ZIP 98555 (Lilliwaup, WA) truck route planning & crash data
Plan safer truck routes around ZIP 98555: 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 |
Compared with Washington, Mason County is lower on 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).
Mason County at a glance: 8.7 deaths per 100 truck crashes, vs 3.4 in Washington.
Overview
Police reported 135 crashes involving commercial trucks in Mason County since 2015: 34 people were injured and 11 were killed.
Across the years with complete reporting, that is roughly one truck crash every 32 days.
When crashes happen
October has the most truck crashes, 13.3% of the yearly total, while May has the fewest (3.7%).
The five winter months (November to March) hold 45.2% of truck crashes, against 43.8% across Washington.
More truck crashes happen at 11 am–12 pm than at any other hour (11.1%).
8.7% of truck crashes here happened on snow, slush or ice, against 9.7% across Washington.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 98555 happened on US-101 (2) and CR-NE Belfair Tahuya Rd (1); no road leads clearly.
Garbage & waste trucks
Garbage and refuse trucks were involved in 2 crashes, 1.5% of the total, against 2.2% across Washington.
Route planning tips for ZIP 98555 fleets
- Build extra time into October routes: it has the most truck crashes here.
- 29.4% of truck crashes happen between 6 and 10 am, above Washington; consider earlier or later starts where possible.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Mason County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-101 | 2 |
| CR-NE Belfair Tahuya 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 98555 at a glance
| Population | 324 |
| Density | 5 per sq mi |
| Home ownership | 76% |
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 |
Reported truck crashes averaged 9 a year in the 1990s and 12 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. 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 98555
How common are truck crashes in ZIP 98555?
Since 2015, 135 crashes involving commercial trucks were reported in Mason County (34 injured, 11 killed).
When do most truck crashes happen in ZIP 98555?
October has the most truck crashes in Mason County, 13.3% of the yearly total.
How many garbage truck crashes are there in ZIP 98555?
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 98555 compared with Washington?
The yearly rate is 16.5 truck crashes per 100,000 residents in Mason County, vs 25.8 for Washington.
How can I plan a safer truck route in ZIP 98555?
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.