ZIP 57445 (Groton, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57445: 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
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. Where it is higher: deaths per 100 crashes and garbage-truck share.
What stands out in Brown County: 1 in 21 crashes involve a garbage truck (5 since 2015), vs 1.6% across South Dakota.
Overview
Brown County has recorded 115 truck crashes since 2015, with 14 people injured and 6 killed.
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%).
November through March accounts for 48.1% of truck crashes here, compared with 48.8% in South Dakota.
The busiest hour is 4–5 pm, with 11.3% of truck crashes.
Road surface: 14.1% of truck crashes were on snow, slush or ice (South Dakota: 28.6%).
Where crashes happen
Fatal large-truck crashes within 10 miles of ZIP 57445 since 2015 were spread across roads: US-12 (1).
Garbage & waste trucks
Garbage trucks account for 5 of the truck crashes here, or 4.3%, compared with 1.6% in South Dakota.
Route planning tips for ZIP 57445 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
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-12 | 1 |
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 57445 at a glance
| Population | 2,072 |
| Density | 3 per sq mi |
| Median household income | $84,948 |
| Median home value | $192,801 |
| Home ownership | 77% |
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. NHTSA counts 0.2 fatal large-truck crashes a year in 2016–19 and 0.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57445
How many truck accidents are there in ZIP 57445?
Brown County has had 115 reported truck crashes since 2015, injuring 14 people and killing 6.
Which month has the most truck crashes in ZIP 57445?
October has the most truck crashes in Brown County, 12.2% of the yearly total.
How many garbage truck accidents happen in ZIP 57445?
Garbage trucks were involved in 5 reported crashes in Brown County since 2015 (4.3% of truck crashes).
How do truck crashes in ZIP 57445 compare with South Dakota?
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 57445?
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.