ZIP 54421 (Colby, WI) truck route planning & crash data
Plan safer truck routes around ZIP 54421: commercial truck and garbage truck crashes here and in Marathon 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
19 of 755 truck crashes since 2015.
Deadliest roads
How Marathon County compares with Wisconsin
Marathon County against Wisconsin and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Marathon County stands out
Full comparison
| Measure (2015–2025) | Marathon County | Wisconsin | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 46.4 | 42.6 | 49.7 | 1.1× the state |
| Deaths per 100 crashes | 3.8 | 3.4 | 3.4 | 1.1× the state |
| Injuries per crash | 0.38 | 0.46 | 0.49 | 17% below the state |
| Garbage-truck share | 2.5% | 2.7% | 2.3% | 7% below the state |
| On snow, slush or ice | 21.8% | 13.4% | 6.2% | 1.6× the state |
| Morning rush (6–10 am) | 30.0% | 26.9% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 19.9% | 16.5% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 48.9% | 44.9% | 41.9% | 1.1× the state |
| After dark | 20.7% | 20.9% | 24.8% | same |
Marathon County has lower values than Wisconsin for injuries per crash and garbage-truck share. It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
What stands out in Marathon County: 21.8% of truck crashes happened on snow, slush or ice, vs 13.4% in Wisconsin.
Overview
Police reported 755 crashes involving commercial trucks in Marathon County since 2015: 292 people were injured and 27 were killed.
That averages about one truck crash every 6 days in fully reported years.
When crashes happen
The worst month is January with 13.0% of truck crashes; the quietest is April at 6.2%.
Winter months (Nov–Mar) carry 48.9% of truck crashes, vs 44.9% for Wisconsin.
More truck crashes happen at 7–8 am than at any other hour (9.4%).
21.8% of truck crashes here happened on snow, slush or ice, against 13.4% across Wisconsin.
Where crashes happen
SR-29 leads within 10 miles of ZIP 54421 with 2 fatal crashes involving a large truck since 2015. It is followed by CR-A (1), SR-13 (1) and SR-153 (1).
Garbage & waste trucks
Garbage trucks account for 19 of the truck crashes here, or 2.5%, compared with 2.7% in Wisconsin.
Route planning tips for ZIP 54421 fleets
- Build extra time into January routes: it has the most truck crashes here.
- Where you can, review stops along SR-29; it has the most fatal large-truck crashes nearby.
- The morning rush (6–10 am) holds 30.0% of truck crashes here, more than Wisconsin; adjust start times where you can.
- Icy and snowy roads show up in 21.8% of truck crashes here, more than Wisconsin; schedule winter checks early.
- 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 Marathon County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-29 | 2 |
| CR-A | 1 |
| SR-13 | 1 |
| SR-153 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Marathon County) |
|---|---|
| Sth 029 | 182 |
| I-039 | 76 |
| Ush 051 | 57 |
| Sth 097 | 20 |
| Sth 013 | 19 |
| SR-029 | 18 |
| Sth 153 | 13 |
| Cth | 12 |
ZIP 54421 at a glance
| Population | 3,468 |
| Density | 19 per sq mi |
| Median household income | $60,820 |
| Median home value | $196,131 |
| Home ownership | 68% |
Waste facilities and haulers nearby
Historical data: truck crashes in Marathon 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 | 57 | — | 3.0 |
| 2000s | 75 | +33% | 3.0 |
| 2010s | 64 | -15% | 2.1 |
| 2020s | 63 | -2% | 2.0 |
In the 1990s about 57 truck crashes a year were reported; in the 2020s, about 63. Reporting coverage also changed between these periods. NHTSA counts 3.0 fatal large-truck crashes a year in 2016–19 and 2.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 54421
How many truck crashes happen in ZIP 54421?
755 truck crashes have been reported in Marathon County since 2015, with 27 deaths and 292 injuries.
What is the most dangerous road for trucks in ZIP 54421?
SR-29 had 2 fatal crashes involving a large truck within 10 miles of ZIP 54421 since 2015, more than any other road.
When do most truck crashes happen in ZIP 54421?
Truck crashes in Marathon County peak in January, with 13.0% of the year's crashes.
How many garbage truck accidents happen in ZIP 54421?
Garbage trucks were involved in 19 reported crashes in Marathon County since 2015 (2.5% of truck crashes).
What is the truck crash rate in ZIP 54421 compared with Wisconsin?
Per 100,000 residents, Marathon County has 46.4 truck crashes a year; Wisconsin has 42.6.
What is the best way to plan truck routes in ZIP 54421?
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.