ZIP 57544 (Kennebec, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57544: 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 sits below South Dakota on 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.
The headline for Lyman County: January worst month: 20.1% of truck crashes, vs 8.3% in an average month.
Overview
Lyman County has recorded 139 truck crashes since 2015, with 25 people injured and 14 killed.
Across the years with complete reporting, that is roughly one truck crash every 31 days.
When crashes happen
January has the most truck crashes, 20.1% of the yearly total, while February has the fewest (3.6%).
The five winter months (November to March) hold 55.7% of truck crashes, against 48.8% across South Dakota.
By time of day, 8–9 am stands out with 7.9% of truck crashes.
40.5% 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 57544 happened on I-90 (2); no road leads clearly.
Garbage & waste trucks
FMCSA lists no garbage-truck crashes in Lyman County since 2015.
Route planning tips for ZIP 57544 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.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 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 57544 at a glance
| Population | 421 |
| Density | 1 per sq mi |
| Median household income | $78,750 |
| Home ownership | 79% |
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 |
Reported truck crashes averaged 7 a year in the 1990s and 14 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 0.5 fatal large-truck crashes a year in 2016–19 and 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57544
How many truck accidents are there in ZIP 57544?
Since 2015, 139 crashes involving commercial trucks were reported in Lyman County (25 injured, 14 killed).
When do most truck crashes happen in ZIP 57544?
Truck crashes in Lyman County peak in January, with 20.1% of the year's crashes.
Are garbage truck crashes common in ZIP 57544?
Garbage trucks were involved in 0 reported crashes in Lyman County since 2015 (0.0% of truck crashes).
How does ZIP 57544 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.
How can I plan a safer truck route in ZIP 57544?
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.