ZIP 51442 (Denison, IA) truck route planning & crash data
Plan safer truck routes around ZIP 51442: commercial truck and garbage truck crashes here and in Crawford 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 of 169 truck crashes since 2015.
Deadliest roads
How Crawford County compares with Iowa
Crawford County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Crawford County stands out
Full comparison
| Measure (2015–2025) | Crawford County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 88.3 | 68.1 | 49.7 | 1.3× the state |
| Deaths per 100 crashes | 2.5 | 3.5 | 3.4 | 29% below the state |
| Injuries per crash | 0.60 | 0.41 | 0.49 | 1.5× the state |
| Garbage-truck share | 2.5% | 2.2% | 2.3% | 1.2× the state |
| On snow, slush or ice | 17.0% | 18.7% | 6.2% | 9% below the state |
| Morning rush (6–10 am) | 22.6% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 10.7% | 15.1% | 13.8% | 29% below the state |
| Winter months (Nov–Mar) | 49.7% | 45.4% | 41.9% | 1.1× the state |
| After dark | 21.4% | 23.1% | 24.8% | 7% below the state |
Crawford County sits below Iowa on deaths per 100 crashes, on snow, slush or ice and in rain, sleet or snow. Where it is higher: crashes per 100k residents / yr, injuries per crash and garbage-truck share.
The headline for Crawford County: November worst month: 13.0% of truck crashes, vs 8.3% in an average month.
Overview
Crawford County has recorded 169 truck crashes since 2015, with 100 people injured and 6 killed.
That averages about one truck crash every 25 days in fully reported years.
When crashes happen
The worst month is November with 13.0% of truck crashes; the quietest is May at 3.0%.
November through March accounts for 49.7% of truck crashes here, compared with 45.4% in Iowa.
The busiest hour is 4–5 pm, with 9.5% of truck crashes.
Snow, slush or ice was on the road in 17.0% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 51442 happened on US-30 (1) and US-59 (1); no road leads clearly.
Garbage & waste trucks
Garbage trucks account for 4 of the truck crashes here, or 2.4%, compared with 2.2% in Iowa.
Route planning tips for ZIP 51442 fleets
- Plan November schedules with more margin; it is the worst month for truck crashes in Crawford County.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Crawford County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-30 | 1 |
| US-59 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Crawford County) |
|---|---|
| US-59 | 23 |
| US-30 | 21 |
| State 39/Iowa 39 | 6 |
| Ia 39 | 5 |
| State 141/Iowa 141 | 5 |
| Ia 141 | 4 |
| State 39/Iowa 39 And Ave C | 3 |
| E016/D Ave | 3 |
ZIP 51442 at a glance
| Population | 9,692 |
| Density | 23 per sq mi |
| Median household income | $66,767 |
| Median home value | $162,110 |
| Home ownership | 73% |
Waste facilities and haulers nearby
Historical data: truck crashes in Crawford 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 | 5 | — | 0.8 |
| 2000s | 12 | +149% | 1.1 |
| 2010s | 14 | +20% | 0.3 |
| 2020s | 12 | -18% | 0.4 |
In the 1990s about 5 truck crashes a year were reported; in the 2020s, about 12. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 0.2 a year in 2016–19 and 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 51442
How common are truck crashes in ZIP 51442?
Crawford County has had 169 reported truck crashes since 2015, injuring 100 people and killing 6.
Which month has the most truck crashes in ZIP 51442?
November has the most truck crashes in Crawford County, 13.0% of the yearly total.
How many garbage truck crashes are there in ZIP 51442?
Garbage trucks were involved in 4 reported crashes in Crawford County since 2015 (2.4% of truck crashes).
How does ZIP 51442 compare with Iowa for truck crashes?
Per 100,000 residents, Crawford County has 88.3 truck crashes a year; Iowa has 68.1.
What is the best way to plan truck routes in ZIP 51442?
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.