Letcher, SD truck route planning & crash data
Plan safer truck routes in Letcher: commercial truck and garbage truck crashes in Letcher and Sanborn County, dangerous roads, seasonality and route safety data for fleets. Patterns use Sanborn County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 19 truck crashes since 2015.
Deadliest roads
Sanborn County at a glance: 19 truck crashes on record for Sanborn County since 2015.
Overview
Sanborn County has recorded 19 truck crashes since 2015, with 2 people injured and 3 killed.
Across the years with complete reporting, that is roughly one truck crash every 211 days.
Letcher had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Sanborn County numbers.
When crashes happen
There are too few truck crashes in Sanborn County to show a reliable monthly pattern.
Where crashes happen
Fatal large-truck crashes within 10 miles of Letcher since 2015 were spread across roads: 241st St (1) and SR-37 (1).
Garbage & waste trucks
1 crash involved a garbage or refuse truck, a 5.3% share (South Dakota: 1.6%).
Route planning tips for Letcher fleets
- 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 Sanborn County
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| 241st St | 1 |
| SR-37 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sanborn County) |
|---|---|
| Sd Hwy 37 | 8 |
| Sd Hwy 34 | 7 |
| Sd Hwy 224 | 2 |
Letcher at a glance
| Population | 159 |
| Land area | 0.6 sq mi |
| Density | 258 per sq mi |
| Median household income (ZIP 57359) | $106,818 |
| Median home value (ZIP 57359) | $141,781 |
Historical data: truck crashes in Sanborn 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 | — | 0.0 |
| 2000s | 1 | -33% | 0.0 |
| 2010s | 2 | +50% | 0.2 |
| 2020s | 2 | +33% | 0.2 |
In the 1990s about 2 truck crashes a year were reported; in the 2020s, about 2. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 0.2 a year in 2016–19 and 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about Letcher
How many truck accidents are there in Letcher?
19 truck crashes have been reported in Sanborn County since 2015, with 3 deaths and 2 injuries.
How many garbage truck crashes are there in Letcher?
1 crash involving garbage or refuse trucks have been reported in Sanborn County since 2015, 5.3% of all truck crashes.
What is the best way to plan truck routes in Letcher?
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.