ZIP 57439 (Ferney, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57439: commercial truck and garbage truck crashes here and in Brown 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
5 of 115 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Brown County compares with South Dakota
Brown County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Brown County stands out
Full comparison
| Measure (2015–2025) | Brown County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 25.7 | 42.0 | 49.7 | 39% below the state |
| Deaths per 100 crashes | 5.7 | 5.2 | 3.4 | 1.1× the state |
| Injuries per crash | 0.13 | 0.13 | 0.49 | same |
| Garbage-truck share | 4.7% | 1.6% | 2.3% | 2.9× the state |
| On snow, slush or ice | 14.1% | 28.6% | 6.2% | 51% below the state |
| Morning rush (6–10 am) | 22.6% | 22.2% | 23.7% | same |
| In rain, sleet or snow | 9.4% | 17.5% | 13.8% | 46% below the state |
| Winter months (Nov–Mar) | 48.1% | 48.8% | 41.9% | same |
| After dark | 15.1% | 22.8% | 24.8% | 34% below the state |
Brown County sits below South Dakota on crashes per 100k residents / yr, on snow, slush or ice and in rain, sleet or snow. It stands out for higher deaths per 100 crashes and garbage-truck share.
What stands out in Brown County: 1 in 21 garbage-truck share of crashes is 4.7%, against 1.6% for South Dakota.
Overview
Since 2015, 115 crashes involving commercial trucks have been reported in Brown County. They injured 14 people and killed 6.
That averages about one truck crash every 38 days in fully reported years.
When crashes happen
Truck crashes peak in October (12.2% of the year) and are lowest in May (4.3%).
The five winter months (November to March) hold 48.1% of truck crashes, against 48.8% across South Dakota.
More truck crashes happen at 4–5 pm than at any other hour (11.3%).
14.1% of truck crashes here happened on snow, slush or ice, against 28.6% across South Dakota.
Where crashes happen
NHTSA lists no located fatal large-truck crashes within 10 miles of ZIP 57439 since 2015.
Garbage & waste trucks
Garbage and refuse trucks were involved in 5 crashes, 4.3% of the total, against 1.6% across South Dakota.
Route planning tips for ZIP 57439 fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Brown County.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Brown 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 (Brown County) |
|---|---|
| US-12 | 46 |
| US-281 | 17 |
| Ave | 12 |
| Sd Hwy 37 | 10 |
| Sd Hwy 10 | 5 |
| 5Th St | 2 |
| 10Th Ave Sw Sw | 1 |
| 412Th Ave. | 1 |
ZIP 57439 at a glance
| Population | 0 |
| Density | 0 per sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in Brown 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 | — | 0.7 |
| 2000s | 9 | +11% | 0.5 |
| 2010s | 11 | +22% | 0.3 |
| 2020s | 10 | -16% | 0.8 |
Reported truck crashes averaged 8 a year in the 1990s and 10 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 0.2 a year in 2016–19 and 0.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57439
How many truck accidents are there in ZIP 57439?
Brown County has had 115 reported truck crashes since 2015, injuring 14 people and killing 6.
What is the worst month for truck crashes in ZIP 57439?
October has the most truck crashes in Brown County, 12.2% of the yearly total.
Are garbage truck crashes common in ZIP 57439?
5 crashes involving garbage or refuse trucks have been reported in Brown County since 2015, 4.3% of all truck crashes.
How does ZIP 57439 compare with South Dakota for truck crashes?
Per 100,000 residents, Brown County has 25.7 truck crashes a year; South Dakota has 42.0.
How can I plan a safer truck route in ZIP 57439?
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.