ZIP 52040 (Dyersville, IA) truck route planning & crash data
Plan safer truck routes around ZIP 52040: commercial truck and garbage truck crashes here and in Delaware 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
3 of 138 truck crashes since 2015.
Deadliest roads
How Delaware County compares with Iowa
Delaware County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Delaware County stands out
Full comparison
| Measure (2015–2025) | Delaware County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 65.0 | 68.1 | 49.7 | same |
| Deaths per 100 crashes | 4.8 | 3.5 | 3.4 | 1.4× the state |
| Injuries per crash | 0.31 | 0.41 | 0.49 | 24% below the state |
| Garbage-truck share | 1.6% | 2.2% | 2.3% | 27% below the state |
| On snow, slush or ice | 13.5% | 18.7% | 6.2% | 28% below the state |
| Morning rush (6–10 am) | 21.4% | 24.0% | 23.7% | 11% below the state |
| In rain, sleet or snow | 7.9% | 15.1% | 13.8% | 48% below the state |
| Winter months (Nov–Mar) | 42.9% | 45.4% | 41.9% | same |
| After dark | 18.2% | 23.1% | 24.8% | 21% below the state |
Delaware County sits below Iowa on injuries per crash, garbage-truck share and on snow, slush or ice. It runs above Iowa on deaths per 100 crashes.
What stands out in Delaware County: October the month with the most truck crashes: 14.5% of the year's total.
Overview
Since 2015, 138 crashes involving commercial trucks have been reported in Delaware County. They injured 45 people and killed 6.
In complete reporting years that works out to about one truck crash every 32 days.
When crashes happen
Truck crashes peak in October (14.5% of the year) and are lowest in February (5.8%).
November through March accounts for 42.9% of truck crashes here, compared with 45.4% in Iowa.
The busiest hour is 9–10 am, with 13.0% of truck crashes.
13.5% of truck crashes here happened on snow, slush or ice, against 18.7% across Iowa.
Where crashes happen
The deadliest road for trucks within 10 miles of ZIP 52040 is US-20, with 3 fatal large-truck crashes since 2015. After it: CR-D22/210TH St (1) and CR-X49/330TH Ave (1).
Garbage & waste trucks
Garbage trucks account for 3 of the truck crashes here, or 2.2%, compared with 2.2% in Iowa.
Route planning tips for ZIP 52040 fleets
- Review driver schedules for October, the month with the most truck crashes.
- Where you can, review stops along US-20; it has the most fatal large-truck crashes nearby.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Delaware County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-20 | 3 |
| CR-D22/210TH St | 1 |
| CR-X49/330TH Ave | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Delaware County) |
|---|---|
| US-20 | 16 |
| State 13/Iowa 13 | 6 |
| Ia 13 | 3 |
| 210Th St | 3 |
| 180Th Ave | 3 |
| 110Th Ave | 2 |
| 210Th St Measuring 2935 Feet | 2 |
| 260Th Ave And Us 20 West Of Ea | 2 |
ZIP 52040 at a glance
| Population | 5,584 |
| Density | 35 per sq mi |
| Median household income | $84,761 |
| Median home value | $238,302 |
| Home ownership | 83% |
Waste facilities and haulers nearby
Historical data: truck crashes in Delaware 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 | 4 | — | 0.4 |
| 2000s | 7 | +66% | 0.4 |
| 2010s | 11 | +51% | 0.6 |
| 2020s | 11 | +4% | 0.4 |
From the 1990s to the 2020s, yearly reported truck crashes went from 4 to 11. Some of the change may reflect how crashes were reported. NHTSA counts 0.8 fatal large-truck crashes a year in 2016–19 and 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 52040
How many truck crashes happen in ZIP 52040?
Since 2015, 138 crashes involving commercial trucks were reported in Delaware County (45 injured, 6 killed).
Which road has the most fatal truck crashes in ZIP 52040?
Since 2015, US-20 has had the most fatal large-truck crashes within 10 miles of ZIP 52040: 3.
Which month has the most truck crashes in ZIP 52040?
October has the most truck crashes in Delaware County, 14.5% of the yearly total.
Are garbage truck crashes common in ZIP 52040?
Garbage trucks were involved in 3 reported crashes in Delaware County since 2015 (2.2% of truck crashes).
How does ZIP 52040 compare with Iowa for truck crashes?
Per 100,000 residents, Delaware County has 65.0 truck crashes a year; Iowa has 68.1.
How can I plan a safer truck route in ZIP 52040?
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.