ZIP 98584 (Shelton, WA) truck route planning & crash data
Plan safer truck routes around ZIP 98584: commercial truck and garbage truck crashes here and in Mason 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
2 of 135 truck crashes since 2015.
Deadliest roads
How Mason County compares with Washington
Mason County against Washington and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Mason County stands out
Full comparison
| Measure (2015–2025) | Mason County | Washington | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 16.5 | 25.8 | 49.7 | 36% below the state |
| Deaths per 100 crashes | 8.7 | 3.4 | 3.4 | 2.6× the state |
| Injuries per crash | 0.25 | 0.18 | 0.49 | 1.4× the state |
| Garbage-truck share | 1.6% | 2.2% | 2.3% | 27% below the state |
| On snow, slush or ice | 8.7% | 9.7% | 6.2% | 10% below the state |
| Morning rush (6–10 am) | 29.4% | 24.8% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 20.6% | 20.2% | 13.8% | same |
| Winter months (Nov–Mar) | 45.2% | 43.8% | 41.9% | same |
| After dark | 17.5% | 25.2% | 24.8% | 31% below the state |
Mason County has lower values than Washington for crashes per 100k residents / yr, garbage-truck share and on snow, slush or ice. It stands out for higher deaths per 100 crashes, injuries per crash and morning rush (6–10 am).
What stands out in Mason County: 8.7 people killed per 100 truck crashes (Washington: 3.4).
Overview
Police reported 135 crashes involving commercial trucks in Mason County since 2015: 34 people were injured and 11 were killed.
In complete reporting years that works out to about one truck crash every 32 days.
When crashes happen
The worst month is October with 13.3% of truck crashes; the quietest is May at 3.7%.
The five winter months (November to March) hold 45.2% of truck crashes, against 43.8% across Washington.
The busiest hour is 11 am–12 pm, with 11.1% of truck crashes.
Road surface: 8.7% of truck crashes were on snow, slush or ice (Washington: 9.7%).
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 98584 happened on US-101 (3) and CR-W Shelton Matlock Rd (1); no road leads clearly.
Garbage & waste trucks
Garbage trucks account for 2 of the truck crashes here, or 1.5%, compared with 2.2% in Washington.
Route planning tips for ZIP 98584 fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Mason County.
- The morning rush (6–10 am) holds 29.4% of truck crashes here, more than Washington; 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 Mason County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-101 | 3 |
| CR-W Shelton Matlock Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Mason County) |
|---|---|
| Sr-101*329.00 | 3 |
| Sr-101*341.43 | 3 |
| Johns Prairie Rd Blk 1300 | 2 |
| Sr-101*319.70 | 2 |
| Sr-101*327.00 | 2 |
| Sr-101*332.00 | 2 |
| Sr-101*335.00 | 2 |
| Sr-101*340.00 | 2 |
ZIP 98584 at a glance
| Population | 40,606 |
| Density | 44 per sq mi |
| Median household income | $78,610 |
| Median home value | $389,749 |
| Home ownership | 80% |
Waste facilities and haulers nearby
Historical data: truck crashes in Mason 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 | 9 | — | 0.6 |
| 2000s | 9 | -2% | 1.0 |
| 2010s | 11 | +20% | 0.9 |
| 2020s | 12 | +16% | 1.6 |
In the 1990s about 9 truck crashes a year were reported; in the 2020s, about 12. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 0.8 a year in 2016–19 and 1.6 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 98584
How common are truck crashes in ZIP 98584?
Mason County has had 135 reported truck crashes since 2015, injuring 34 people and killing 11.
What is the worst month for truck crashes in ZIP 98584?
Truck crashes in Mason County peak in October, with 13.3% of the year's crashes.
How many garbage truck accidents happen in ZIP 98584?
2 crashes involving garbage or refuse trucks have been reported in Mason County since 2015, 1.5% of all truck crashes.
What is the truck crash rate in ZIP 98584 compared with Washington?
Mason County records 16.5 truck crashes per 100,000 residents a year, against 25.8 across Washington.
How can I plan a safer truck route in ZIP 98584?
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.