ZIP 80504 (Longmont, CO) truck route planning & crash data
Plan safer truck routes around ZIP 80504: commercial truck and garbage truck crashes here and in Weld County, 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
6.2 deaths per 100 garbage-truck crashes vs 7.7 for all trucks.
Deadliest roads
How Weld County compares with Colorado
Weld County against Colorado and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Weld County stands out
Full comparison
| Measure (2015–2025) | Weld County | Colorado | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 59.3 | 32.6 | 49.7 | 1.8× the state |
| Deaths per 100 crashes | 7.7 | 5.1 | 3.4 | 1.5× the state |
| Injuries per crash | 0.39 | 0.32 | 0.49 | 1.2× the state |
| Garbage-truck share | 2.0% | 2.8% | 2.3% | 28% below the state |
| On snow, slush or ice | 7.4% | 14.8% | 6.2% | 50% below the state |
| Morning rush (6–10 am) | 27.9% | 25.7% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 7.9% | 13.2% | 13.8% | 40% below the state |
| Winter months (Nov–Mar) | 39.1% | 43.5% | 41.9% | 10% below the state |
| After dark | 21.2% | 22.4% | 24.8% | same |
Weld County has lower values than Colorado for garbage-truck share, on snow, slush or ice and in rain, sleet or snow. It runs above Colorado on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
What stands out in ZIP 80504: I-25 9 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 80504.
Overview
Police reported 2,554 crashes involving commercial trucks in Weld County since 2015: 1,008 people were injured and 198 were killed.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
When crashes happen
Truck crashes peak in August (10.2% of the year) and are lowest in April (6.3%).
November through March accounts for 39.1% of truck crashes here, compared with 43.5% in Colorado.
The busiest hour is 7–8 am, with 8.3% of truck crashes.
Snow, slush or ice was on the road in 7.4% of truck crashes, compared with 14.8% in Colorado.
Where crashes happen
Within this area, I-25 had the most fatal crashes involving a large truck since 2015 (9). Next come SR-119 (5), SR-66 (5) and SR-52 (3).
Garbage & waste trucks
Garbage and refuse trucks were involved in 53 crashes, 2.1% of the total, against 2.8% across Colorado.
The most garbage-truck crashes happen in October (17%).
Per 100 crashes, garbage trucks recorded 6.2 deaths compared with 7.7 for all trucks.
Route planning tips for ZIP 80504 fleets
- Build extra time into August routes: it has the most truck crashes here.
- Check whether your routes use I-25, the road with the most fatal truck crashes in this area.
- Waste haulers: October is the peak month for garbage-truck crashes in Weld County.
- 27.9% of truck crashes happen between 6 and 10 am, above Colorado; consider earlier or later starts where possible.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Weld County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-25 | 9 |
| SR-119 | 5 |
| SR-66 | 5 |
| SR-52 | 3 |
| US-287 | 3 |
| Hover St | 2 |
| Aggregate Blvd | 1 |
| Boston Ave | 1 |
| CR-13 | 1 |
| CR-19 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Weld County) |
|---|---|
| I25 At Mp 250 | 13 |
| Hwy 85 At Mp 238 | 13 |
| I 25 At Mp 252 | 11 |
| Hwy 34 At Cr 49 | 10 |
| Hwy 85 At Cr 44 | 9 |
| Hwy 85 At Cr 8 | 9 |
| I 25 At Mp 249 | 9 |
| Hwy 34 At Mp 99 | 8 |
ZIP 80504 at a glance
| Population | 63,451 |
| Density | 259 per sq mi |
| Median household income | $113,643 |
| Median home value | $590,270 |
| Home ownership | 79% |
Waste facilities and haulers nearby
Historical data: truck crashes in Weld 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 | 83 | — | 6.1 |
| 2000s | 140 | +68% | 7.3 |
| 2010s | 200 | +43% | 10.7 |
| 2020s | 215 | +7% | 13.8 |
From the 1990s to the 2020s, yearly reported truck crashes went from 83 to 215. Some of the change may reflect how crashes were reported. NHTSA counts 16.0 fatal large-truck crashes a year in 2016–19 and 13.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 80504
How many truck crashes happen in ZIP 80504?
Weld County has had 2,554 reported truck crashes since 2015, injuring 1,008 people and killing 198.
Which road has the most fatal truck crashes in ZIP 80504?
I-25 had 9 fatal crashes involving a large truck within 10 miles of ZIP 80504 since 2015, more than any other road.
What is the worst month for truck crashes in ZIP 80504?
The worst month is August: 10.2% of truck crashes in Weld County happen then.
How many garbage truck crashes are there in ZIP 80504?
53 crashes involving garbage or refuse trucks have been reported in Weld County since 2015, 2.1% of all truck crashes.
How does ZIP 80504 compare with Colorado for truck crashes?
Per 100,000 residents, Weld County has 59.3 truck crashes a year; Colorado has 32.6.
How can I plan a safer truck route in ZIP 80504?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.