ZIP 57631 (Glenham, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57631: commercial truck and garbage truck crashes here and in Walworth 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 27 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Walworth County compares with South Dakota
Walworth County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Walworth County stands out
Full comparison
| Measure (2015–2025) | Walworth County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 43.1 | 42.0 | 49.7 | same |
| Deaths per 100 crashes | 12.0 | 5.2 | 3.4 | 2.3× the state |
| Injuries per crash | 0.04 | 0.13 | 0.49 | 69% below the state |
| Garbage-truck share | 4.0% | 1.6% | 2.3% | 2.5× the state |
| On snow, slush or ice | 20.0% | 28.6% | 6.2% | 30% below the state |
| Morning rush (6–10 am) | 24.0% | 22.2% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 0.0% | 17.5% | 13.8% | 100% below the state |
| Winter months (Nov–Mar) | 40.0% | 48.8% | 41.9% | 18% below the state |
| After dark | 16.0% | 22.8% | 24.8% | 30% below the state |
Walworth County has lower values than South Dakota for injuries per crash, on snow, slush or ice and in rain, sleet or snow. Where it is higher: deaths per 100 crashes, garbage-truck share and morning rush (6–10 am).
The headline for Walworth County: 1 in 25 garbage-truck share of crashes is 4.0%, against 1.6% for South Dakota.
Overview
Police reported 27 crashes involving commercial trucks in Walworth County since 2015: 1 people were injured and 3 were killed.
Across the years with complete reporting, that is roughly one truck crash every 161 days.
When crashes happen
March has the most truck crashes, 18.5% of the yearly total, while January has the fewest (0.0%).
The five winter months (November to March) hold 40.0% of truck crashes, against 48.8% across South Dakota.
More truck crashes happen at 3–4 pm than at any other hour (14.8%).
Snow, slush or ice was on the road in 20.0% of truck crashes, compared with 28.6% in South Dakota.
Where crashes happen
Since 2015, no fatal large-truck crashes with a location were recorded within 10 miles of ZIP 57631.
Garbage & waste trucks
Garbage and refuse trucks were involved in 1 crash, 3.7% of the total, against 1.6% across South Dakota.
Route planning tips for ZIP 57631 fleets
- Plan March schedules with more margin; it is the worst month for truck crashes in Walworth County.
- 24.0% of truck crashes happen between 6 and 10 am, above South Dakota; consider earlier or later starts where possible.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Walworth County
By hour of day
Most dangerous roads for trucks
No fatal crashes involving a large truck with a road name were recorded within 10 miles since 2015.
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Walworth County) |
|---|---|
| US-12 | 15 |
| US-83 | 5 |
| Sd Hwy 47 | 2 |
| Ave | 1 |
| Highway | 1 |
| Sd Hwy 144 | 1 |
| Sd Hwy 1804 | 1 |
ZIP 57631 at a glance
| Population | 364 |
| Density | 1 per sq mi |
| Median household income | $56,827 |
| Home ownership | 90% |
Waste facilities and haulers nearby
Historical data: truck crashes in Walworth 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 | 3 | — | 0.0 |
| 2000s | 3 | -12% | 0.4 |
| 2010s | 2 | -17% | 0.3 |
| 2020s | 2 | -7% | 0.2 |
From the 1990s to the 2020s, yearly reported truck crashes went from 3 to 2. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 0.2 a year in 2016–19 and 0.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57631
How many truck accidents are there in ZIP 57631?
Walworth County has had 27 reported truck crashes since 2015, injuring 1 people and killing 3.
Which month has the most truck crashes in ZIP 57631?
March has the most truck crashes in Walworth County, 18.5% of the yearly total.
How many garbage truck accidents happen in ZIP 57631?
Garbage trucks were involved in 1 reported crash in Walworth County since 2015 (3.7% of truck crashes).
What is the truck crash rate in ZIP 57631 compared with South Dakota?
Walworth County records 43.1 truck crashes per 100,000 residents a year, against 42.0 across South Dakota.
How do I plan a garbage truck route in ZIP 57631?
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.