Larimer County, CO truck route planning & crash data
Plan safer truck routes in Larimer County: commercial truck and garbage truck crashes, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0.0 deaths per 100 garbage-truck crashes vs 5.1 for all trucks.
Deadliest roads
How Larimer County compares with Colorado
Larimer County against Colorado and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Larimer County stands out
Full comparison
| Measure (2015–2025) | Larimer County | Colorado | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 27.4 | 32.6 | 49.7 | 16% below the state |
| Deaths per 100 crashes | 5.1 | 5.1 | 3.4 | same |
| Injuries per crash | 0.36 | 0.32 | 0.49 | 1.1× the state |
| Garbage-truck share | 2.2% | 2.8% | 2.3% | 20% below the state |
| On snow, slush or ice | 9.9% | 14.8% | 6.2% | 33% below the state |
| Morning rush (6–10 am) | 26.2% | 25.7% | 23.7% | same |
| In rain, sleet or snow | 10.5% | 13.2% | 13.8% | 20% below the state |
| Winter months (Nov–Mar) | 38.4% | 43.5% | 41.9% | 12% below the state |
| After dark | 18.7% | 22.4% | 24.8% | 16% below the state |
Compared with Colorado, Larimer County is lower on crashes per 100k residents / yr, garbage-truck share and on snow, slush or ice. It runs above Colorado on injuries per crash.
Larimer County at a glance: I-25 13 fatal truck crashes since 2015, more than any other road in Larimer County.
Overview
Police reported 1,195 crashes involving commercial trucks in Larimer County since 2015: 427 people were injured and 61 were killed.
Across the years with complete reporting, that is roughly one truck crash every 4 days.
When crashes happen
The worst month is July with 10.6% of truck crashes; the quietest is December at 6.4%.
Winter months (Nov–Mar) carry 38.4% of truck crashes, vs 43.5% for Colorado.
By time of day, 1–2 pm stands out with 10.5% of truck crashes.
Snow, slush or ice was on the road in 9.9% of truck crashes, compared with 14.8% in Colorado.
Where crashes happen
The deadliest road for trucks in Larimer County is I-25, with 13 fatal large-truck crashes since 2015. After it: US-287 (10), SR-14 (2) and SR-392 (2).
Garbage & waste trucks
Garbage trucks account for 25 of the truck crashes here, or 2.1%, compared with 2.8% in Colorado.
The most garbage-truck crashes happen in January (20%).
Per 100 crashes, garbage trucks recorded 0.0 deaths compared with 5.1 for all trucks.
Route planning tips for Larimer County fleets
- Build extra time into July routes: it has the most truck crashes here.
- Look at alternatives to I-25 at busy times: it leads this area in fatal truck crashes.
- Garbage-truck crashes here peak in January; review collection routes for that month.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Larimer County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in Larimer County) |
|---|---|
| I-25 | 13 |
| US-287 | 10 |
| SR-14 | 2 |
| SR-392 | 2 |
| US-34 | 2 |
| CR-36 | 1 |
| CR-43 | 1 |
| CR-74E | 1 |
| Colorado Blvd | 1 |
| E 37th St | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Larimer County) |
|---|---|
| E Eisenhower Blvd | 16 |
| I25 At Mp 262 | 11 |
| I 25 At Mp 258 | 8 |
| I 25 At Mp 269 | 8 |
| I25 At Mp 255 | 8 |
| I 25 At Mp 264 | 7 |
| Hwy 287 At Mp 350 | 7 |
| I 25 At Mp 287 | 6 |
Larimer County at a glance
| Population | 374,574 |
| Land area | 2,595.7 sq mi |
| Density | 144 per sq mi |
| Median household income (ZIP average) | $93,201 |
Waste facilities and haulers nearby
Historical data: truck crashes in Larimer County since the 1990s
Combines the FMCSA crash file (all reported truck crashes, real coverage from about 1990) with NHTSA FARS (fatal crashes involving a large truck, 1982–2024).
| Decade | Truck crashes / yr | Change | Fatal crashes / yr (FARS) |
|---|---|---|---|
| 1990s | 54 | — | 3.5 |
| 2000s | 74 | +37% | 2.6 |
| 2010s | 90 | +21% | 3.8 |
| 2020s | 106 | +18% | 2.8 |
From the 1990s to the 2020s, yearly reported truck crashes went from 54 to 106. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 5.8 a year in 2016–19 and 2.8 a year in 2020–24.
Cities, towns & communities in Larimer County
ZIP codes in Larimer County
Nearby counties
Questions fleets ask about Larimer County
How many truck accidents are there in Larimer County?
Since 2015, 1,195 crashes involving commercial trucks were reported in Larimer County (427 injured, 61 killed).
Where do fatal truck crashes happen most in Larimer County?
NHTSA data shows I-25 with 13 fatal large-truck crashes in Larimer County since 2015, the highest of any road.
When do most truck crashes happen in Larimer County?
Truck crashes in Larimer County peak in July, with 10.6% of the year's crashes.
Are garbage truck crashes common in Larimer County?
Garbage trucks were involved in 25 reported crashes in Larimer County since 2015 (2.1% of truck crashes).
How does Larimer County compare with Colorado for truck crashes?
Per 100,000 residents, Larimer County has 27.4 truck crashes a year; Colorado has 32.6.
How can I plan a safer truck route in Larimer County?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.