ZIP 99363 (Wallula, WA) truck route planning & crash data
Plan safer truck routes around ZIP 99363: commercial truck and garbage truck crashes here and in Walla Walla 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 232 truck crashes since 2015.
Deadliest roads
How Walla Walla County compares with Washington
Walla Walla County against Washington and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Walla Walla County stands out
Full comparison
| Measure (2015–2025) | Walla Walla County | Washington | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 32.2 | 25.8 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 3.6 | 3.4 | 3.4 | same |
| Injuries per crash | 0.14 | 0.18 | 0.49 | 22% below the state |
| Garbage-truck share | 1.8% | 2.2% | 2.3% | 17% below the state |
| On snow, slush or ice | 15.9% | 9.7% | 6.2% | 1.6× the state |
| Morning rush (6–10 am) | 34.1% | 24.8% | 23.7% | 1.4× the state |
| In rain, sleet or snow | 12.7% | 20.2% | 13.8% | 37% below the state |
| Winter months (Nov–Mar) | 41.4% | 43.8% | 41.9% | same |
| After dark | 19.6% | 25.2% | 24.8% | 22% below the state |
Compared with Washington, Walla Walla County is lower on injuries per crash, garbage-truck share and in rain, sleet or snow. It stands out for higher crashes per 100k residents / yr, on snow, slush or ice and morning rush (6–10 am).
What stands out in Walla Walla County: 15.9% of truck crashes happened on snow, slush or ice, vs 9.7% in Washington.
Overview
Police reported 232 crashes involving commercial trucks in Walla Walla County since 2015: 33 people were injured and 9 were killed.
Across the years with complete reporting, that is roughly one truck crash every 18 days.
When crashes happen
January has the most truck crashes, 11.6% of the yearly total, while May has the fewest (4.7%).
The five winter months (November to March) hold 41.4% of truck crashes, against 43.8% across Washington.
The busiest hour is 7–8 am, with 10.3% of truck crashes.
Snow, slush or ice was on the road in 15.9% of truck crashes, compared with 9.7% in Washington.
Where crashes happen
Fatal large-truck crashes within 10 miles of ZIP 99363 since 2015 were spread across roads: US-12 (2), SR-730 (1) and US-730 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 4 crashes, 1.7% of the total, against 2.2% across Washington.
Route planning tips for ZIP 99363 fleets
- Review driver schedules for January, the month with the most truck crashes.
- The morning rush (6–10 am) holds 34.1% of truck crashes here, more than Washington; adjust start times where you can.
- 15.9% of truck crashes were on snow, slush or ice, above Washington; plan winter equipment checks before the season.
- 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 Walla Walla County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-12 | 2 |
| SR-730 | 1 |
| US-730 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Walla Walla County) |
|---|---|
| Sr-12*301.00 | 4 |
| Sr-730*003.00 | 4 |
| Sr-12*307.00 | 3 |
| Sr-12*314.00 | 3 |
| Sr-730*001.00 | 3 |
| Sr-730*005.00 | 3 |
| Sr 12 Mp 314.30 | 2 |
| Sr-12 Mp 251.33 | 2 |
ZIP 99363 at a glance
| Population | 145 |
| Density | 2 per sq mi |
| Home ownership | 100% |
Waste facilities and haulers nearby
Historical data: truck crashes in Walla Walla 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 | 15 | — | 1.5 |
| 2000s | 15 | +2% | 1.9 |
| 2010s | 18 | +23% | 0.8 |
| 2020s | 21 | +16% | 0.8 |
From the 1990s to the 2020s, yearly reported truck crashes went from 15 to 21. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 0.5 a year in 2016–19 and 0.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 99363
How common are truck crashes in ZIP 99363?
Walla Walla County has had 232 reported truck crashes since 2015, injuring 33 people and killing 9.
Which month has the most truck crashes in ZIP 99363?
The worst month is January: 11.6% of truck crashes in Walla Walla County happen then.
How many garbage truck crashes are there in ZIP 99363?
Garbage trucks were involved in 4 reported crashes in Walla Walla County since 2015 (1.7% of truck crashes).
How does ZIP 99363 compare with Washington for truck crashes?
Per 100,000 residents, Walla Walla County has 32.2 truck crashes a year; Washington has 25.8.
How do I plan a garbage truck route in ZIP 99363?
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.