ZIP 80503 (Longmont, CO) truck route planning & crash data
Plan safer truck routes around ZIP 80503: 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 sits below Colorado on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It runs above Colorado on injuries per crash, garbage-truck share and morning rush (6–10 am).
What stands out in ZIP 80503: SR-119 4 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 80503.
Overview
Police reported 563 crashes involving commercial trucks in Boulder County since 2015: 212 people were injured and 24 were killed.
Across the years with complete reporting, that is roughly one truck crash every 8 days.
When crashes happen
June has the most truck crashes, 10.8% of the yearly total, while April has the fewest (5.9%).
The five winter months (November to March) hold 42.9% of truck crashes, against 43.5% across Colorado.
More truck crashes happen at 1–2 pm than at any other hour (11.0%).
10.2% of truck crashes here happened on snow, slush or ice, against 14.8% across Colorado.
Where crashes happen
SR-119 leads within 10 miles of ZIP 80503 with 4 fatal crashes involving a large truck since 2015. Next come US-287 (3), US-36 (3) and Hover St (2).
Garbage & waste trucks
Garbage trucks account for 24 of the truck crashes here, or 4.3%, compared with 2.8% in Colorado.
Their busiest month is August, with 17% of garbage-truck crashes.
They recorded 4.5 deaths per 100 crashes, against 4.5 for all trucks.
Route planning tips for ZIP 80503 fleets
- Review driver schedules for June, the month with the most truck crashes.
- Look at alternatives to SR-119 at busy times: it leads this area in fatal truck crashes.
- For residential and commercial waste routes, look again at August schedules: garbage-truck crashes peak then.
- The morning rush (6–10 am) holds 29.0% of truck crashes here, more than Colorado; adjust start times where you can.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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) |
|---|---|
| SR-119 | 4 |
| US-287 | 3 |
| US-36 | 3 |
| Hover St | 2 |
| SR-66 | 2 |
| Boston Ave | 1 |
| CR-NELSON Rd | 1 |
| E County Line Rd | 1 |
| Mountain View Ave | 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 80503 at a glance
| Population | 35,846 |
| Density | 151 per sq mi |
| Median household income | $113,620 |
| Median home value | $765,620 |
| Home ownership | 66% |
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 |
From the 1990s to the 2020s, yearly reported truck crashes went from 34 to 44. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 4.2 a year in 2016–19 and 1.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 80503
How many truck accidents are there in ZIP 80503?
563 truck crashes have been reported in Boulder County since 2015, with 24 deaths and 212 injuries.
What is the most dangerous road for trucks in ZIP 80503?
SR-119 had 4 fatal crashes involving a large truck within 10 miles of ZIP 80503 since 2015, more than any other road.
What is the worst month for truck crashes in ZIP 80503?
Truck crashes in Boulder County peak in June, with 10.8% of the year's crashes.
Are garbage truck crashes common in ZIP 80503?
Garbage trucks were involved in 24 reported crashes in Boulder County since 2015 (4.3% of truck crashes).
What is the truck crash rate in ZIP 80503 compared with Colorado?
The yearly rate is 14.6 truck crashes per 100,000 residents in Boulder County, vs 32.6 for Colorado.
What is the best way to plan truck routes in ZIP 80503?
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.