ZIP 80121 (Littleton, CO) truck route planning & crash data
Plan safer truck routes around ZIP 80121: commercial truck and garbage truck crashes here and in Arapahoe 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
5.0 deaths per 100 garbage-truck crashes vs 3.2 for all trucks.
Deadliest roads
How Arapahoe County compares with Colorado
Arapahoe County against Colorado and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Arapahoe County stands out
Full comparison
| Measure (2015–2025) | Arapahoe County | Colorado | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 17.3 | 32.6 | 49.7 | 47% below the state |
| Deaths per 100 crashes | 3.2 | 5.1 | 3.4 | 37% below the state |
| Injuries per crash | 0.29 | 0.32 | 0.49 | 9% below the state |
| Garbage-truck share | 4.7% | 2.8% | 2.3% | 1.7× the state |
| On snow, slush or ice | 10.5% | 14.8% | 6.2% | 29% below the state |
| Morning rush (6–10 am) | 26.2% | 25.7% | 23.7% | same |
| In rain, sleet or snow | 9.8% | 13.2% | 13.8% | 26% below the state |
| Winter months (Nov–Mar) | 38.6% | 43.5% | 41.9% | 11% below the state |
| After dark | 23.3% | 22.4% | 24.8% | same |
Arapahoe County has lower values than Colorado for crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. It runs above Colorado on garbage-truck share.
Arapahoe County at a glance: 1 in 21 garbage-truck share of crashes is 4.7%, against 2.8% for Colorado.
Overview
Arapahoe County has recorded 1,358 truck crashes since 2015, with 403 people injured and 42 killed.
In complete reporting years that works out to about one truck crash every 3 days.
When crashes happen
The worst month is July with 9.7% of truck crashes; the quietest is March at 6.9%.
November through March accounts for 38.6% of truck crashes here, compared with 43.5% in Colorado.
The busiest hour is 1–2 pm, with 8.3% of truck crashes.
Snow, slush or ice was on the road in 10.5% of truck crashes, compared with 14.8% in Colorado.
Where crashes happen
The deadliest road for trucks within 10 miles of ZIP 80121 is I-25, with 4 fatal large-truck crashes since 2015. Next come SR-121 (3), US-85 (3) and E Mississippi Ave (2).
Garbage & waste trucks
63 crashes involved a garbage or refuse truck, a 4.6% share (Colorado: 2.8%).
Their busiest month is February, with 13% of garbage-truck crashes.
They recorded 5.0 deaths per 100 crashes, against 3.2 for all trucks.
Route planning tips for ZIP 80121 fleets
- Build extra time into July routes: it has the most truck crashes here.
- Where you can, review stops along I-25; it has the most fatal large-truck crashes nearby.
- Waste haulers: February is the peak month for garbage-truck crashes in Arapahoe County.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Arapahoe County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-25 | 4 |
| SR-121 | 3 |
| US-85 | 3 |
| E Mississippi Ave | 2 |
| SR-30 | 2 |
| SR-88 | 2 |
| E 14th Ave | 1 |
| E 6th Ave | 1 |
| E Alameda Ave | 1 |
| E County Line Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Arapahoe County) |
|---|---|
| I-25 | 39 |
| I 25 At Mp 198 | 10 |
| I 25 At Mp 196 | 10 |
| I 225 At E Mississippi Ave | 10 |
| E Arapahoe Rd | 10 |
| I70 .90 Miles E Of Mp 312 | 9 |
| E Belleview Ave | 7 |
| E470 At Mp 7 | 6 |
ZIP 80121 at a glance
| Population | 18,029 |
| Density | 965 per sq mi |
| Median household income | $142,056 |
| Median home value | $708,315 |
| Home ownership | 87% |
Waste facilities and haulers nearby
Historical data: truck crashes in Arapahoe 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 | 67 | — | 2.1 |
| 2000s | 113 | +69% | 2.8 |
| 2010s | 105 | -7% | 2.6 |
| 2020s | 119 | +13% | 3.8 |
In the 1990s about 67 truck crashes a year were reported; in the 2020s, about 119. Reporting coverage also changed between these periods. NHTSA counts 3.0 fatal large-truck crashes a year in 2016–19 and 3.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 80121
How common are truck crashes in ZIP 80121?
Since 2015, 1,358 crashes involving commercial trucks were reported in Arapahoe County (403 injured, 42 killed).
Which road has the most fatal truck crashes in ZIP 80121?
I-25 had 4 fatal crashes involving a large truck within 10 miles of ZIP 80121 since 2015, more than any other road.
What is the worst month for truck crashes in ZIP 80121?
July has the most truck crashes in Arapahoe County, 9.7% of the yearly total.
Are garbage truck crashes common in ZIP 80121?
Garbage trucks were involved in 63 reported crashes in Arapahoe County since 2015 (4.6% of truck crashes).
How do truck crashes in ZIP 80121 compare with Colorado?
Arapahoe County records 17.3 truck crashes per 100,000 residents a year, against 32.6 across Colorado.
How do I plan a garbage truck route in ZIP 80121?
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.