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Edition: FARS 2024, annual fileNHTSA released it on Release dates

Interstate 25 fatal crashes in Colorado

FARS records 382 fatal crashes with 421 deaths on Interstate 25 in Colorado from 2015 to 2024.

In 2024 it records 41 fatal crashes with 43 deaths on the route.

By fatal crashes from 2015 to 2024, Interstate 25 was number 1 of the 40 routes of Colorado with a page.

Fatal crashes on Interstate 25 rose by 32.2% between the ten years 2005 to 2014 (289) and the ten years 2015 to 2024 (382).

In Colorado they rose by 31.0% between the same years.

From 2015 to 2024, a speeding-related driver was recorded in 29.1% of fatal crashes on Interstate 25 and 35.4% 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 .

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

Figure 1.Fatal crashes on Interstate 25 in Colorado by year, 2015 to 2024

Table 1 has the numbers. Go to the table

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

Fatal crashes by year

Table 1.Interstate 25 in Colorado: fatal crashes and deaths by year, 2000 to 2024
YearFatal crashesDeaths
20244143
20233439
20224654
20214951
20203539
20193033
20184042
20173639
20163946
20153235
20143033
20132732
20122225
20112628
20103436
20092727
20083344
20072627
20063133
20053334
20043544
20035462
20025464
20014854
20005256

Note: the route is the trafficway that FARS records for the crash. The records of routes start in 2000. A count of 1 or 2 is written "1 or 2".

Counties on the route

Table 2.Interstate 25: fatal crashes on the route in each county, 2015 to 2024, in name order
CountyOn the routeOn all roads of the county
Adams County39591
Arapahoe County9464
Broomfield County334
Denver County45581
Douglas County33192
El Paso County95681
Huerfano County1332
Larimer County37319
Las Animas County1326
Pueblo County65266
Weld County30508

Note: the table has the counties where FARS records a fatal crash on the route in these years.

Factors that NHTSA records

Table 3.Interstate 25 in Colorado: counts by recorded factor, 2015 to 2024
FactorCountCounted amongShareShare on all roads of Colorado
A driver recorded as drinkingof 382 fatal crashes126382 fatal crashes34.1%
A speeding-related driverof 382 fatal crashes111382 fatal crashes35.4%
Pedestriansof 421 deaths60421 deaths14.1%
Motorcyclistsof 421 deaths68421 deaths19.4%

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. One crash can be in two 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 .

Time of day

Table 4.Interstate 25 in Colorado: fatal crashes by time of day, 2015 to 2024
Time of dayFatal crashesShareShare on all roads of Colorado
Midnight to 6 a.m.11830.9%17.6%
6 a.m. to noon7018.3%19.4%
Noon to 6 p.m.9424.6%31.1%
6 p.m. to midnight10026.2%31.9%

Note: the table has the fatal crashes with a known hour.

Mile ranges

Table 5.Interstate 25 in Colorado: fatal crashes by range of five miles, 2015 to 2024
MilepointFatal crashes
Mile 100 to 10514
Mile 135 to 14015
Mile 205 to 21015
Mile 210 to 21522
Mile 215 to 22015
Mile 225 to 23015

Note: the table has the six ranges of five miles with the largest counts, in the order of the milepoint. 100 percent of the fatal crashes on the route have a milepoint in FARS. A state can start its milepoints again at a county line.

Routes in the same counties

These routes of Colorado have a fatal crash on record in one or more of the same counties. The list is for navigation. The number is the fatal crashes on the route from 2015 to 2024.

All routes in Colorado

Official channels

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

Cite this page

Fatal Roads. Interstate 25 fatal crashes in Colorado. https://fatalroads.com/route/co/i-25/. Source: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, FARS 2024 annual file. Data to .

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Source of the figures

Counts: National Highway Traffic Safety Administration, Fatality Analysis Reporting System, national files of 2000 to 2024. A route page is built for a signed Interstate, US or state route with 20 or more fatal crashes in a state in ten years. Data to . 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 fatal crashes did FARS record on Interstate 25 in the ten years before 2015?

FARS records 289 fatal crashes on Interstate 25 in Colorado from 2005 to 2014. It records 382 from 2015 to 2024.

What part of the fatal crashes in Colorado was on Interstate 25?

382 of the 6,017 fatal crashes in Colorado from 2015 to 2024 were on Interstate 25. That is 6.3 percent.

How many fatal crashes on Interstate 25 had a driver recorded as drinking?

FARS records a driver as drinking in 126 of 382 fatal crashes from 2015 to 2024. It records a speeding-related driver in 111 of them.

Does this page count the same route number in a different state?

No. This page counts the fatal crashes that FARS records on Interstate 25 in Colorado only. The route in a different state has its own page.