Fatal crashes in LaSalle County, Illinois
In 2024, 29 people died in 27 fatal crashes in LaSalle County, Illinois, 16.0% more than in 2023. From 2015 to 2024 the county recorded 171 fatal crashes and 186 deaths, the 11th most of 102 counties in Illinois.
26.8 deaths per 100,000 residents, against 9.3 across Illinois in 2024; 17 against 9 a year over 2015 to 2024. Population 108,390, Census Bureau estimate. All fatal crashes in Illinois.
Deaths in LaSalle County by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 27 | 29 |
| 2023 | 22 | 25 |
| 2022 | 13 | 14 |
| 2021 | 13 | 14 |
| 2020 | 21 | 23 |
| 2019 | 10 | 10 |
| 2018 | 11 | 11 |
| 2017 | 17 | 17 |
| 2016 | 25 | 30 |
| 2015 | 12 | 13 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
The deadliest roads in LaSalle County
State Highway 23 had the most fatal crashes of any numbered road in LaSalle County from 2015 to 2024: 15, with 16 deaths. The 9 roads listed held 53% of all fatal crashes in LaSalle County from 2015 to 2024; 2 are interstates, 3 US routes, 4 state highways. 58% of the county's fatal crashes were on an interstate, US or state route; the other 42% were on county roads and city streets. Routes are listed from 5 fatal crashes.
| Road | Fatal crashes | Deaths | 2022 to 2024 | ||
|---|---|---|---|---|---|
| 1 | State Highway 23 | 15 | 16 | 5 | |
| 2 | I-80 | 12 | 17 | 4 | |
| 3 | State Highway 251 | 11 | 12 | 4 | no page |
| 4 | State Highway 71 | 10 | 10 | 3 | no page |
| 5 | US 6 | 10 | 10 | 3 | |
| 6 | State Highway 18 | 9 | 9 | 3 | no page |
| 7 | I-39 | 8 | 9 | 3 | no page |
| 8 | US 34 | 8 | 9 | 2 | |
| 9 | US 52 | 7 | 8 | 2 | no page |
Ottawa had 7.0% of the county's fatal crashes from 2015 to 2024, 12 of 171.
Cities NHTSA filed, with their fatal crashes from 2015 to 2024: Ottawa 12, Streator 8. The city is not filed for crashes outside a city.
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen in LaSalle County
169 fatal crashes in LaSalle County, Illinois from 2015 to 2024 have a known time, too few for any one weekday and time of day to stand out. The worst hour is 10 am to 11 am; the worst month is June.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 3.0 percent, 5 fatal crashes | 2.4 percent, 4 fatal crashes | 3.0 percent, 5 fatal crashes | 1.8 percent, 3 fatal crashes | 4.7 percent, 8 fatal crashes | 1.8 percent, 3 fatal crashes |
| Mon | 0.0 percent, 0 fatal crashes | 3.0 percent, 5 fatal crashes | 3.6 percent, 6 fatal crashes | 2.4 percent, 4 fatal crashes | 1.8 percent, 3 fatal crashes | 1.8 percent, 3 fatal crashes |
| Tue | 0.6 percent, 1 fatal crash | 1.2 percent, 2 fatal crashes | 2.4 percent, 4 fatal crashes | 2.4 percent, 4 fatal crashes | 3.0 percent, 5 fatal crashes | 1.2 percent, 2 fatal crashes |
| Wed | 0.6 percent, 1 fatal crash | 3.6 percent, 6 fatal crashes | 1.2 percent, 2 fatal crashes | 3.0 percent, 5 fatal crashes | 3.0 percent, 5 fatal crashes | 1.2 percent, 2 fatal crashes |
| Thu | 1.2 percent, 2 fatal crashes | 2.4 percent, 4 fatal crashes | 3.0 percent, 5 fatal crashes | 1.2 percent, 2 fatal crashes | 2.4 percent, 4 fatal crashes | 1.2 percent, 2 fatal crashes |
| Fri | 1.2 percent, 2 fatal crashes | 3.0 percent, 5 fatal crashes | 3.6 percent, 6 fatal crashes | 3.0 percent, 5 fatal crashes | 4.1 percent, 7 fatal crashes | 4.1 percent, 7 fatal crashes |
| Sat | 3.0 percent, 5 fatal crashes | 0.6 percent, 1 fatal crash | 4.1 percent, 7 fatal crashes | 4.1 percent, 7 fatal crashes | 2.4 percent, 4 fatal crashes | 3.6 percent, 6 fatal crashes |
By hour
By month
- Jan6.4%
- Feb5.8%
- Mar4.7%
- Apr6.4%
- May8.8%
- Jun14.0%
- Jul11.1%
- Aug13.5%
- Sep8.8%
- Oct9.9%
- Nov9.4%
- Dec1.2%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes in LaSalle County first hit
The first harmful event was a collision with another vehicle in 44%; a fixed object such as a tree, pole or barrier in 33%, a rollover in 8.8%, a pedestrian in 4.7%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 76 | 44% |
| Fixed object (tree, pole, barrier, ditch) | 57 | 33% |
| Rollover | 15 | 8.8% |
| Other | 9 | 5.3% |
| Pedestrian | 8 | 4.7% |
| Parked vehicle | 4 | 2.3% |
| Cyclist | 2 | 1.2% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes in LaSalle County compare with Illinois
The largest difference from Illinois: from 2015 to 2024, 69% of fatal crashes in LaSalle County were on rural roads, against 34% across Illinois. Also above the Illinois share: drinking drivers. Below it: hit-and-runs and pedestrians. Shares of fatal crashes from 2015 to 2024, against the share across all of Illinois. A share is only given over 20 crashes; above or below means more than chance would give on 171 crashes.
| LaSalle | Illinois | ||
|---|---|---|---|
| On rural roads | 69% | 34% | above the Illinois share |
| At or near an intersection | 30% | 30% | about the same as the Illinois share |
| In the dark, road unlit | 28% | 25% | about the same as the Illinois share |
| A drinking driver | 36% | 27% | above the Illinois share |
| Speeding | 39% | 37% | about the same as the Illinois share |
| A distracted driver (as recorded) | 8.2% | 9.8% | about the same as the Illinois share |
| Occupants killed unbelted | 40% | 46% | about the same as the Illinois share |
| Hit-and-run | 3.5% | 8.4% | below the Illinois share |
| A motorcycle involved | 16% | 14% | about the same as the Illinois share |
| Pedestrians among the dead | 5.4% | 16% | below the Illinois share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes in LaSalle County, Illinois
- How many people died in car accidents in LaSalle County in 2024?
- 29 people died in 27 fatal crashes in LaSalle County, Illinois, in 2024, 16.0% more than in 2023. That is 26.8 deaths per 100,000 residents, against 9.3 across Illinois. Source: NHTSA's Fatality Analysis Reporting System (FARS).
- What is the deadliest road in LaSalle County?
- State Highway 23 had the most fatal crashes of any numbered road in LaSalle County from 2015 to 2024: 15, with 16 deaths.
- How many fatal crashes in LaSalle County involved a drinking driver?
- 61 of 171 fatal crashes in LaSalle County from 2015 to 2024 involved a driver NHTSA recorded as drinking, 36%, against 27% across Illinois.
Other counties in Illinois with a page
- Cook County
- Will County
- Lake County
- DuPage County
- St. Clair County
- Madison County
- Kane County
- Winnebago County
- Sangamon County
- McHenry County
- Peoria County
- Kankakee County
All fatal crashes in Illinois, with every county ranked.
Where the LaSalle County numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash NHTSA filed in LaSalle County (county code 99). A fatal crash is one in which someone died within 30 days. The rate per 100,000 uses the Census Bureau's population estimate for the county; it is the only figure here not counted from FARS. Totals from state highway departments and news reports can differ: they count from their own crash reports, often before every death within 30 days is known, while NHTSA's file is checked against death certificates and revised once a year. The full method.
Download every county with a page as CSV. Free to reuse with credit: “Fatal Crash Data, fatalcrashdata.com/fatal-crashes/illinois/lasalle-county/, from NHTSA FARS (2024 Annual Report File).”