ZIP 57569 (Reliance, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57569: commercial truck and garbage truck crashes here and in Lyman 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 139 truck crashes since 2015.
Deadliest roads
How Lyman County compares with South Dakota
Lyman County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Lyman County stands out
Full comparison
| Measure (2015–2025) | Lyman County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 320.1 | 42.0 | 49.7 | 7.6× the state |
| Deaths per 100 crashes | 5.3 | 5.2 | 3.4 | same |
| Injuries per crash | 0.12 | 0.13 | 0.49 | 8% below the state |
| Garbage-truck share | 0.0% | 1.6% | 2.3% | 100% below the state |
| On snow, slush or ice | 40.5% | 28.6% | 6.2% | 1.4× the state |
| Morning rush (6–10 am) | 19.1% | 22.2% | 23.7% | 14% below the state |
| In rain, sleet or snow | 24.4% | 17.5% | 13.8% | 1.4× the state |
| Winter months (Nov–Mar) | 55.7% | 48.8% | 41.9% | 1.1× the state |
| After dark | 35.1% | 22.8% | 24.8% | 1.5× the state |
Lyman County has lower values than South Dakota for injuries per crash, garbage-truck share and morning rush (6–10 am). Where it is higher: crashes per 100k residents / yr, on snow, slush or ice and in rain, sleet or snow.
Lyman County at a glance: January the month with the most truck crashes: 20.1% of the year's total.
Overview
Police reported 139 crashes involving commercial trucks in Lyman County since 2015: 25 people were injured and 14 were killed.
Across the years with complete reporting, that is roughly one truck crash every 31 days.
When crashes happen
The worst month is January with 20.1% of truck crashes; the quietest is February at 3.6%.
November through March accounts for 55.7% of truck crashes here, compared with 48.8% in South Dakota.
The busiest hour is 8–9 am, with 7.9% of truck crashes.
Snow, slush or ice was on the road in 40.5% of truck crashes, compared with 28.6% in South Dakota.
Where crashes happen
Fatal large-truck crashes within 10 miles of ZIP 57569 since 2015 were spread across roads: I-90 (2).
Garbage & waste trucks
No crashes involving garbage or refuse trucks have been reported in Lyman County since 2015.
Route planning tips for ZIP 57569 fleets
- Build extra time into January routes: it has the most truck crashes here.
- 40.5% of truck crashes were on snow, slush or ice, above South Dakota; plan winter equipment checks before the season.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Lyman County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-90 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Lyman County) |
|---|---|
| I-90 | 89 |
| Sd Hwy 47 | 22 |
| US-83 | 10 |
| Sd Hwy 248 | 3 |
| 0.169 Miles W Of 324 Ave | 2 |
| Ave | 2 |
| Sd Hwy 273 | 2 |
| US-183 | 2 |
ZIP 57569 at a glance
| Population | 497 |
| Density | 0 per sq mi |
| Median household income | $74,722 |
| Median home value | $126,495 |
| Home ownership | 75% |
Historical data: truck crashes in Lyman 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 | 7 | — | 0.4 |
| 2000s | 8 | +19% | 0.2 |
| 2010s | 9 | +18% | 0.3 |
| 2020s | 14 | +47% | 0.4 |
From the 1990s to the 2020s, yearly reported truck crashes went from 7 to 14. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 0.5 a year in 2016–19, 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57569
How many truck accidents are there in ZIP 57569?
139 truck crashes have been reported in Lyman County since 2015, with 14 deaths and 25 injuries.
What is the worst month for truck crashes in ZIP 57569?
January has the most truck crashes in Lyman County, 20.1% of the yearly total.
How many garbage truck accidents happen in ZIP 57569?
0 crashes involving garbage or refuse trucks have been reported in Lyman County since 2015, 0.0% of all truck crashes.
How does ZIP 57569 compare with South Dakota for truck crashes?
Per 100,000 residents, Lyman County has 320.1 truck crashes a year; South Dakota has 42.0.
What is the best way to plan truck routes in ZIP 57569?
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.