ZIP 57661 (Whitehorse, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57661: commercial truck and garbage truck crashes here and in Dewey 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
0 of 12 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
The headline for Dewey County: 12 truck crashes on record for Dewey County since 2015.
Overview
Police reported 12 crashes involving commercial trucks in Dewey County since 2015: 3 people were injured and 3 were killed.
In complete reporting years that works out to about one truck crash every 335 days.
When crashes happen
Monthly patterns need more crashes than Dewey County has on record.
Where crashes happen
NHTSA lists no located fatal large-truck crashes within 10 miles of ZIP 57661 since 2015.
Garbage & waste trucks
No crashes involving garbage or refuse trucks have been reported in Dewey County since 2015.
Route planning tips for ZIP 57661 fleets
- 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 Dewey County
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 (Dewey County) |
|---|---|
| US-212 | 6 |
| Sd Hwy 20 | 2 |
| Sd Hwy 63 | 2 |
| Ave | 1 |
ZIP 57661 at a glance
| Population | 177 |
| Density | 2 per sq mi |
| Median household income | $55,000 |
| Home ownership | 29% |
Waste facilities and haulers nearby
Historical data: truck crashes in Dewey 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 | 1 | — | 0.1 |
| 2000s | 1 | +33% | 0.1 |
| 2010s | 2 | +88% | 0.2 |
| 2020s | 1 | -22% | 0.4 |
In the 1990s about 1 truck crash a year were reported; in the 2020s, about 1. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 0.2 a year in 2016–19 and 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57661
How many truck crashes happen in ZIP 57661?
Since 2015, 12 crashes involving commercial trucks were reported in Dewey County (3 injured, 3 killed).
Are garbage truck crashes common in ZIP 57661?
0 crashes involving garbage or refuse trucks have been reported in Dewey County since 2015, 0.0% of all truck crashes.
What is the best way to plan truck routes in ZIP 57661?
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.