Calmar, IA truck route planning & crash data
Plan safer truck routes in Calmar: commercial truck and garbage truck crashes in Calmar and Winneshiek County, dangerous roads, seasonality and route safety data for fleets. Patterns use Winneshiek County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 128 truck crashes since 2015.
Deadliest roads
How Winneshiek County compares with Iowa
Winneshiek County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Winneshiek County stands out
Full comparison
| Measure (2015–2025) | Winneshiek County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 54.9 | 68.1 | 49.7 | 19% below the state |
| Deaths per 100 crashes | 2.5 | 3.5 | 3.4 | 29% below the state |
| Injuries per crash | 0.42 | 0.41 | 0.49 | same |
| Garbage-truck share | 0.8% | 2.2% | 2.3% | 61% below the state |
| On snow, slush or ice | 22.7% | 18.7% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 18.5% | 24.0% | 23.7% | 23% below the state |
| In rain, sleet or snow | 6.7% | 15.1% | 13.8% | 56% below the state |
| Winter months (Nov–Mar) | 41.2% | 45.4% | 41.9% | 9% below the state |
| After dark | 17.6% | 23.1% | 24.8% | 23% below the state |
Compared with Iowa, Winneshiek County is lower on crashes per 100k residents / yr, deaths per 100 crashes and garbage-truck share. Where it is higher: on snow, slush or ice.
The headline for Winneshiek County: 1 in 119 of truck crashes here involve garbage trucks: 0.8%, vs 2.2% in Iowa.
Overview
Winneshiek County has recorded 128 truck crashes since 2015, with 53 people injured and 3 killed.
In complete reporting years that works out to about one truck crash every 34 days.
Only 2 truck crashes were reported in Calmar since 2015; patterns below come from Winneshiek County as a whole.
51% of truck crash reports in Winneshiek County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
The worst month is June with 12.5% of truck crashes; the quietest is March at 3.9%.
Winter months (Nov–Mar) carry 41.2% of truck crashes, vs 45.4% for Iowa.
More truck crashes happen at 3–4 pm than at any other hour (10.2%).
22.7% 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 Calmar happened on SR-24 (1) and SR-9 (1); no road leads clearly.
Garbage & waste trucks
Garbage trucks account for 1 of the truck crashes here, or 0.8%, compared with 2.2% in Iowa.
Route planning tips for Calmar fleets
- Build extra time into June routes: it has the most truck crashes here.
- 22.7% of truck crashes were on snow, slush or ice, above Iowa; plan winter equipment checks before the season.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Winneshiek County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-24 | 1 |
| SR-9 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Winneshiek County) |
|---|---|
| US-52 | 13 |
| Ia 9 | 13 |
| State 9/Iowa 9 | 5 |
| Ia 24 | 5 |
| Ia 139 | 4 |
| W038/Locust Rd | 3 |
| State 139/Iowa 139 | 3 |
| 110Th St | 2 |
Calmar at a glance
| Population | 1,100 |
| Land area | 1.1 sq mi |
| Density | 980 per sq mi |
| Median household income (ZIP 52132) | $100,559 |
| Median home value (ZIP 52132) | $240,112 |
Waste facilities and haulers nearby
Historical data: truck crashes in Winneshiek 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 | 2 | — | 0.1 |
| 2000s | 8 | +347% | 0.4 |
| 2010s | 10 | +23% | 0.2 |
| 2020s | 12 | +14% | 0.2 |
From the 1990s to the 2020s, yearly reported truck crashes went from 2 to 12. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 0.2 a year in 2016–19, 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about Calmar
How many truck accidents are there in Calmar?
128 truck crashes have been reported in Winneshiek County since 2015, with 3 deaths and 53 injuries.
When do most truck crashes happen in Calmar?
The worst month is June: 12.5% of truck crashes in Winneshiek County happen then.
How many garbage truck accidents happen in Calmar?
Garbage trucks were involved in 1 reported crash in Winneshiek County since 2015 (0.8% of truck crashes).
How do truck crashes in Calmar compare with Iowa?
Per 100,000 residents, Winneshiek County has 54.9 truck crashes a year; Iowa has 68.1.
What is the best way to plan truck routes in Calmar?
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.