Custer County, MT truck route planning & crash data
Plan safer truck routes in Custer County: commercial truck and garbage truck crashes, 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 118 truck crashes since 2015.
Deadliest roads
How Custer County compares with Montana
Custer County against Montana 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 | Montana | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 84.3 | 64.3 | 49.7 | 1.3× the state |
| Deaths per 100 crashes | 0.9 | 3.8 | 3.4 | 76% below the state |
| Injuries per crash | 0.30 | 0.34 | 0.49 | 12% below the state |
| Garbage-truck share | 0.0% | 0.9% | 2.3% | 100% below the state |
| On snow, slush or ice | 29.7% | 39.4% | 6.2% | 25% below the state |
| Morning rush (6–10 am) | 18.0% | 22.9% | 23.7% | 21% below the state |
| In rain, sleet or snow | 18.9% | 20.6% | 13.8% | 8% below the state |
| Winter months (Nov–Mar) | 51.3% | 54.3% | 41.9% | same |
| After dark | 29.7% | 30.8% | 24.8% | same |
Custer County sits below Montana on deaths per 100 crashes, injuries per crash and garbage-truck share. It stands out for higher crashes per 100k residents / yr.
What stands out in Custer County: 0 crashes involve a garbage truck (0 since 2015), vs 0.9% across Montana.
Overview
Custer County has recorded 118 truck crashes since 2015, with 34 people injured and 1 killed.
That averages about one truck crash every 36 days in fully reported years.
When crashes happen
February has the most truck crashes, 13.6% of the yearly total, while September has the fewest (3.4%).
Winter months (Nov–Mar) carry 51.3% of truck crashes, vs 54.3% for Montana.
By time of day, 12–1 pm stands out with 9.3% of truck crashes.
Road surface: 29.7% of truck crashes were on snow, slush or ice (Montana: 39.4%).
Where crashes happen
Roads with fatal crashes involving a large truck in Custer County since 2015: I-94 (1). No single road stands out.
Garbage & waste trucks
FMCSA lists no garbage-truck crashes in Custer County since 2015.
Route planning tips for Custer County fleets
- Review driver schedules for February, the month with the most truck crashes.
- 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 Custer County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in Custer County) |
|---|---|
| I-94 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Custer County) |
|---|---|
| I-94 Business Loop | 1 |
| Mm 130.3 I94 | 1 |
| Mm.6 Mt59 | 1 |
| Mm126.4 Exit Ramp I94Wb | 1 |
| Mm128 Eb I-94 | 1 |
| Mm128.0 I94W | 1 |
| Mm129.5 I-94 | 1 |
| Mm149.7 I94E | 1 |
Custer County at a glance
| Population | 11,964 |
| Land area | 3,783.3 sq mi |
| Density | 3 per sq mi |
| Median household income (ZIP average) | $71,173 |
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 | 0 | — | 0.0 |
| 2000s | 6 | +3620% | 0.1 |
| 2010s | 9 | +52% | 0.1 |
| 2020s | 10 | +12% | 0.2 |
In the 2000s about 6 truck crashes a year were reported; in the 2020s, about 10. Reporting coverage also changed between these periods. NHTSA counts 0.0 fatal large-truck crashes a year in 2016–19 and 0.2 a year in 2020–24.
Cities, towns & communities in Custer County
ZIP codes in Custer County
Nearby counties
Questions fleets ask about Custer County
How many truck crashes happen in Custer County?
Custer County has had 118 reported truck crashes since 2015, injuring 34 people and killing 1.
What is the worst month for truck crashes in Custer County?
The worst month is February: 13.6% of truck crashes in Custer County happen then.
Are garbage truck crashes common in Custer County?
Garbage trucks were involved in 0 reported crashes in Custer County since 2015 (0.0% of truck crashes).
What is the truck crash rate in Custer County compared with Montana?
Per 100,000 residents, Custer County has 84.3 truck crashes a year; Montana has 64.3.
How can I plan a safer truck route in Custer County?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.