LaSalle County, Illinois: fatal crash statistics

Counties of Illinois by year (CSV)Cite this page

FARS records 29 deaths in 27 fatal crashes in LaSalle County in 2024.

FARS records 186 deaths in 171 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 17.1 deaths for each 100,000 residents in a year.

The rate of Illinois in the same years is 9.0.

By deaths from 2015 to 2024, LaSalle County was number 11 of 102 counties of Illinois.

Deaths in LaSalle County fell by 6.1% between the ten years 2005 to 2014 (198) and the ten years 2015 to 2024 (186).

In the counties of Illinois the deaths rose by 8.4% between the same years.

From 2015 to 2024, 69.0% of the fatal crashes in LaSalle County with a known setting were rural, against 33.6% in Illinois.

To qualify as a FARS case, the crash had to involve a motor vehicle traveling on a trafficway customarily open to the public and must have resulted in the death of a motorist or a non-motorist within 30 days of the crash.
The set of first files, known as the Annual Report File (ARF), is released following the crash year. The ARF is replaced about a year later with a final file, which contains additional cases or updates to cases that had become available after the ARF was released.
NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on 2 Oct 2026.

This page rests on the FARS 2024 annual file. NHTSA released it on 1 Apr 2026. NHTSA can revise the counts in the final file. Release dates

Figure 1.Deaths in LaSalle County by year, 2015 to 2024

Table 1 has the numbers. Go to the table

Since the last update: no figure of this county has a change on record.

Deaths and fatal crashes by year

Table 1.LaSalle County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	29	27	6
2023	25	22	8
2022	14	13	5
2021	14	13	6
2020	23	21	6
2019	10	10	3
2018	11	11	5
2017	17	17	8
2016	30	25	5
2015	13	12	9
2015 to 2024	186	171	61

Each year from 1975

Figure 2.Deaths in LaSalle County by year, 1975 to 2024

Tallest column: 55 (1976)2024: 29

The columns with a stronger shade are the years 2015 to 2024.

Table 2.LaSalle County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	29	27
2023	25	22
2022	14	13
2021	14	13
2020	23	21
2019	10	10
2018	11	11
2017	17	17
2016	30	25
2015	13	12
2014	23	19
2013	11	11
2012	11	10
2011	17	15
2010	13	11
2009	21	18
2008	26	22
2007	32	25
2006	23	21
2005	21	20
2004	29	27
2003	27	21
2002	22	20
2001	20	20
2000	22	21
1999	27	21
1998	25	23
1997	24	22
1996	29	27
1995	22	20
1994	26	23
1993	30	24
1992	11	10
1991	23	21
1990	20	16
1989	28	25
1988	28	26
1987	28	23
1986	26	24
1985	11	10
1984	22	19
1983	25	22
1982	25	22
1981	32	28
1980	34	25
1979	32	27
1978	47	38
1977	35	30
1976	55	40
1975	35	32

Note: a count of 1 or 2 is written "1 or 2". A death is in FARS when it occurs in 30 days or less after the crash.

Rate for each 100,000 residents

Table 3.LaSalle County beside Illinois and the United States: deaths for each 100,000 residents
Period	LaSalle County	Illinois	United States
2024	26.9	9.3	11.5
2015 to 2024, in a year	17.1	9.0	11.8

Note: the rate divides the deaths in the county by its residents. Persons who do not live in the county are in the deaths, not in the residents.

Population: Census Bureau estimates, vintage 2025. LaSalle County had 107,875 residents in 2024.

Factors that NHTSA records

Table 4.LaSalle County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in Illinois
A driver recorded as drinkingof 171 fatal crashes	61	171 fatal crashes	35.7%	27.2%
A speeding-related driverof 171 fatal crashes	67	171 fatal crashes	39.2%	36.5%
No restraint usedof 128 occupant deaths with restraint use known	51	128 occupant deathswith restraint use known	39.8%	46.8%
Pedestriansof 186 deaths	10	186 deaths	5.4%	15.5%
Bicyclistsof 186 deaths	1 or 2	186 deaths	1.1%	2.5%
Motorcyclistsof 186 deaths	28	186 deaths	15.1%	13.3%
On a rural roadof 171 fatal crashes with the condition reported	118	171 fatal crasheswith the condition reported	69.0%	33.6%
In the darkof 168 fatal crashes with the condition reported	61	168 fatal crasheswith the condition reported	36.3%	48.7%

Note: FARS records a driver as drinking when police reported alcohol involvement or a test of the driver was positive for alcohol. It is not NHTSA's alcohol-impaired measure, which uses a blood alcohol concentration of .08 g/dL or higher. One crash can be in two or more rows. NHTSA's definitions

Note that alcohol data is often missing. For that reason, this data element may under-count the actual number of drinking drivers.

NHTSA's words. Source: NHTSA, Fatality Analysis Reporting System Analytical User's Manual, 1975-2024 (DOT HS 813 794, April 2026), copied on 2 Oct 2026.

Weekday, time and road class

Table 5.LaSalle County: fatal crashes by weekday and time of day, 2015 to 2024
Weekday	Midnight to 6 a.m.	6 a.m. to noon	Noon to 6 p.m.	6 p.m. to midnight	All
Sunday	8	6	6	8	28
Monday	1 or 2	10	6	4	21
Tuesday	1 or 2	6	7	4	18
Wednesday	3	6	9	3	21
Thursday	3	8	1 or 2	6	19
Friday	3	10	10	9	32
Saturday	5	8	9	8	30
All days	24	54	49	42	169

Note: a cell with a stronger shade has a larger count. The table has the fatal crashes with a known hour and weekday.

Table 6.LaSalle County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in Illinois
Interstate	21	12.3%	14.2%
Other freeways and expressways	0	0.0%	0.7%
Other principal arterial	29	17.0%	29.1%
Minor arterial	44	25.7%	24.5%
Major collector	59	34.5%	17.0%
Minor collector	1 or 2	0.6%	2.0%
Local	17	9.9%	12.5%
Not reported	0	n/a	n/a

Note: the classes are those of the Federal Highway Administration. The shares are of the crashes with a reported class. Road function classes

Light condition and weather

Table 7.LaSalle County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	98
Dark, not lighted	47
Dark, lighted	14
Dawn	6
Dusk	3
Dark, lighting unknown	0
Other or unknown	3

Table 8.LaSalle County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	145
Cloudy	6
Rain	8
Snow, sleet or freezing rain	4
Fog, smog or smoke	1 or 2
Crosswinds or blowing sand/snow	0
Other or not reported	6

Routes in the county

Table 9.Signed routes in LaSalle County that have a page: fatal crashes, 2015 to 2024
Route	Type	In LaSalle	In all of Illinois
Interstate 39	Interstate	9	36
Interstate 80	Interstate	12	133
State Route 23	State highway	15	43
State Route 71	State highway	10	23
State Route 251	State highway	12	46
US Route 6	US highway	10	75
US Route 34	US highway	8	67
US Route 52	US highway	7	42

Note: the table has each route with a page that has a fatal crash in the county, in name order. Local streets and county roads have no page. Their crashes are in the county totals. All routes in Illinois

Adjacent counties

These lists are for navigation. They are in name order.

Figure 3.LaSalle County on the county map of Illinois

Deaths for each 100,000 residents in a year, 2015 to 2024

Fewer than 1016 counties
10 to 14.926 counties
15 to 19.927 counties
20 to 29.928 counties
30 or more5 counties
LaSalle County: 17.1

The limits of the classes are the same for every state. A county with few residents can show a high rate from few deaths. A class is not a judgement of a county. The full map and the table of counties of Illinois

Table 10.Counties that share a boundary line with LaSalle County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Bureau County	Illinois	4	84	25.5
DeKalb County	Illinois	9	109	10.6
Grundy County	Illinois	9	88	16.9
Kendall County	Illinois	12	91	6.9
Lee County	Illinois	0	46	13.6
Livingston County	Illinois	8	81	22.7
Marshall County	Illinois	1 or 2	25	21.4
Putnam County	Illinois	1 or 2	14	24.7
Woodford County	Illinois	6	54	14.0

Source of the list: Census Bureau county adjacency file, 2026 edition.

Counties of similar population

These counties of Illinois have a population nearest to that of LaSalle County. The list is for navigation and is in name order. The number is the deaths from 2015 to 2024.

Official channels

NHTSA Fatality and Injury Reporting System Tool (FIRST)NHTSA's query tool for FARS counts.
NHTSA FARS EncyclopediaNHTSA's tables of FARS data.
Illinois Department of TransportationThe highway safety office of Illinois.

These links go to the sites of the agencies. They were checked on 2 Oct 2026.

Cite this page

Fatal Roads. LaSalle County, Illinois: fatal crash statistics. https://fatalroads.com/county/il/lasalle/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to 31 Dec 2024.

The address of this page does not change.

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Source of the figures

Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national files of 1975 to 2024. The factors use the vehicle and person files from 2015. Residents: Census Bureau, Population Estimates Program, vintage 2025. Map: Census Bureau cartographic boundary file, 2021 edition. Data to 31 Dec 2024. The figures are totals. No page of this site is about one crash or one person.

How the figures are made. Data sources and licences. Corrections.

Questions

How many deaths did FARS record in LaSalle in the ten years before 2015?

FARS records 198 deaths in LaSalle County from 2005 to 2014. It records 186 deaths from 2015 to 2024.

What was the rate of LaSalle in 2024?

The rate of LaSalle County in 2024 was 26.9 deaths for each 100,000 residents. The rate of Illinois was 9.3. The rate of the United States was 11.5.

How many fatal crashes in LaSalle had a driver recorded as drinking?

FARS records a driver as drinking in 61 of 171 fatal crashes from 2015 to 2024. This count is not NHTSA's alcohol-impaired measure. NHTSA says that alcohol data is often missing, so the count may be too low.

How many fatal crashes did FARS record on signed routes in LaSalle?

8 signed routes in the county have a page. FARS records 83 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.