ZIP 50632 (Garwin, IA) truck route planning & crash data
Plan safer truck routes around ZIP 50632: commercial truck and garbage truck crashes here and in Tama 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
1 of 135 truck crashes since 2015.
Deadliest roads
How Tama County compares with Iowa
Tama County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Tama County stands out
Full comparison
| Measure (2015–2025) | Tama County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 69.0 | 68.1 | 49.7 | same |
| Deaths per 100 crashes | 6.3 | 3.5 | 3.4 | 1.8× the state |
| Injuries per crash | 0.41 | 0.41 | 0.49 | same |
| Garbage-truck share | 0.8% | 2.2% | 2.3% | 64% below the state |
| On snow, slush or ice | 15.8% | 18.7% | 6.2% | 16% below the state |
| Morning rush (6–10 am) | 33.9% | 24.0% | 23.7% | 1.4× the state |
| In rain, sleet or snow | 14.2% | 15.1% | 13.8% | same |
| Winter months (Nov–Mar) | 48.0% | 45.4% | 41.9% | same |
| After dark | 20.5% | 23.1% | 24.8% | 11% below the state |
Tama County has lower values than Iowa for garbage-truck share, on snow, slush or ice and after dark. It stands out for higher deaths per 100 crashes and morning rush (6–10 am).
The headline for Tama County: 1 in 127 garbage-truck share of crashes is 0.8%, against 2.2% for Iowa.
Overview
Police reported 135 crashes involving commercial trucks in Tama County since 2015: 54 people were injured and 9 were killed.
That averages about one truck crash every 32 days in fully reported years.
When crashes happen
Truck crashes peak in November (12.6% of the year) and are lowest in May (3.7%).
The five winter months (November to March) hold 48.0% of truck crashes, against 45.4% across Iowa.
More truck crashes happen at 7–8 am than at any other hour (11.1%).
Road surface: 15.8% of truck crashes were on snow, slush or ice (Iowa: 18.7%).
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of ZIP 50632 since 2015: US-30 (2) and Us-Hwy 30 (1). No single road stands out.
Garbage & waste trucks
Garbage and refuse trucks were involved in 1 crash, 0.7% of the total, against 2.2% across Iowa.
Route planning tips for ZIP 50632 fleets
- Review driver schedules for November, the month with the most truck crashes.
- Morning starts matter: 33.9% of truck crashes fall between 6 and 10 am, higher than Iowa.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Tama County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-30 | 2 |
| Us-Hwy 30 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Tama County) |
|---|---|
| US-30 | 27 |
| US-63 | 11 |
| Ia 8 | 3 |
| Highway T47 | 2 |
| Highway V18 And 230Th St And H | 2 |
| New Highway 30 Construction | 2 |
| State 21/Iowa 21 And Us 30 And | 2 |
| T047/Hwy T47 | 2 |
ZIP 50632 at a glance
| Population | 1,201 |
| Density | 11 per sq mi |
| Median household income | $71,667 |
| Median home value | $130,471 |
| Home ownership | 86% |
Waste facilities and haulers nearby
Historical data: truck crashes in Tama 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 | 6 | — | 1.2 |
| 2000s | 7 | +22% | 0.6 |
| 2010s | 9 | +29% | 0.9 |
| 2020s | 13 | +40% | 0.0 |
Reported truck crashes averaged 6 a year in the 1990s and 13 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 1.2 a year in 2016–19, 0.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 50632
How many truck accidents are there in ZIP 50632?
Tama County has had 135 reported truck crashes since 2015, injuring 54 people and killing 9.
When do most truck crashes happen in ZIP 50632?
Truck crashes in Tama County peak in November, with 12.6% of the year's crashes.
How many garbage truck crashes are there in ZIP 50632?
1 crash involving garbage or refuse trucks have been reported in Tama County since 2015, 0.7% of all truck crashes.
What is the truck crash rate in ZIP 50632 compared with Iowa?
Per 100,000 residents, Tama County has 69.0 truck crashes a year; Iowa has 68.1.
What is the best way to plan truck routes in ZIP 50632?
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.