ZIP 50112 (Grinnell, IA) truck route planning & crash data
Plan safer truck routes around ZIP 50112: commercial truck and garbage truck crashes here and in Poweshiek 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 421 truck crashes since 2015.
Deadliest roads
How Poweshiek County compares with Iowa
Poweshiek County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Poweshiek County stands out
Full comparison
| Measure (2015–2025) | Poweshiek County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 189.7 | 68.1 | 49.7 | 2.8× the state |
| Deaths per 100 crashes | 6.5 | 3.5 | 3.4 | 1.9× the state |
| Injuries per crash | 0.54 | 0.41 | 0.49 | 1.3× the state |
| Garbage-truck share | 0.5% | 2.2% | 2.3% | 76% below the state |
| On snow, slush or ice | 23.6% | 18.7% | 6.2% | 1.3× the state |
| Morning rush (6–10 am) | 21.6% | 24.0% | 23.7% | 10% below the state |
| In rain, sleet or snow | 24.4% | 15.1% | 13.8% | 1.6× the state |
| Winter months (Nov–Mar) | 49.4% | 45.4% | 41.9% | 1.1× the state |
| After dark | 28.8% | 23.1% | 24.8% | 1.3× the state |
Poweshiek County sits below Iowa on garbage-truck share 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 Poweshiek County: 1 in 192 garbage-truck share of crashes is 0.5%, against 2.2% for Iowa.
Overview
Since 2015, 421 crashes involving commercial trucks have been reported in Poweshiek County. They injured 222 people and killed 27.
That averages about one truck crash every 10 days in fully reported years.
When crashes happen
January has the most truck crashes, 11.2% of the yearly total, while March has the fewest (5.9%).
Winter months (Nov–Mar) carry 49.4% of truck crashes, vs 45.4% for Iowa.
The busiest hour is 12–1 pm, with 7.1% of truck crashes.
Road surface: 23.6% 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 50112 is I-80, with 4 fatal large-truck crashes since 2015. It is followed by SR-146 (2) and US-6 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 2 crashes, 0.5% of the total, against 2.2% across Iowa.
Route planning tips for ZIP 50112 fleets
- Review driver schedules for January, the month with the most truck crashes.
- Look at alternatives to I-80 at busy times: it leads this area in fatal truck crashes.
- With 23.6% of truck crashes on snow, slush or ice (above Iowa), plan winter equipment checks early.
- 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 Poweshiek County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-80 | 4 |
| SR-146 | 2 |
| US-6 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Poweshiek County) |
|---|---|
| I-80 | 34 |
| Interstate 80/I 80 | 20 |
| Ia 146 | 6 |
| US-63 | 5 |
| Sb/Wb Interstate 0080 (Milepos | 4 |
| I 80 Wb 186 Mm | 4 |
| I 80 Wb 187Mm | 4 |
| 204.3Mm Wb I80 | 3 |
ZIP 50112 at a glance
| Population | 11,862 |
| Density | 25 per sq mi |
| Median household income | $67,078 |
| Median home value | $215,510 |
| Home ownership | 69% |
Waste facilities and haulers nearby
Historical data: truck crashes in Poweshiek 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 | 14 | — | 1.1 |
| 2000s | 28 | +97% | 1.0 |
| 2010s | 30 | +7% | 0.9 |
| 2020s | 36 | +18% | 1.6 |
Reported truck crashes averaged 14 a year in the 1990s and 36 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 1.0 a year in 2016–19, 1.6 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 50112
How common are truck crashes in ZIP 50112?
Poweshiek County has had 421 reported truck crashes since 2015, injuring 222 people and killing 27.
Which road has the most fatal truck crashes in ZIP 50112?
Since 2015, I-80 has had the most fatal large-truck crashes within 10 miles of ZIP 50112: 4.
Which month has the most truck crashes in ZIP 50112?
The worst month is January: 11.2% of truck crashes in Poweshiek County happen then.
How many garbage truck crashes are there in ZIP 50112?
Garbage trucks were involved in 2 reported crashes in Poweshiek County since 2015 (0.5% of truck crashes).
What is the truck crash rate in ZIP 50112 compared with Iowa?
The yearly rate is 189.7 truck crashes per 100,000 residents in Poweshiek County, vs 68.1 for Iowa.
What is the best way to plan truck routes in ZIP 50112?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.