ZIP 57779 (Saint Onge, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57779: commercial truck and garbage truck crashes here and in Lawrence 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
3 of 124 truck crashes since 2015.
Deadliest roads
How Lawrence County compares with South Dakota
Lawrence County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Lawrence County stands out
Full comparison
| Measure (2015–2025) | Lawrence County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 37.2 | 42.0 | 49.7 | 11% below the state |
| Deaths per 100 crashes | 5.1 | 5.2 | 3.4 | same |
| Injuries per crash | 0.14 | 0.13 | 0.49 | 1.1× the state |
| Garbage-truck share | 2.5% | 1.6% | 2.3% | 1.6× the state |
| On snow, slush or ice | 33.1% | 28.6% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 16.1% | 22.2% | 23.7% | 28% below the state |
| In rain, sleet or snow | 31.4% | 17.5% | 13.8% | 1.8× the state |
| Winter months (Nov–Mar) | 50.0% | 48.8% | 41.9% | same |
| After dark | 28.0% | 22.8% | 24.8% | 1.2× the state |
Compared with South Dakota, Lawrence County is lower on crashes per 100k residents / yr and morning rush (6–10 am). Where it is higher: injuries per crash, garbage-truck share and on snow, slush or ice.
The headline for Lawrence County: 31.4% in rain, sleet or snow, against 17.5% across South Dakota.
Overview
Police reported 124 crashes involving commercial trucks in Lawrence County since 2015: 19 people were injured and 6 were killed.
In complete reporting years that works out to about one truck crash every 34 days.
When crashes happen
Truck crashes peak in January (11.3% of the year) and are lowest in June (4.0%).
The five winter months (November to March) hold 50.0% of truck crashes, against 48.8% across South Dakota.
By time of day, 11 am–12 pm stands out with 12.1% of truck crashes.
33.1% of truck crashes here happened on snow, slush or ice, against 28.6% across South Dakota.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 57779 happened on SR-34 (2), CR-GOBBLER Rd (1) and US-85 (1); no road leads clearly.
Garbage & waste trucks
3 crashes involved a garbage or refuse truck, a 2.4% share (South Dakota: 1.6%).
Route planning tips for ZIP 57779 fleets
- Build extra time into January routes: it has the most truck crashes here.
- Icy and snowy roads show up in 33.1% of truck crashes here, more than South Dakota; schedule winter checks early.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Lawrence County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-34 | 2 |
| CR-GOBBLER Rd | 1 |
| US-85 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Lawrence County) |
|---|---|
| I-90 | 51 |
| US-85 | 21 |
| Sd Hwy 34 | 20 |
| Us Hwy 14 A | 5 |
| US-14A | 5 |
| 1St Ave | 2 |
| Whitewood Valley Rd | 2 |
| 12Th St | 1 |
ZIP 57779 at a glance
| Population | 347 |
| Density | 3 per sq mi |
| Home ownership | 100% |
Waste facilities and haulers nearby
Historical data: truck crashes in Lawrence 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 | 8 | — | 0.5 |
| 2000s | 8 | +12% | 0.0 |
| 2010s | 10 | +21% | 0.5 |
| 2020s | 12 | +12% | 0.6 |
Reported truck crashes averaged 8 a year in the 1990s and 12 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 0.8 a year in 2016–19, 0.6 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57779
How common are truck crashes in ZIP 57779?
124 truck crashes have been reported in Lawrence County since 2015, with 6 deaths and 19 injuries.
Which month has the most truck crashes in ZIP 57779?
Truck crashes in Lawrence County peak in January, with 11.3% of the year's crashes.
How many garbage truck crashes are there in ZIP 57779?
Since 2015, Lawrence County has reported 3 garbage-truck crashes, or 2.4% of its truck crashes.
What is the truck crash rate in ZIP 57779 compared with South Dakota?
The yearly rate is 37.2 truck crashes per 100,000 residents in Lawrence County, vs 42.0 for South Dakota.
What is the best way to plan truck routes in ZIP 57779?
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.