ZIP 51246 (Rock Rapids, IA) truck route planning & crash data
Plan safer truck routes around ZIP 51246: commercial truck and garbage truck crashes here and in Lyon 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
0 of 147 truck crashes since 2015.
Deadliest roads
How Lyon County compares with Iowa
Lyon County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Lyon County stands out
Full comparison
| Measure (2015–2025) | Lyon County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 98.4 | 68.1 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 4.5 | 3.5 | 3.4 | 1.3× the state |
| Injuries per crash | 0.59 | 0.41 | 0.49 | 1.4× the state |
| Garbage-truck share | 0.0% | 2.2% | 2.3% | 100% below the state |
| On snow, slush or ice | 22.4% | 18.7% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 24.6% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 13.4% | 15.1% | 13.8% | 11% below the state |
| Winter months (Nov–Mar) | 47.0% | 45.4% | 41.9% | same |
| After dark | 11.9% | 23.1% | 24.8% | 48% below the state |
Lyon County has lower values than Iowa for garbage-truck share, in rain, sleet or snow and after dark. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for Lyon County: 0 garbage-truck share of crashes is 0.0%, against 2.2% for Iowa.
Overview
Lyon County has recorded 147 truck crashes since 2015, with 83 people injured and 7 killed.
Across the years with complete reporting, that is roughly one truck crash every 30 days.
When crashes happen
The worst month is December with 11.6% of truck crashes; the quietest is April at 2.7%.
Winter months (Nov–Mar) carry 47.0% of truck crashes, vs 45.4% for Iowa.
By time of day, 8–9 am stands out with 10.9% of truck crashes.
22.4% of truck crashes here happened on snow, slush or ice, against 18.7% across Iowa.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 51246 happened on CR-A22/180TH St (1), SR-9 (1) and US-75 (1); no road leads clearly.
Garbage & waste trucks
Since 2015, no garbage-truck crashes were reported for Lyon County.
Route planning tips for ZIP 51246 fleets
- Plan December schedules with more margin; it is the worst month for truck crashes in Lyon County.
- 22.4% of truck crashes were on snow, slush or ice, above Iowa; plan winter equipment checks before the season.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Lyon County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| CR-A22/180TH St | 1 |
| SR-9 | 1 |
| US-75 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Lyon County) |
|---|---|
| US-75 | 7 |
| State 9/Iowa 9 | 5 |
| Ia 9 | 4 |
| Us 75 And A034/210Th St | 3 |
| State 182/Iowa 182 | 3 |
| Ia 182 | 3 |
| A052/260Th St | 3 |
| 110Th St | 2 |
ZIP 51246 at a glance
| Population | 4,041 |
| Density | 10 per sq mi |
| Median household income | $72,400 |
| Median home value | $248,788 |
| Home ownership | 79% |
Waste facilities and haulers nearby
Historical data: truck crashes in Lyon 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 | 3 | — | 0.1 |
| 2000s | 5 | +72% | 0.2 |
| 2010s | 13 | +143% | 0.6 |
| 2020s | 11 | -16% | 0.4 |
Reported truck crashes averaged 3 a year in the 1990s and 11 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 0.8 a year in 2016–19 and 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 51246
How many truck crashes happen in ZIP 51246?
Since 2015, 147 crashes involving commercial trucks were reported in Lyon County (83 injured, 7 killed).
Which month has the most truck crashes in ZIP 51246?
The worst month is December: 11.6% of truck crashes in Lyon County happen then.
How many garbage truck crashes are there in ZIP 51246?
0 crashes involving garbage or refuse trucks have been reported in Lyon County since 2015, 0.0% of all truck crashes.
What is the truck crash rate in ZIP 51246 compared with Iowa?
The yearly rate is 98.4 truck crashes per 100,000 residents in Lyon County, vs 68.1 for Iowa.
How can I plan a safer truck route in ZIP 51246?
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.