ZIP 57433 (Columbia, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57433: 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 |
Compared with South Dakota, Brown County is lower 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.
The headline for Brown County: 1 in 21 garbage-truck share of crashes is 4.7%, against 1.6% for South Dakota.
Overview
Police reported 115 crashes involving commercial trucks in Brown County since 2015: 14 people were injured and 6 were killed.
In complete reporting years that works out to about one truck crash every 38 days.
When crashes happen
October has the most truck crashes, 12.2% of the yearly total, while May has the fewest (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
Fatal large-truck crashes within 10 miles of ZIP 57433 since 2015 were spread across roads: CR-123RD St (1).
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 57433 fleets
- Build extra time into October routes: it has the most truck crashes here.
- 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 Brown County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| CR-123RD St | 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 57433 at a glance
| Population | 318 |
| Density | 1 per sq mi |
| Median household income | $50,417 |
| Home ownership | 99% |
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 large-truck crashes: 0.2 a year in 2016–19, 0.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57433
How many truck crashes happen in ZIP 57433?
Since 2015, 115 crashes involving commercial trucks were reported in Brown County (14 injured, 6 killed).
Which month has the most truck crashes in ZIP 57433?
Truck crashes in Brown County peak in October, with 12.2% of the year's crashes.
Are garbage truck crashes common in ZIP 57433?
Garbage trucks were involved in 5 reported crashes in Brown County since 2015 (4.3% of truck crashes).
What is the truck crash rate in ZIP 57433 compared with South Dakota?
Per 100,000 residents, Brown County has 25.7 truck crashes a year; South Dakota has 42.0.
What is the best way to plan truck routes in ZIP 57433?
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.