ZIP 57650 (Ralph, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57650: commercial truck and garbage truck crashes here and in Harding 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 51 truck crashes since 2015.
Deadliest roads
How Harding County compares with South Dakota
Harding County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Harding County stands out
Full comparison
| Measure (2015–2025) | Harding County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 288.2 | 42.0 | 49.7 | 6.9× the state |
| Deaths per 100 crashes | 7.1 | 5.2 | 3.4 | 1.4× the state |
| Injuries per crash | 0.24 | 0.13 | 0.49 | 1.8× the state |
| Garbage-truck share | 0.0% | 1.6% | 2.3% | 100% below the state |
| On snow, slush or ice | 26.2% | 28.6% | 6.2% | 9% below the state |
| Morning rush (6–10 am) | 30.9% | 22.2% | 23.7% | 1.4× the state |
| In rain, sleet or snow | 21.4% | 17.5% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 38.1% | 48.8% | 41.9% | 22% below the state |
| After dark | 11.9% | 22.8% | 24.8% | 48% below the state |
Compared with South Dakota, Harding County is lower on garbage-truck share, on snow, slush or ice and winter months (nov–mar). Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
Harding County at a glance: 0 crashes involve a garbage truck (0 since 2015), vs 1.6% across South Dakota.
Overview
Police reported 51 crashes involving commercial trucks in Harding County since 2015: 11 people were injured and 3 were killed.
In complete reporting years that works out to about one truck crash every 96 days.
When crashes happen
Truck crashes peak in June (15.7% of the year) and are lowest in December (0.0%).
Winter months (Nov–Mar) carry 38.1% of truck crashes, vs 48.8% for South Dakota.
By time of day, 8–9 am stands out with 13.7% of truck crashes.
Snow, slush or ice was on the road in 26.2% of truck crashes, compared with 28.6% in South Dakota.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of ZIP 57650 since 2015: SR-79 (2). No single road stands out.
Garbage & waste trucks
FMCSA lists no garbage-truck crashes in Harding County since 2015.
Route planning tips for ZIP 57650 fleets
- Review driver schedules for June, the month with the most truck crashes.
- 30.9% of truck crashes happen between 6 and 10 am, above South Dakota; consider earlier or later starts where possible.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Harding County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-79 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Harding County) |
|---|---|
| US-85 | 26 |
| Sd Hwy 79 | 22 |
| Cox Rd | 1 |
| Park Rd | 1 |
| Sd Hwy 20 | 1 |
ZIP 57650 at a glance
| Population | 17 |
| Density | 0 per sq mi |
| Home ownership | 25% |
Historical data: truck crashes in Harding 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 | — | 0.1 |
| 2000s | 2 | -3% | 0.0 |
| 2010s | 6 | +241% | 0.4 |
| 2020s | 3 | -54% | 0.2 |
In the 1990s about 2 truck crashes a year were reported; in the 2020s, about 3. Reporting coverage also changed between these periods. Fatal large-truck crashes: 0.8 a year in 2016–19, 0.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57650
How many truck crashes happen in ZIP 57650?
Harding County has had 51 reported truck crashes since 2015, injuring 11 people and killing 3.
What is the worst month for truck crashes in ZIP 57650?
Truck crashes in Harding County peak in June, with 15.7% of the year's crashes.
Are garbage truck crashes common in ZIP 57650?
Garbage trucks were involved in 0 reported crashes in Harding County since 2015 (0.0% of truck crashes).
How do truck crashes in ZIP 57650 compare with South Dakota?
Harding County records 288.2 truck crashes per 100,000 residents a year, against 42.0 across South Dakota.
How do I plan a garbage truck route in ZIP 57650?
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.