ZIP 80304 (Boulder, CO) truck route planning & crash data
Plan safer truck routes around ZIP 80304: commercial truck and garbage truck crashes here and in Boulder 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
4.5 deaths per 100 garbage-truck crashes vs 4.5 for all trucks.
Deadliest roads
How Boulder County compares with Colorado
Boulder County against Colorado and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Boulder County stands out
Full comparison
| Measure (2015–2025) | Boulder County | Colorado | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 14.6 | 32.6 | 49.7 | 55% below the state |
| Deaths per 100 crashes | 4.5 | 5.1 | 3.4 | 12% below the state |
| Injuries per crash | 0.36 | 0.32 | 0.49 | 1.1× the state |
| Garbage-truck share | 4.1% | 2.8% | 2.3% | 1.5× the state |
| On snow, slush or ice | 10.2% | 14.8% | 6.2% | 31% below the state |
| Morning rush (6–10 am) | 29.0% | 25.7% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 10.0% | 13.2% | 13.8% | 24% below the state |
| Winter months (Nov–Mar) | 42.9% | 43.5% | 41.9% | same |
| After dark | 10.0% | 22.4% | 24.8% | 55% below the state |
Boulder County has lower values than Colorado for crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. Where it is higher: injuries per crash, garbage-truck share and morning rush (6–10 am).
ZIP 80304 at a glance: US-36 2 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 80304.
Overview
Boulder County has recorded 563 truck crashes since 2015, with 212 people injured and 24 killed.
In complete reporting years that works out to about one truck crash every 8 days.
When crashes happen
Truck crashes peak in June (10.8% of the year) and are lowest in April (5.9%).
November through March accounts for 42.9% of truck crashes here, compared with 43.5% in Colorado.
By time of day, 1–2 pm stands out with 11.0% of truck crashes.
Snow, slush or ice was on the road in 10.2% of truck crashes, compared with 14.8% in Colorado.
Where crashes happen
Within this area, US-36 had the most fatal crashes involving a large truck since 2015 (2). It is followed by CR-NELSON Rd (1), CR-SUNSHINE Canyon Dr (1) and SR-119 (1).
Garbage & waste trucks
24 crashes involved a garbage or refuse truck, a 4.3% share (Colorado: 2.8%).
Garbage-truck crashes peak in August (17% of them).
They recorded 4.5 deaths per 100 crashes, against 4.5 for all trucks.
Route planning tips for ZIP 80304 fleets
- Review driver schedules for June, the month with the most truck crashes.
- Look at alternatives to US-36 at busy times: it leads this area in fatal truck crashes.
- Waste haulers: August is the peak month for garbage-truck crashes in Boulder County.
- 29.0% of truck crashes happen between 6 and 10 am, above Colorado; consider earlier or later starts where possible.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Boulder County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-36 | 2 |
| CR-NELSON Rd | 1 |
| CR-SUNSHINE Canyon Dr | 1 |
| SR-119 | 1 |
| SR-7 | 1 |
| SR-93 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Boulder County) |
|---|---|
| Hwy 287 At Mp 306 | 4 |
| Hwy 66 At Mp 37 | 4 |
| Ken Pratt Blvd At Bowen St | 3 |
| Hwy 66 At Mp 38 | 3 |
| Hwy 52 At Mp 6 | 3 |
| Hwy 36 At Mp 44 | 3 |
| Hwy 36 At Mp 42 | 3 |
| Hwy 36 At Mp 40 | 3 |
ZIP 80304 at a glance
| Population | 25,383 |
| Density | 1,086 per sq mi |
| Median household income | $126,558 |
| Median home value | $1,211,308 |
| Home ownership | 70% |
Waste facilities and haulers nearby
Historical data: truck crashes in Boulder 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 | 34 | — | 1.4 |
| 2000s | 46 | +36% | 1.9 |
| 2010s | 50 | +8% | 2.6 |
| 2020s | 44 | -13% | 1.4 |
Reported truck crashes averaged 34 a year in the 1990s and 44 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 4.2 a year in 2016–19, 1.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 80304
How many truck accidents are there in ZIP 80304?
Boulder County has had 563 reported truck crashes since 2015, injuring 212 people and killing 24.
Which road has the most fatal truck crashes in ZIP 80304?
US-36 had 2 fatal crashes involving a large truck within 10 miles of ZIP 80304 since 2015, more than any other road.
When do most truck crashes happen in ZIP 80304?
The worst month is June: 10.8% of truck crashes in Boulder County happen then.
How many garbage truck crashes are there in ZIP 80304?
Garbage trucks were involved in 24 reported crashes in Boulder County since 2015 (4.3% of truck crashes).
How do truck crashes in ZIP 80304 compare with Colorado?
Per 100,000 residents, Boulder County has 14.6 truck crashes a year; Colorado has 32.6.
How can I plan a safer truck route in ZIP 80304?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.