ZIP 59632 (Boulder, MT) truck route planning & crash data
Plan safer truck routes around ZIP 59632: commercial truck and garbage truck crashes here and in Jefferson 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
1 of 382 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Jefferson County compares with Montana
Jefferson County against Montana and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Jefferson County stands out
Full comparison
| Measure (2015–2025) | Jefferson County | Montana | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 241.9 | 64.3 | 49.7 | 3.8× the state |
| Deaths per 100 crashes | 4.8 | 3.8 | 3.4 | 1.3× the state |
| Injuries per crash | 0.29 | 0.34 | 0.49 | 15% below the state |
| Garbage-truck share | 0.3% | 0.9% | 2.3% | 70% below the state |
| On snow, slush or ice | 39.3% | 39.4% | 6.2% | same |
| Morning rush (6–10 am) | 19.2% | 22.9% | 23.7% | 16% below the state |
| In rain, sleet or snow | 15.0% | 20.6% | 13.8% | 27% below the state |
| Winter months (Nov–Mar) | 52.8% | 54.3% | 41.9% | same |
| After dark | 32.5% | 30.8% | 24.8% | same |
Compared with Montana, Jefferson County is lower on injuries per crash, garbage-truck share and morning rush (6–10 am). It stands out for higher crashes per 100k residents / yr and deaths per 100 crashes.
What stands out in Jefferson County: 1 in 357 garbage-truck share of crashes is 0.3%, against 0.9% for Montana.
Overview
Since 2015, 382 crashes involving commercial trucks have been reported in Jefferson County. They injured 116 people and killed 17.
Across the years with complete reporting, that is roughly one truck crash every 11 days.
When crashes happen
Truck crashes peak in January (11.8% of the year) and are lowest in May (3.9%).
Winter months (Nov–Mar) carry 52.8% of truck crashes, vs 54.3% for Montana.
More truck crashes happen at 10–11 am than at any other hour (8.4%).
Road surface: 39.3% of truck crashes were on snow, slush or ice (Montana: 39.4%).
Where crashes happen
No fatal crash involving a large truck has a recorded location within 10 miles of ZIP 59632 since 2015.
Garbage & waste trucks
1 crash involved a garbage or refuse truck, a 0.3% share (Montana: 0.9%).
Route planning tips for ZIP 59632 fleets
- Review driver schedules for January, the month with the most truck crashes.
- 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 Jefferson County
By hour of day
Most dangerous roads for trucks
No fatal crashes involving a large truck with a road name were recorded within 10 miles since 2015.
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Jefferson County) |
|---|---|
| I-90 | 3 |
| Mm 14 Mt-69 | 2 |
| I-902 Mm237.7 | 1 |
| I-90E Mm239.8 | 1 |
| I-90E Mm259.1 | 1 |
| I-90W Mm255.9 | 1 |
| Mile 0.0 State Hwy 69 | 1 |
| Mm 155.0 I-15S | 1 |
ZIP 59632 at a glance
| Population | 2,557 |
| Density | 2 per sq mi |
| Median household income | $68,750 |
| Median home value | $281,476 |
| Home ownership | 78% |
Waste facilities and haulers nearby
Historical data: truck crashes in Jefferson 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 | — | — | 0.6 |
| 2000s | 16 | — | 0.5 |
| 2010s | 24 | +57% | 0.5 |
| 2020s | 36 | +48% | 1.4 |
In the 2000s about 16 truck crashes a year were reported; in the 2020s, about 36. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 0.2 a year in 2016–19 and 1.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 59632
How many truck crashes happen in ZIP 59632?
Since 2015, 382 crashes involving commercial trucks were reported in Jefferson County (116 injured, 17 killed).
When do most truck crashes happen in ZIP 59632?
The worst month is January: 11.8% of truck crashes in Jefferson County happen then.
How many garbage truck accidents happen in ZIP 59632?
Garbage trucks were involved in 1 reported crash in Jefferson County since 2015 (0.3% of truck crashes).
How does ZIP 59632 compare with Montana for truck crashes?
Jefferson County records 241.9 truck crashes per 100,000 residents a year, against 64.3 across Montana.
How do I plan a garbage truck route in ZIP 59632?
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.