Stillwater County, MT truck route planning & crash data
Plan safer truck routes in Stillwater 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 254 truck crashes since 2015.
Deadliest roads
How Stillwater County compares with Montana
Stillwater County against Montana and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Stillwater County stands out
Full comparison
| Measure (2015–2025) | Stillwater County | Montana | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 227.0 | 64.3 | 49.7 | 3.5× the state |
| Deaths per 100 crashes | 2.5 | 3.8 | 3.4 | 34% below the state |
| Injuries per crash | 0.32 | 0.34 | 0.49 | same |
| Garbage-truck share | 0.0% | 0.9% | 2.3% | 100% below the state |
| On snow, slush or ice | 59.3% | 39.4% | 6.2% | 1.5× the state |
| Morning rush (6–10 am) | 25.4% | 22.9% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 33.9% | 20.6% | 13.8% | 1.6× the state |
| Winter months (Nov–Mar) | 64.0% | 54.3% | 41.9% | 1.2× the state |
| After dark | 29.2% | 30.8% | 24.8% | same |
Stillwater County has lower values than Montana for deaths per 100 crashes and garbage-truck share. Where it is higher: crashes per 100k residents / yr, on snow, slush or ice and morning rush (6–10 am).
What stands out in Stillwater County: February worst month: 22.4% of truck crashes, vs 8.3% in an average month.
Overview
Since 2015, 254 crashes involving commercial trucks have been reported in Stillwater County. They injured 79 people and killed 8.
That averages about one truck crash every 17 days in fully reported years.
When crashes happen
The worst month is February with 22.4% of truck crashes; the quietest is May at 3.5%.
The five winter months (November to March) hold 64.0% of truck crashes, against 54.3% across Montana.
The busiest hour is 9–10 am, with 11.4% of truck crashes.
Road surface: 59.3% of truck crashes were on snow, slush or ice (Montana: 39.4%).
Where crashes happen
Since 2015, fatal crashes with a large truck in Stillwater County happened on I- 90 (1) and I-90 (1); no road leads clearly.
Garbage & waste trucks
FMCSA lists no garbage-truck crashes in Stillwater County since 2015.
Route planning tips for Stillwater County fleets
- Review driver schedules for February, the month with the most truck crashes.
- 25.4% of truck crashes happen between 6 and 10 am, above Montana; consider earlier or later starts where possible.
- Icy and snowy roads show up in 59.3% of truck crashes here, more than Montana; schedule winter checks early.
- 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 Stillwater County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in Stillwater County) |
|---|---|
| I- 90 | 1 |
| I-90 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Stillwater County) |
|---|---|
| I-90 E Mm398.1 | 2 |
| Mm412.0 I90W | 2 |
| Bull Dr | 1 |
| Hwy 10 Mmm 8.8 | 1 |
| Mm 2.5 S-421 | 1 |
| Mm 396.1 I-90 | 1 |
| Mm 398.3 I 90 | 1 |
| Mm 418.3 I-90 | 1 |
Stillwater County at a glance
| Population | 9,450 |
| Land area | 1,796.5 sq mi |
| Density | 5 per sq mi |
| Median household income (ZIP average) | $85,946 |
Waste facilities and haulers nearby
Historical data: truck crashes in Stillwater 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 |
| 2000s | 10 | — | 0.0 |
| 2010s | 16 | +55% | 0.2 |
| 2020s | 25 | +55% | 0.4 |
In the 2000s about 10 truck crashes a year were reported; in the 2020s, about 25. Reporting coverage also changed between these periods. Fatal large-truck crashes: 0.0 a year in 2016–19, 0.4 a year in 2020–24.
Cities, towns & communities in Stillwater County
ZIP codes in Stillwater County
Nearby counties
Questions fleets ask about Stillwater County
How common are truck crashes in Stillwater County?
Since 2015, 254 crashes involving commercial trucks were reported in Stillwater County (79 injured, 8 killed).
Which month has the most truck crashes in Stillwater County?
February has the most truck crashes in Stillwater County, 22.4% of the yearly total.
How many garbage truck crashes are there in Stillwater County?
Garbage trucks were involved in 0 reported crashes in Stillwater County since 2015 (0.0% of truck crashes).
How does Stillwater County compare with Montana for truck crashes?
The yearly rate is 227.0 truck crashes per 100,000 residents in Stillwater County, vs 64.3 for Montana.
How do I plan a garbage truck route in Stillwater 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.