.3 | 0% | 29% | 29% | I-57, SR-115, SR-47 | |
| Richland County | 19 | 16 | 24.4 | 5% | 56% | 12% | US-50, SR-130, SR-250 | |
| Wayne County | 19 | 17 | 23.8 | 0% | 35% | 29% | SR-15, US-45, I-64 | |
| Lee County | 18 | 15 | 10.6 | 6% | 47% | 40% | US-30, SR-2, SR-38 | |
| Piatt County | 17 | 14 | 20.4 | 12% | 50% | 36% | I-72, SR-105, SR-10 | |
| Henry County | 17 | 16 | 7 | 12% | 44% | 6% | SR-78, US-6, I-80 | |
| Douglas County | 17 | 14 | 17.2 | 0% | 43% | 50% | I-57, SR-133, US-36 | |
| Alexander County | 15 | 13 | 61.5 | 13% | 69% | 38% | SR-3, SR-146, SR-127 | |
| Clay County | 15 | 14 | 23 | 13% | 50% | 21% | US-50 | |
| Jo Daviess County | 15 | 13 | 13.7 | 0% | 54% | 46% | US-20, SR-84 | |
| Edgar County | 14 | 12 | 16.9 | 7% | 50% | 8% | SR-133, US-150, US-36 | |
| Schuyler County | 14 | 10 | 41.3 | 0% | 30% | 30% | US-24, SR-103, SR-100 | |
| Crawford County | 14 | 11 | 15.1 | 14% | 36% | 27% | SR-33 | |
| Cumberland County | 14 | 12 | 27.1 | 14% | 33% | 25% | I-57, I-70, SR-121 | |
| Hancock County | 12 | 12 | 13.9 | 0% | 42% | 58% | SR-94, SR-9, US-136 | |
| Johnson County | 11 | 9 | 16.4 | 9% | 56% | 22% | SR-37, I-24, I-57 | |
| White County | 11 | 9 | 16.2 | 9% | 44% | 11% | SR-1, I-64, SR-14 | |
| Warren County | 11 | 9 | 13.4 | 9% | 67% | 33% | US-34, SR-164, SR-135 | |
| Marshall County | 10 | 9 | 17.2 | 0% | 22% | 22% | SR-29, I-39, SR-26 | |
| Moultrie County | 10 | 10 | 13.9 | 20% | 30% | 20% | SR-133, SR-121 | |
| De Witt County | 10 | 9 | 13 | 0% | 22% | 0% | I-74, US-51 | |
| Stark County | 10 | 10 | 37.7 | 0% | 70% | 40% | SR-17, SR-40, SR-78 | |
| Hamilton County | 10 | 7 | 25.3 | 0% | 14% | 29% | SR-142, SR-14, SR-242 | |
| Mercer County | 10 | 8 | 12.9 | 0% | 38% | 38% | US-67, SR-94 | |
| Carroll County | 9 | 8 | 11.6 | 11% | 38% | 25% | SR-84, SR-40, US-32 | |
| McDonough County | 9 | 9 | 6.7 | 11% | 44% | 11% | US-67, US-136 | |
| Jasper County | 9 | 9 | 19.6 | 0% | 44% | 33% | SR-33, SR-130 | |
| Massac County | 8 | 7 | 11.5 | 25% | 29% | 14% | US-45, I-24, SR-145 | |
| Pope County | 8 | 6 | 42.8 | 0% | 33% | 33% | SR-34, SR-145 | |
| Scott County | 7 | 7 | 28.4 | 0% | 43% | 43% | SR-106, SR-100, I-72 | |
| Menard County | 7 | 7 | 11.6 | 0% | 29% | 43% | SR-97 | |
| Gallatin County | 7 | 6 | 29.1 | 0% | 50% | 33% | SR-141, SR-13 | |
| Putnam County | 7 | 6 | 25 | 0% | 33% | 50% | SR-89, SR-18 | |
| Pulaski County | 7 | 7 | 27.9 | 14% | 57% | 29% | I-57, SR-37, US-51 | |
| Greene County | 7 | 7 | 12 | 14% | 43% | 29% | US-67, SR-267, SR-108 | |
| Henderson County | 7 | 6 | 22.6 | 29% | 17% | 33% | US-34 | |
| Perry County | 6 | 6 | 5.8 | 17% | 50% | 17% | SR-13, SR-127, SR-154 | |
| Wabash County | 5 | 5 | 9 | 0% | 0% | 40% | SR-1 | |
| Calhoun County | 3 | 3 | 13.9 | 0% | 33% | 100% | SR-96, SR-100 | |
| Edwards County | 3 | 3 | 9.9 | 0% | 67% | 33% | ||
| Brown County | 3 | 3 | 9.5 | 0% | 33% | 33% | US-24, SR-107 | |
| Hardin County | 2 | 2 | 11.1 | 0% | 0% | 50% | SR-34, SR-1 | |
| Cass County | 2 | 2 | 3.1 | 0% | 50% | 50% |
Deaths = people killed in crashes in the county, 2020–2024. Pedestrians = share of deaths who were on foot. At night = share of fatal crashes in the dark. Alcohol = share of fatal crashes where police reported a driver had been drinking. Rate = yearly average deaths ÷ average population × 100,000. Source: NHTSA FARS, U.S. Census Bureau.
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Questions
Dangerous counties — FAQ
What is the most dangerous county in Illinois for driving?
Cook County recorded the most road deaths in Illinois from 2020 to 2024 (1,967), while Washington County had the highest death rate, 36.7 per 100,000 residents a year against 9.8 for the state as a whole. Big counties lead on counts because more people drive there; the rate shows the risk for each resident.
How many people died on Illinois roads from 2020 to 2024?
6,213 people, according to NHTSA's Fatality Analysis Reporting System, about 1,243 a year.
Where does this ranking come from?
Every fatal crash in NHTSA's FARS census for 2020–2024, placed in the county where it happened, divided by the county's average population from the U.S. Census Bureau. Rates are only ranked for counties with at least 10,000 residents.