Sumpter, WI truck route planning & crash data
Plan safer truck routes in Sumpter: commercial truck and garbage truck crashes in Sumpter and Sauk County, dangerous roads, seasonality and route safety data for fleets. Patterns use Sauk County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
12 of 467 truck crashes since 2015.
Deadliest roads
How Sauk County compares with Wisconsin
Sauk County against Wisconsin and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Sauk County stands out
Full comparison
| Measure (2015–2025) | Sauk County | Wisconsin | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 60.3 | 42.6 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 4.8 | 3.4 | 3.4 | 1.4× the state |
| Injuries per crash | 0.42 | 0.46 | 0.49 | 9% below the state |
| Garbage-truck share | 2.7% | 2.7% | 2.3% | same |
| On snow, slush or ice | 15.4% | 13.4% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 29.2% | 26.9% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 19.3% | 16.5% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 48.1% | 44.9% | 41.9% | 1.1× the state |
| After dark | 25.4% | 20.9% | 24.8% | 1.2× the state |
Sauk County has lower values than Wisconsin for injuries per crash. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
Sauk County at a glance: January the month with the most truck crashes: 13.9% of the year's total.
Overview
Since 2015, 467 crashes involving commercial trucks have been reported in Sauk County. They injured 200 people and killed 23.
That averages about one truck crash every 9 days in fully reported years.
With 6 truck crashes reported in Sumpter since 2015, this page uses Sauk County numbers for its patterns and comparisons.
When crashes happen
The worst month is January with 13.9% of truck crashes; the quietest is April at 6.0%.
Winter months (Nov–Mar) carry 48.1% of truck crashes, vs 44.9% for Wisconsin.
More truck crashes happen at 8–9 am than at any other hour (8.2%).
Snow, slush or ice was on the road in 15.4% of truck crashes, compared with 13.4% in Wisconsin.
Where crashes happen
Fatal large-truck crashes within 10 miles of Sumpter since 2015 were spread across roads: SR-136 (1) and SR-33 (1).
Garbage & waste trucks
12 crashes involved a garbage or refuse truck, a 2.6% share (Wisconsin: 2.7%).
Route planning tips for Sumpter fleets
- Build extra time into January routes: it has the most truck crashes here.
- The morning rush (6–10 am) holds 29.2% of truck crashes here, more than Wisconsin; adjust start times where you can.
- Icy and snowy roads show up in 15.4% of truck crashes here, more than Wisconsin; schedule winter 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 Sauk County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-136 | 1 |
| SR-33 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sauk County) |
|---|---|
| I-090 | 200 |
| Sth 023 | 38 |
| Ush 012 | 21 |
| Sth 033 | 18 |
| Ush 014 | 13 |
| SR-090 | 10 |
| Sth 060 | 9 |
| Sth 136 | 7 |
Sumpter at a glance
| Population | 1,045 |
| Land area | 37.6 sq mi |
| Density | 28 per sq mi |
| Median household income (ZIP 53578) | $105,610 |
| Median home value (ZIP 53578) | $343,656 |
Waste facilities and haulers nearby
Historical data: truck crashes in Sauk 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 | 38 | — | 1.7 |
| 2000s | 50 | +33% | 1.4 |
| 2010s | 39 | -23% | 1.1 |
| 2020s | 42 | +8% | 2.0 |
Reported truck crashes averaged 38 a year in the 1990s and 42 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 1.0 fatal large-truck crashes a year in 2016–19 and 2.0 a year in 2020–24.
Nearby places
Questions fleets ask about Sumpter
How many truck accidents are there in Sumpter?
467 truck crashes have been reported in Sauk County since 2015, with 23 deaths and 200 injuries.
Which month has the most truck crashes in Sumpter?
Truck crashes in Sauk County peak in January, with 13.9% of the year's crashes.
Are garbage truck crashes common in Sumpter?
12 crashes involving garbage or refuse trucks have been reported in Sauk County since 2015, 2.6% of all truck crashes.
How do truck crashes in Sumpter compare with Wisconsin?
The yearly rate is 60.3 truck crashes per 100,000 residents in Sauk County, vs 42.6 for Wisconsin.
What is the best way to plan truck routes in Sumpter?
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.