ZIP 57730 (Custer, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57730: commercial truck and garbage truck crashes here and in Custer 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
3 of 61 truck crashes since 2015.
Deadliest roads
How Custer County compares with South Dakota
Custer County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Custer County stands out
Full comparison
| Measure (2015–2025) | Custer County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 57.5 | 42.0 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 6.8 | 5.2 | 3.4 | 1.3× the state |
| Injuries per crash | 0.05 | 0.13 | 0.49 | 62% below the state |
| Garbage-truck share | 5.1% | 1.6% | 2.3% | 3.2× the state |
| On snow, slush or ice | 23.7% | 28.6% | 6.2% | 17% below the state |
| Morning rush (6–10 am) | 22.0% | 22.2% | 23.7% | same |
| In rain, sleet or snow | 13.6% | 17.5% | 13.8% | 23% below the state |
| Winter months (Nov–Mar) | 40.7% | 48.8% | 41.9% | 17% below the state |
| After dark | 18.6% | 22.8% | 24.8% | 18% below the state |
Compared with South Dakota, Custer County is lower on injuries per crash, on snow, slush or ice and in rain, sleet or snow. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and garbage-truck share.
What stands out in Custer County: 1 in 20 of truck crashes here involve garbage trucks: 5.1%, vs 1.6% in South Dakota.
Overview
Since 2015, 61 crashes involving commercial trucks have been reported in Custer County. They injured 3 people and killed 4.
Across the years with complete reporting, that is roughly one truck crash every 68 days.
When crashes happen
June has the most truck crashes, 16.4% of the yearly total, while October has the fewest (3.3%).
Winter months (Nov–Mar) carry 40.7% of truck crashes, vs 48.8% for South Dakota.
By time of day, 1–2 pm stands out with 13.1% of truck crashes.
23.7% of truck crashes here happened on snow, slush or ice, against 28.6% across South Dakota.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of ZIP 57730 since 2015: US-385 (2). No single road stands out.
Garbage & waste trucks
Garbage trucks account for 3 of the truck crashes here, or 4.9%, compared with 1.6% in South Dakota.
Route planning tips for ZIP 57730 fleets
- Plan June schedules with more margin; it is the worst month for truck crashes in Custer County.
- 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 Custer County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-385 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Custer County) |
|---|---|
| Sd Hwy 79 | 38 |
| US-16 | 5 |
| US-385 | 4 |
| 7-11 Rd | 2 |
| Sd Hwy 89 | 2 |
| 2Nd St | 1 |
| Bender Ridge Rd | 1 |
| French Creek Rd | 1 |
ZIP 57730 at a glance
| Population | 5,596 |
| Density | 4 per sq mi |
| Median household income | $83,469 |
| Median home value | $358,464 |
| Home ownership | 80% |
Waste facilities and haulers nearby
Historical data: truck crashes in Custer 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 | 4 | — | 0.4 |
| 2000s | 4 | -4% | 0.1 |
| 2010s | 4 | -12% | 0.2 |
| 2020s | 7 | +85% | 0.6 |
From the 1990s to the 2020s, yearly reported truck crashes went from 4 to 7. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 0.2 a year in 2016–19, 0.6 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57730
How many truck crashes happen in ZIP 57730?
Since 2015, 61 crashes involving commercial trucks were reported in Custer County (3 injured, 4 killed).
When do most truck crashes happen in ZIP 57730?
June has the most truck crashes in Custer County, 16.4% of the yearly total.
How many garbage truck accidents happen in ZIP 57730?
3 crashes involving garbage or refuse trucks have been reported in Custer County since 2015, 4.9% of all truck crashes.
How do truck crashes in ZIP 57730 compare with South Dakota?
Custer County records 57.5 truck crashes per 100,000 residents a year, against 42.0 across South Dakota.
How do I plan a garbage truck route in ZIP 57730?
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.