ZIP 50271 (Williams, IA) truck route planning & crash data
Plan safer truck routes around ZIP 50271: commercial truck and garbage truck crashes here and in Hamilton 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 405 truck crashes since 2015.
Deadliest roads
How Hamilton County compares with Iowa
Hamilton County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Hamilton County stands out
Full comparison
| Measure (2015–2025) | Hamilton County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 230.1 | 68.1 | 49.7 | 3.4× the state |
| Deaths per 100 crashes | 4.3 | 3.5 | 3.4 | 1.2× the state |
| Injuries per crash | 0.40 | 0.41 | 0.49 | same |
| Garbage-truck share | 0.5% | 2.2% | 2.3% | 76% below the state |
| On snow, slush or ice | 39.1% | 18.7% | 6.2% | 2.1× the state |
| Morning rush (6–10 am) | 26.3% | 24.0% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 27.9% | 15.1% | 13.8% | 1.8× the state |
| Winter months (Nov–Mar) | 60.6% | 45.4% | 41.9% | 1.3× the state |
| After dark | 34.6% | 23.1% | 24.8% | 1.5× the state |
Hamilton County has lower values than Iowa for garbage-truck share. It runs above Iowa on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
The headline for Hamilton County: 39.1% of truck crashes happened on snow, slush or ice, vs 18.7% in Iowa.
Overview
Hamilton County has recorded 405 truck crashes since 2015, with 225 people injured and 16 killed.
In complete reporting years that works out to about one truck crash every 11 days.
When crashes happen
Truck crashes peak in December (18.8% of the year) and are lowest in April (4.0%).
November through March accounts for 60.6% of truck crashes here, compared with 45.4% in Iowa.
By time of day, 3–4 pm stands out with 11.9% of truck crashes.
39.1% of truck crashes here happened on snow, slush or ice, against 18.7% across Iowa.
Where crashes happen
Within this area, US-20 had the most fatal crashes involving a large truck since 2015 (3). After it: CR-D20/190TH St (1), I-35 (1) and SR-359 (1).
Garbage & waste trucks
2 crashes involved a garbage or refuse truck, a 0.5% share (Iowa: 2.2%).
Route planning tips for ZIP 50271 fleets
- Build extra time into December routes: it has the most truck crashes here.
- Where you can, review stops along US-20; it has the most fatal large-truck crashes nearby.
- Morning starts matter: 26.3% of truck crashes fall between 6 and 10 am, higher than Iowa.
- With 39.1% 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
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 Hamilton County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-20 | 3 |
| CR-D20/190TH St | 1 |
| I-35 | 1 |
| SR-359 | 1 |
| US-69 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Hamilton County) |
|---|---|
| I-35 | 37 |
| US-20 | 17 |
| Ia 17 | 11 |
| I 35 S, 141.75Mm | 10 |
| Interstate 35/I 35 | 9 |
| Nb Exit Ramp | 7 |
| Ramp 220Th St, E To E To State | 6 |
| Ramp Us 20 W To I 35 N And I 3 | 4 |
ZIP 50271 at a glance
| Population | 581 |
| Density | 3 per sq mi |
| Median household income | $82,656 |
| Median home value | $147,463 |
| Home ownership | 81% |
Waste facilities and haulers nearby
Historical data: truck crashes in Hamilton 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 | — | 0.7 |
| 2000s | 21 | +80% | 0.6 |
| 2010s | 24 | +12% | 0.4 |
| 2020s | 42 | +77% | 1.2 |
In the 1990s about 12 truck crashes a year were reported; in the 2020s, about 42. Reporting coverage also changed between these periods. NHTSA counts 0.0 fatal large-truck crashes a year in 2016–19 and 1.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 50271
How common are truck crashes in ZIP 50271?
Hamilton County has had 405 reported truck crashes since 2015, injuring 225 people and killing 16.
Where do fatal truck crashes happen most in ZIP 50271?
US-20 had 3 fatal crashes involving a large truck within 10 miles of ZIP 50271 since 2015, more than any other road.
Which month has the most truck crashes in ZIP 50271?
The worst month is December: 18.8% of truck crashes in Hamilton County happen then.
Are garbage truck crashes common in ZIP 50271?
Since 2015, Hamilton County has reported 2 garbage-truck crashes, or 0.5% of its truck crashes.
What is the truck crash rate in ZIP 50271 compared with Iowa?
Hamilton County records 230.1 truck crashes per 100,000 residents a year, against 68.1 across Iowa.
How do I plan a garbage truck route in ZIP 50271?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.