Diesel Mechanic Salary in Washington
The median diesel mechanic salary in Washington is $63,710 per year, which is 15.0% above the national median of $55,400.
Diesel Mechanic Salary Overview in Washington (2026)
Washington ranks #7 out of 50 states for diesel mechanic compensation. This places Washington in the top tier nationally, making it one of the best states for diesel mechanics seeking high pay. At $63,710 per year, diesel mechanics in Washington earn $8,310 more than the national median of $55,400.
It's worth noting that Washington's cost of living is 115% of the national average, which reduces the real purchasing power of the $63,710 salary. After adjusting for cost of living, the effective salary is closer to $55,400.
The salary spread in Washington is significant: diesel mechanics at the 10th percentile earn $40,250, while those at the 90th percentile bring home $94,300 — a $54,050 gap that reflects differences in experience, specialization, employer type, and metro area. The highest-paying city in Washington for this role is Bellevue, where the median reaches $84,208.
Nationally, diesel mechanic employment is projected to grow 5% over the next decade (faster than average). This steady growth indicates stable demand for diesel mechanics across the country.
Diesel Mechanic Salary in Washington by Experience
In Washington, an entry-level diesel mechanic earns around $42,550, while experienced professionals earn up to $89,700 per year. The cost of living index in Washington is 115% of the national average.
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See Investment Options →Salary Percentiles in Washington
| Percentile | WA Salary |
|---|---|
| 10th Percentile | $40,250 |
| 25th Percentile | $49,450 |
| Median (50th) | $63,710 |
| 75th Percentile | $79,350 |
| 90th Percentile | $94,300 |
Diesel Mechanic Salary by City in Washington
The largest employment areas for diesel mechanics in Washington include Seattle, Spokane, Tacoma, and Bellevue. Salaries vary by city based on local cost of living and demand.
How to Become a Diesel Mechanic in Washington
Education
Most diesel mechanic positions require a high school diploma. Washington has several accredited institutions offering relevant programs.
Key Skills
Job Outlook in Washington
Nationally, diesel mechanic employment is projected to grow 5% over the next decade (faster than average). Washington's demand may vary based on local industry trends.
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