Diesel Mechanic Salary in Seattle, Washington
The median diesel mechanic salary in Seattle, WA is $81,992 per year, which is 48.0% above the national median and 28.7% above the Washington state average.
Diesel Mechanic Pay in Seattle: What to Expect (2026)
Seattle offers a median diesel mechanic salary of $81,992, which is $18,282 above the Washington state average of $63,710. Compared to the national median of $55,400, Seattle pays above average for this role.
However, Seattle's cost of living index is 148%, significantly above the national average. After adjusting for local costs, the $81,992 salary has an effective purchasing power of approximately $55,400. Housing, transportation, and food costs in Seattle should be factored into any relocation or job-change decision.
The salary range for diesel mechanics in Seattle spans from $51,800 at the 10th percentile to $121,360 at the 90th percentile — a $69,560 spread. Entry-level professionals start around $54,760, while senior diesel mechanics with 8+ years of experience can earn up to $115,440. As a major metro area with a population of 737,015, Seattle typically offers more job opportunities and employer competition, which can drive salaries higher.
Diesel Mechanic Salary in Seattle by Experience
In Seattle, an entry-level diesel mechanic earns around $54,760, while experienced professionals earn up to $115,440 per year. The local cost of living index is 148% of the national average.
Salary Percentiles in Seattle, WA
| Percentile | Seattle |
|---|---|
| 10th Percentile | $51,800 |
| 25th Percentile | $63,640 |
| Median (50th) | $81,992 |
| 75th Percentile | $102,120 |
| 90th Percentile | $121,360 |
Diesel Mechanic Salary in Other Washington Cities
How to Become a Diesel Mechanic in Seattle
Education
Most diesel mechanic positions require a high school diploma. Seattle and the surrounding Washington area have institutions offering relevant programs.
Key Skills
Job Outlook
Nationally, diesel mechanic employment is projected to grow 5% over the next decade (faster than average). Demand in Seattle may vary based on local industry and population growth.
Find Diesel Mechanic Jobs in Seattle
Browse open diesel mechanic positions in Seattle, WA: