ZIP 59421 (Cascade, MT) truck route planning & crash data
Plan safer truck routes around ZIP 59421: commercial truck and garbage truck crashes here and in Cascade 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
4 of 268 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Cascade County compares with Montana
Cascade County against Montana and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Cascade County stands out
Full comparison
| Measure (2015–2025) | Cascade County | Montana | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 27.7 | 64.3 | 49.7 | 57% below the state |
| Deaths per 100 crashes | 5.8 | 3.8 | 3.4 | 1.5× the state |
| Injuries per crash | 0.28 | 0.34 | 0.49 | 18% below the state |
| Garbage-truck share | 1.6% | 0.9% | 2.3% | 1.7× the state |
| On snow, slush or ice | 36.0% | 39.4% | 6.2% | 8% below the state |
| Morning rush (6–10 am) | 27.5% | 22.9% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 21.3% | 20.6% | 13.8% | same |
| Winter months (Nov–Mar) | 55.0% | 54.3% | 41.9% | same |
| After dark | 28.3% | 30.8% | 24.8% | 8% below the state |
Cascade County has lower values than Montana for crashes per 100k residents / yr, injuries per crash and on snow, slush or ice. Where it is higher: deaths per 100 crashes, garbage-truck share and morning rush (6–10 am).
Cascade County at a glance: 1 in 65 of truck crashes here involve garbage trucks: 1.6%, vs 0.9% in Montana.
Overview
Cascade County has recorded 268 truck crashes since 2015, with 74 people injured and 15 killed.
That averages about one truck crash every 16 days in fully reported years.
When crashes happen
January has the most truck crashes, 12.7% of the yearly total, while April has the fewest (4.1%).
The five winter months (November to March) hold 55.0% of truck crashes, against 54.3% across Montana.
By time of day, 9–10 am stands out with 10.1% of truck crashes.
Road surface: 36.0% 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 59421 since 2015.
Garbage & waste trucks
Garbage and refuse trucks were involved in 4 crashes, 1.5% of the total, against 0.9% across Montana.
Route planning tips for ZIP 59421 fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Cascade County.
- The morning rush (6–10 am) holds 27.5% of truck crashes here, more than Montana; adjust start times where you can.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Cascade 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 (Cascade County) |
|---|---|
| Mm 1.9 Us Highway 87E | 2 |
| 23Rd St S & 10Th Ave | 1 |
| 87.5 Eb Us Hwy 87/89E | 1 |
| I-15 Nb Mp 278 | 1 |
| I-15 Sb Mp 254 | 1 |
| Lower River Rd | 1 |
| Mm 5.4 Us Highway 89/Montana 200 | 1 |
| Mm 59.6 Us 89S | 1 |
ZIP 59421 at a glance
| Population | 2,069 |
| Density | 1 per sq mi |
| Median household income | $78,125 |
| Median home value | $379,936 |
| Home ownership | 86% |
Waste facilities and haulers nearby
Historical data: truck crashes in Cascade 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 | 21 | — | 0.4 |
| 2010s | 25 | +19% | 0.7 |
| 2020s | 20 | -19% | 2.0 |
In the 2000s about 21 truck crashes a year were reported; in the 2020s, about 20. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 1.0 a year in 2016–19 and 2.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 59421
How many truck crashes happen in ZIP 59421?
Since 2015, 268 crashes involving commercial trucks were reported in Cascade County (74 injured, 15 killed).
What is the worst month for truck crashes in ZIP 59421?
January has the most truck crashes in Cascade County, 12.7% of the yearly total.
Are garbage truck crashes common in ZIP 59421?
Garbage trucks were involved in 4 reported crashes in Cascade County since 2015 (1.5% of truck crashes).
What is the truck crash rate in ZIP 59421 compared with Montana?
Per 100,000 residents, Cascade County has 27.7 truck crashes a year; Montana has 64.3.
What is the best way to plan truck routes in ZIP 59421?
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.