Sumner, IA truck route planning & crash data
Plan safer truck routes in Sumner: commercial truck and garbage truck crashes in Sumner and Bremer County, dangerous roads, seasonality and route safety data for fleets. Patterns use Bremer County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
4 of 154 truck crashes since 2015.
Deadliest roads
How Bremer County compares with Iowa
Bremer County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Bremer County stands out
Full comparison
| Measure (2015–2025) | Bremer County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 53.5 | 68.1 | 49.7 | 21% below the state |
| Deaths per 100 crashes | 2.7 | 3.5 | 3.4 | 23% below the state |
| Injuries per crash | 0.40 | 0.41 | 0.49 | same |
| Garbage-truck share | 2.7% | 2.2% | 2.3% | 1.2× the state |
| On snow, slush or ice | 36.2% | 18.7% | 6.2% | 1.9× the state |
| Morning rush (6–10 am) | 22.8% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 21.5% | 15.1% | 13.8% | 1.4× the state |
| Winter months (Nov–Mar) | 54.4% | 45.4% | 41.9% | 1.2× the state |
| After dark | 22.1% | 23.1% | 24.8% | same |
Compared with Iowa, Bremer County is lower on crashes per 100k residents / yr and deaths per 100 crashes. It stands out for higher garbage-truck share, on snow, slush or ice and in rain, sleet or snow.
Bremer County at a glance: January worst month: 19.5% of truck crashes, vs 8.3% in an average month.
Overview
Since 2015, 154 crashes involving commercial trucks have been reported in Bremer County. They injured 61 people and killed 4.
That averages about one truck crash every 27 days in fully reported years.
With 0 truck crashes reported in Sumner since 2015, this page uses Bremer County numbers for its patterns and comparisons.
70% of truck crash reports in Bremer County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
January has the most truck crashes, 19.5% of the yearly total, while July has the fewest (3.9%).
The five winter months (November to March) hold 54.4% of truck crashes, against 45.4% across Iowa.
By time of day, 2–3 pm stands out with 10.4% of truck crashes.
Snow, slush or ice was on the road in 36.2% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
Fatal large-truck crashes within 10 miles of Sumner since 2015 were spread across roads: SR-3 (2), CR-C33/100TH St (1) and SR-93 (1).
Garbage & waste trucks
4 crashes involved a garbage or refuse truck, a 2.6% share (Iowa: 2.2%).
Route planning tips for Sumner fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Bremer County.
- With 36.2% 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 Bremer County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-3 | 2 |
| CR-C33/100TH St | 1 |
| SR-93 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Bremer County) |
|---|---|
| US-218 | 29 |
| US-63 | 14 |
| Ia 116 | 4 |
| Ia 3 | 4 |
| State 116/4Th St Sw | 4 |
| 190Th St | 2 |
| Ia 93 | 2 |
| State 3/Bremer Ave And 1St St | 2 |
Sumner at a glance
| Population | 2,032 |
| Land area | 2.5 sq mi |
| Density | 827 per sq mi |
| Median household income (ZIP 50674) | $72,794 |
| Median home value (ZIP 50674) | $173,187 |
Waste facilities and haulers nearby
Historical data: truck crashes in Bremer 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 | 8 | — | 1.0 |
| 2000s | 12 | +41% | 0.6 |
| 2010s | 13 | +8% | 0.3 |
| 2020s | 14 | +15% | 0.4 |
Reported truck crashes averaged 8 a year in the 1990s and 14 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 0.0 a year in 2016–19, 0.4 a year in 2020–24.
Nearby places
Questions fleets ask about Sumner
How many truck crashes happen in Sumner?
Bremer County has had 154 reported truck crashes since 2015, injuring 61 people and killing 4.
When do most truck crashes happen in Sumner?
Truck crashes in Bremer County peak in January, with 19.5% of the year's crashes.
Are garbage truck crashes common in Sumner?
4 crashes involving garbage or refuse trucks have been reported in Bremer County since 2015, 2.6% of all truck crashes.
How do truck crashes in Sumner compare with Iowa?
Bremer County records 53.5 truck crashes per 100,000 residents a year, against 68.1 across Iowa.
What is the best way to plan truck routes in Sumner?
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.