Larimer County, Colorado: fatal crash statistics

Counties of Colorado by year (CSV)Cite this page

FARS records 35 deaths in 29 fatal crashes in Larimer County in 2024.

FARS records 352 deaths in 319 fatal crashes in the county from 2015 to 2024.

From 2015 to 2024 the rate is 9.9 deaths for each 100,000 residents in a year.

The rate of Colorado in the same years is 11.4.

By deaths from 2015 to 2024, Larimer County was number 7 of 64 counties of Colorado.

Deaths in Larimer County rose by 47.9% between the ten years 2005 to 2014 (238) and the ten years 2015 to 2024 (352).

In the counties of Colorado the deaths rose by 29.1% between the same years.

From 2015 to 2024, 30.8% of the fatal crashes in Larimer County with a known setting were rural, against 39.1% in Colorado.

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 Larimer 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.Larimer County: deaths and fatal crashes by year, 2015 to 2024
Year	Deaths	Fatal crashes	Crashes with a driver recorded as drinking
2024	35	29	10
2023	42	35	6
2022	32	30	14
2021	35	29	8
2020	32	32	10
2019	27	24	8
2018	36	34	11
2017	36	35	13
2016	44	41	11
2015	33	30	9
2015 to 2024	352	319	100

Each year from 1975

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

Tallest column: 46 (2003)2024: 35

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

Table 2.Larimer County: deaths and fatal crashes by year, 1975 to 2024
Year	Deaths	Fatal crashes
2024	35	29
2023	42	35
2022	32	30
2021	35	29
2020	32	32
2019	27	24
2018	36	34
2017	36	35
2016	44	41
2015	33	30
2014	24	20
2013	20	19
2012	23	23
2011	22	22
2010	16	15
2009	27	25
2008	26	19
2007	25	25
2006	28	27
2005	27	24
2004	30	24
2003	46	39
2002	34	31
2001	27	26
2000	27	25
1999	29	23
1998	23	21
1997	41	40
1996	37	37
1995	28	25
1994	28	23
1993	31	26
1992	27	23
1991	29	26
1990	27	27
1989	28	26
1988	22	20
1987	26	23
1986	34	31
1985	27	24
1984	37	34
1983	36	30
1982	27	25
1981	36	32
1980	40	36
1979	40	34
1978	34	28
1977	43	37
1976	23	23
1975	20	19

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.Larimer County beside Colorado and the United States: deaths for each 100,000 residents
Period	Larimer County	Colorado	United States
2024	9.4	11.5	11.5
2015 to 2024, in a year	9.9	11.4	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. Larimer County had 374,200 residents in 2024.

Factors that NHTSA records

Table 4.Larimer County: counts by recorded factor, 2015 to 2024
Factor	Count	Counted among	Share	Share in Colorado
A driver recorded as drinkingof 319 fatal crashes	100	319 fatal crashes	31.3%	34.1%
A speeding-related driverof 319 fatal crashes	113	319 fatal crashes	35.4%	35.4%
No restraint usedof 201 occupant deaths with restraint use known	100	201 occupant deathswith restraint use known	49.8%	54.5%
Pedestriansof 352 deaths	36	352 deaths	10.2%	14.1%
Bicyclistsof 352 deaths	12	352 deaths	3.4%	2.5%
Motorcyclistsof 352 deaths	93	352 deaths	26.4%	19.4%
On a rural roadof 318 fatal crashes with the condition reported	98	318 fatal crasheswith the condition reported	30.8%	39.1%
In the darkof 319 fatal crashes with the condition reported	128	319 fatal crasheswith the condition reported	40.1%	45.1%

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.Larimer 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	9	19	7	43
Monday	5	8	9	15	37
Tuesday	1 or 2	8	17	15	42
Wednesday	3	8	18	14	43
Thursday	13	10	12	19	54
Friday	6	11	15	17	49
Saturday	9	11	19	12	51
All days	46	65	109	99	319

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.Larimer County: fatal crashes by road function class, 2015 to 2024
Road function class	Fatal crashes	Share	Share in Colorado
Interstate	44	13.8%	14.9%
Other freeways and expressways	4	1.3%	4.6%
Other principal arterial	86	27.0%	39.3%
Minor arterial	100	31.4%	19.3%
Major collector	48	15.1%	10.2%
Minor collector	8	2.5%	2.8%
Local	28	8.8%	8.9%
Not reported	1 or 2	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.Larimer County: fatal crashes by light condition, 2015 to 2024
Light condition	Fatal crashes
Daylight	177
Dark, not lighted	66
Dark, lighted	62
Dawn	4
Dusk	10
Dark, lighting unknown	0
Other or unknown	0

Table 8.Larimer County: fatal crashes by weather, 2015 to 2024
Weather	Fatal crashes
Clear	145
Cloudy	11
Rain	10
Snow, sleet or freezing rain	9
Fog, smog or smoke	1 or 2
Crosswinds or blowing sand/snow	3
Other or not reported	139

Routes in the county

Table 9.Signed routes in Larimer County that have a page: fatal crashes, 2015 to 2024
Route	Type	In Larimer	In all of Colorado
Interstate 25	Interstate	37	382
State Route 14	State highway	19	48
State Route 392	State highway	3	27
US Route 34	US highway	22	104
US Route 36	US highway	3	56
US Route 287	US highway	56	177

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 Colorado

Adjacent counties

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

Figure 3.Larimer County on the county map of Colorado

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

Fewer than 108 counties
10 to 14.99 counties
15 to 19.917 counties
20 to 29.912 counties
30 or more18 counties
Larimer County: 9.9

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 Colorado

Table 10.Counties that share a boundary line with Larimer County
County	State	Deaths, 2024	Deaths, 2015 to 2024	For each 100,000 residents in a year
Boulder County	Colorado	23	255	7.8
Grand County	Colorado	1 or 2	31	19.8
Jackson County	Colorado	4	21	155.3
Weld County	Colorado	67	569	17.3
Albany County	Wyoming	7	79	20.7
Laramie County	Wyoming	16	138	13.8

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

Counties of similar population

These counties of Colorado have a population nearest to that of Larimer 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.
Colorado Office of Transportation SafetyThe highway safety office of Colorado.

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

Cite this page

Fatal Roads. Larimer County, Colorado: fatal crash statistics. https://fatalroads.com/county/co/larimer/. 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 Larimer in the ten years before 2015?

FARS records 238 deaths in Larimer County from 2005 to 2014. It records 352 deaths from 2015 to 2024.

What was the rate of Larimer in 2024?

The rate of Larimer County in 2024 was 9.4 deaths for each 100,000 residents. The rate of Colorado was 11.5. The rate of the United States was 11.5.

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

FARS records a driver as drinking in 100 of 319 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 Larimer?

6 signed routes in the county have a page. FARS records 140 fatal crashes on them in the county from 2015 to 2024. The table of routes on this page gives the count for each route.