Issaquah, WA truck route planning & crash data
Plan safer truck routes in Issaquah: commercial truck and garbage truck crashes in Issaquah and King County, dangerous roads, seasonality and route safety data for fleets. Patterns use King County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0.6 deaths per 100 garbage-truck crashes vs 2.6 for all trucks.
Deadliest roads
How King County compares with Washington
King County against Washington and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where King County stands out
Full comparison
| Measure (2015–2025) | King County | Washington | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 22.1 | 25.8 | 49.7 | 14% below the state |
| Deaths per 100 crashes | 2.6 | 3.4 | 3.4 | 24% below the state |
| Injuries per crash | 0.17 | 0.18 | 0.49 | same |
| Garbage-truck share | 2.9% | 2.2% | 2.3% | 1.3× the state |
| On snow, slush or ice | 4.3% | 9.7% | 6.2% | 56% below the state |
| Morning rush (6–10 am) | 24.8% | 24.8% | 23.7% | same |
| In rain, sleet or snow | 21.5% | 20.2% | 13.8% | same |
| Winter months (Nov–Mar) | 41.5% | 43.8% | 41.9% | same |
| After dark | 23.9% | 25.2% | 24.8% | same |
Compared with Washington, King County is lower on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. Where it is higher: garbage-truck share.
What stands out in Issaquah: SR-18 deadliest road: 5 fatal truck crashes within 10 miles of Issaquah since 2015.
Overview
Police reported 6,019 crashes involving commercial trucks in King County since 2015: 1,063 people were injured and 156 were killed.
Across the years with complete reporting, that is roughly 1 truck crash every day.
Issaquah had 131 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use King County numbers.
When crashes happen
Truck crashes peak in October (9.3% of the year) and are lowest in May (7.4%).
November through March accounts for 41.5% of truck crashes here, compared with 43.8% in Washington.
By time of day, 12–1 pm stands out with 7.4% of truck crashes.
4.3% of truck crashes here happened on snow, slush or ice, against 9.7% across Washington.
Where crashes happen
The deadliest road for trucks within 10 miles of Issaquah is SR-18, with 5 fatal large-truck crashes since 2015. It is followed by I-405 (3), I-90 (3) and SR-202 (2).
Garbage & waste trucks
Garbage and refuse trucks were involved in 180 crashes, 3.0% of the total, against 2.2% across Washington.
The most garbage-truck crashes happen in April (12%).
Per 100 crashes, garbage trucks recorded 0.6 deaths compared with 2.6 for all trucks.
Route planning tips for Issaquah fleets
- Review driver schedules for October, the month with the most truck crashes.
- Where you can, review stops along SR-18; it has the most fatal large-truck crashes nearby.
- Waste haulers: April is the peak month for garbage-truck crashes in King County.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in King County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-18 | 5 |
| I-405 | 3 |
| I-90 | 3 |
| SR-202 | 2 |
| CR-SE May Valley Rd | 1 |
| Lind Ave Sw | 1 |
| Mu-Ne 3rd St | 1 |
| Mu-Ne 48th St | 1 |
| Ne 28th St | 1 |
| Olympic Ct Se | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (King County) |
|---|---|
| Sr-167*026.00 | 24 |
| Sr-167*024.00 | 23 |
| Sr-167*014.00 | 22 |
| Sr-18*026.30 | 19 |
| Sr-167*019.00 | 18 |
| Sr-18*002.00 | 18 |
| Sr-18*001.00 | 17 |
| Sr-18*003.00 | 16 |
Issaquah at a glance
| Population | 39,664 |
| Land area | 12.1 sq mi |
| Density | 3,270 per sq mi |
| Median household income (ZIP 98029) | $170,759 |
| Median home value (ZIP 98029) | $1,050,232 |
Waste facilities and haulers nearby
Historical data: truck crashes in King 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 | 330 | — | 10.3 |
| 2000s | 344 | +4% | 8.0 |
| 2010s | 451 | +31% | 7.2 |
| 2020s | 523 | +16% | 14.6 |
From the 1990s to the 2020s, yearly reported truck crashes went from 330 to 523. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 10.0 a year in 2016–19, 14.6 a year in 2020–24.
Nearby places
Questions fleets ask about Issaquah
How common are truck crashes in Issaquah?
Since 2015, 6,019 crashes involving commercial trucks were reported in King County (1,063 injured, 156 killed).
Where do fatal truck crashes happen most in Issaquah?
NHTSA data shows SR-18 with 5 fatal large-truck crashes within 10 miles of Issaquah since 2015, the highest of any road.
Which month has the most truck crashes in Issaquah?
October has the most truck crashes in King County, 9.3% of the yearly total.
How many garbage truck accidents happen in Issaquah?
Since 2015, King County has reported 180 garbage-truck crashes, or 3.0% of its truck crashes.
What is the truck crash rate in Issaquah compared with Washington?
The yearly rate is 22.1 truck crashes per 100,000 residents in King County, vs 25.8 for Washington.
How can I plan a safer truck route in Issaquah?
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.