ZIP 51529 (Dunlap, IA) truck route planning & crash data
Plan safer truck routes around ZIP 51529: commercial truck and garbage truck crashes here and in Harrison 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 301 truck crashes since 2015.
Deadliest roads
How Harrison County compares with Iowa
Harrison County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Harrison County stands out
Full comparison
| Measure (2015–2025) | Harrison County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 174.0 | 68.1 | 49.7 | 2.6× the state |
| Deaths per 100 crashes | 3.9 | 3.5 | 3.4 | 1.1× the state |
| Injuries per crash | 0.46 | 0.41 | 0.49 | 1.1× the state |
| Garbage-truck share | 1.1% | 2.2% | 2.3% | 51% below the state |
| On snow, slush or ice | 16.4% | 18.7% | 6.2% | 12% below the state |
| Morning rush (6–10 am) | 23.9% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 13.2% | 15.1% | 13.8% | 13% below the state |
| Winter months (Nov–Mar) | 43.6% | 45.4% | 41.9% | same |
| After dark | 18.2% | 23.1% | 24.8% | 21% below the state |
Harrison County has lower values than Iowa for garbage-truck share, on snow, slush or ice and in rain, sleet or snow. It runs above Iowa on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for Harrison County: 1 in 93 of truck crashes here involve garbage trucks: 1.1%, vs 2.2% in Iowa.
Overview
Harrison County has recorded 301 truck crashes since 2015, with 132 people injured and 11 killed.
That averages about one truck crash every 14 days in fully reported years.
When crashes happen
Truck crashes peak in March (12.3% of the year) and are lowest in December (6.0%).
November through March accounts for 43.6% of truck crashes here, compared with 45.4% in Iowa.
More truck crashes happen at 10–11 am than at any other hour (10.3%).
Snow, slush or ice was on the road in 16.4% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
Fatal large-truck crashes within 10 miles of ZIP 51529 since 2015 were spread across roads: US-30 (1).
Garbage & waste trucks
3 crashes involved a garbage or refuse truck, a 1.0% share (Iowa: 2.2%).
Route planning tips for ZIP 51529 fleets
- Review driver schedules for March, the month with the most truck crashes.
- 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 Harrison County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-30 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Harrison County) |
|---|---|
| US-30 | 24 |
| I-29 | 11 |
| Interstate 29 Northbound Near | 5 |
| Austin Ave | 5 |
| Us 30 And Redwood Ave | 3 |
| L020/Loess Hills Trl Measuring | 3 |
| L020/Loess Hills Trl And Kermi | 3 |
| Ia 127 | 3 |
ZIP 51529 at a glance
| Population | 1,732 |
| Density | 5 per sq mi |
| Median household income | $61,599 |
| Median home value | $152,514 |
| Home ownership | 73% |
Waste facilities and haulers nearby
Historical data: truck crashes in Harrison 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 | 12 | — | 0.5 |
| 2000s | 19 | +56% | 0.8 |
| 2010s | 21 | +13% | 0.7 |
| 2020s | 24 | +14% | 0.8 |
Reported truck crashes averaged 12 a year in the 1990s and 24 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 0.5 a year in 2016–19, 0.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 51529
How many truck crashes happen in ZIP 51529?
Since 2015, 301 crashes involving commercial trucks were reported in Harrison County (132 injured, 11 killed).
What is the worst month for truck crashes in ZIP 51529?
The worst month is March: 12.3% of truck crashes in Harrison County happen then.
How many garbage truck accidents happen in ZIP 51529?
Garbage trucks were involved in 3 reported crashes in Harrison County since 2015 (1.0% of truck crashes).
What is the truck crash rate in ZIP 51529 compared with Iowa?
Harrison County records 174.0 truck crashes per 100,000 residents a year, against 68.1 across Iowa.
How can I plan a safer truck route in ZIP 51529?
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.