ZIP 51109 (Sioux City, IA) truck route planning & crash data
Plan safer truck routes around ZIP 51109: commercial truck and garbage truck crashes here and in Plymouth 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
2 of 357 truck crashes since 2015.
Deadliest roads
How Plymouth County compares with Iowa
Plymouth County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Plymouth County stands out
Full comparison
| Measure (2015–2025) | Plymouth County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 121.1 | 68.1 | 49.7 | 1.8× the state |
| Deaths per 100 crashes | 5.2 | 3.5 | 3.4 | 1.5× the state |
| Injuries per crash | 0.48 | 0.41 | 0.49 | 1.2× the state |
| Garbage-truck share | 0.3% | 2.2% | 2.3% | 87% below the state |
| On snow, slush or ice | 15.1% | 18.7% | 6.2% | 19% below the state |
| Morning rush (6–10 am) | 18.9% | 24.0% | 23.7% | 21% below the state |
| In rain, sleet or snow | 7.0% | 15.1% | 13.8% | 54% below the state |
| Winter months (Nov–Mar) | 41.6% | 45.4% | 41.9% | 8% below the state |
| After dark | 20.3% | 23.1% | 24.8% | 12% below the state |
Compared with Iowa, Plymouth County is lower on garbage-truck share, on snow, slush or ice and morning rush (6–10 am). It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for Plymouth County: 1 in 345 garbage-truck share of crashes is 0.3%, against 2.2% for Iowa.
Overview
Police reported 357 crashes involving commercial trucks in Plymouth County since 2015: 173 people were injured and 18 were killed.
Across the years with complete reporting, that is roughly one truck crash every 12 days.
When crashes happen
Truck crashes peak in October (13.2% of the year) and are lowest in February (5.3%).
Winter months (Nov–Mar) carry 41.6% of truck crashes, vs 45.4% for Iowa.
The busiest hour is 12–1 pm, with 10.4% of truck crashes.
Road surface: 15.1% of truck crashes were on snow, slush or ice (Iowa: 18.7%).
Where crashes happen
The deadliest road for trucks within 10 miles of ZIP 51109 is I-29, with 4 fatal large-truck crashes since 2015. Next come US-75 (3), 18th St (1) and SR-376 (1).
Garbage & waste trucks
2 crashes involved a garbage or refuse truck, a 0.6% share (Iowa: 2.2%).
Route planning tips for ZIP 51109 fleets
- Build extra time into October routes: it has the most truck crashes here.
- Check whether your routes use I-29, the road with the most fatal truck crashes in this area.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Plymouth County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-29 | 4 |
| US-75 | 3 |
| 18th St | 1 |
| SR-376 | 1 |
| US-20 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Plymouth County) |
|---|---|
| US-75 | 20 |
| Ia 12 | 3 |
| Us 75/Floyd Ave | 3 |
| C80 And Us 75 | 3 |
| State 140/Iowa 140 And C044/25 | 3 |
| 260Th St And Us 75 | 3 |
| Main St And Us 0075 / Floyd Av | 3 |
| K42 And Ia 3 | 3 |
ZIP 51109 at a glance
| Population | 3,606 |
| Density | 79 per sq mi |
| Median household income | $79,034 |
| Median home value | $134,453 |
| Home ownership | 87% |
Waste facilities and haulers nearby
Historical data: truck crashes in Plymouth 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 | 22 | — | 0.8 |
| 2000s | 21 | -2% | 1.0 |
| 2010s | 23 | +9% | 0.7 |
| 2020s | 35 | +49% | 1.2 |
Reported truck crashes averaged 22 a year in the 1990s and 35 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 1.2 a year in 2016–19 and 1.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 51109
How many truck crashes happen in ZIP 51109?
357 truck crashes have been reported in Plymouth County since 2015, with 18 deaths and 173 injuries.
Where do fatal truck crashes happen most in ZIP 51109?
NHTSA data shows I-29 with 4 fatal large-truck crashes within 10 miles of ZIP 51109 since 2015, the highest of any road.
When do most truck crashes happen in ZIP 51109?
October has the most truck crashes in Plymouth County, 13.2% of the yearly total.
How many garbage truck accidents happen in ZIP 51109?
2 crashes involving garbage or refuse trucks have been reported in Plymouth County since 2015, 0.6% of all truck crashes.
How do truck crashes in ZIP 51109 compare with Iowa?
Per 100,000 residents, Plymouth County has 121.1 truck crashes a year; Iowa has 68.1.
How do I plan a garbage truck route in ZIP 51109?
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.