ZIP 57571 (Saint Charles, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57571: commercial truck and garbage truck crashes here and in Gregory 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 36 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Gregory County compares with South Dakota
Gregory County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Gregory County stands out
Full comparison
| Measure (2015–2025) | Gregory County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 73.0 | 42.0 | 49.7 | 1.7× the state |
| Deaths per 100 crashes | 3.0 | 5.2 | 3.4 | 42% below the state |
| Injuries per crash | 0.39 | 0.13 | 0.49 | 3.0× the state |
| Garbage-truck share | 0.0% | 1.6% | 2.3% | 100% below the state |
| On snow, slush or ice | 27.3% | 28.6% | 6.2% | same |
| Morning rush (6–10 am) | 33.3% | 22.2% | 23.7% | 1.5× the state |
| In rain, sleet or snow | 15.2% | 17.5% | 13.8% | 14% below the state |
| Winter months (Nov–Mar) | 72.7% | 48.8% | 41.9% | 1.5× the state |
| After dark | 39.4% | 22.8% | 24.8% | 1.7× the state |
Gregory County has lower values than South Dakota for deaths per 100 crashes, garbage-truck share and in rain, sleet or snow. It runs above South Dakota on crashes per 100k residents / yr, injuries per crash and morning rush (6–10 am).
The headline for Gregory County: January worst month: 30.6% of truck crashes, vs 8.3% in an average month.
Overview
Since 2015, 36 crashes involving commercial trucks have been reported in Gregory County. They injured 13 people and killed 1.
In complete reporting years that works out to about one truck crash every 122 days.
When crashes happen
January has the most truck crashes, 30.6% of the yearly total, while April has the fewest (0.0%).
Winter months (Nov–Mar) carry 72.7% of truck crashes, vs 48.8% for South Dakota.
By time of day, 9–10 am stands out with 13.9% of truck crashes.
Snow, slush or ice was on the road in 27.3% 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 57571.
Garbage & waste trucks
Since 2015, no garbage-truck crashes were reported for Gregory County.
Route planning tips for ZIP 57571 fleets
- Build extra time into January routes: it has the most truck crashes here.
- 33.3% 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
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 Gregory 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 (Gregory County) |
|---|---|
| US-18 | 22 |
| Sd Hwy 44 | 8 |
| US-281 | 3 |
| Lucas Rd | 1 |
| Sd Hwy 47 | 1 |
ZIP 57571 at a glance
| Population | 22 |
| Density | 1 per sq mi |
| Home ownership | 92% |
Waste facilities and haulers nearby
Historical data: truck crashes in Gregory 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 | — | 0.2 |
| 2000s | 2 | -5% | 0.4 |
| 2010s | 3 | +53% | 0.2 |
| 2020s | 4 | +26% | 0.0 |
Reported truck crashes averaged 2 a year in the 1990s and 4 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 0.2 fatal large-truck crashes a year in 2016–19 and 0.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57571
How many truck accidents are there in ZIP 57571?
36 truck crashes have been reported in Gregory County since 2015, with 1 deaths and 13 injuries.
When do most truck crashes happen in ZIP 57571?
Truck crashes in Gregory County peak in January, with 30.6% of the year's crashes.
How many garbage truck crashes are there in ZIP 57571?
Since 2015, Gregory County has reported 0 garbage-truck crashes, or 0.0% of its truck crashes.
How does ZIP 57571 compare with South Dakota for truck crashes?
Gregory County records 73.0 truck crashes per 100,000 residents a year, against 42.0 across South Dakota.
What is the best way to plan truck routes in ZIP 57571?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.