Diesel mechanic salary in Washington
Median $37.45 an hour for 7,410 diesel mechanics, May 2025, with the union scale by county, the job trend since 1999 and the state's own outlook.
Diesel mechanic pay in Washington: the full range
Washington ranks 2nd of 51 states for median diesel mechanic pay, and 4th once adjusted for cost of living (the cost-of-living-adjusted median is $35.00). 7,410 diesel mechanics work in the state. The top 10% earn 1.9× what the bottom 10% earn.
| Career stage (approximate) | Hourly | Annual | Where it sits in the distribution |
|---|---|---|---|
| Apprentice / entry level | $26.31 – $30.62 | $54,720 – $63,700 | roughly the 10th to 25th percentile |
| Journeyman | $30.62 – $44.66 | $63,700 – $92,880 | the middle half, around the median |
| Master, foreman or specialist | $44.66 – $49.42 | $92,880 – $102,800 | the 75th to 90th percentile and above |
Where does your pay fall?
Diesel mechanic pay by metro in Washington
| Metro | 10th | Median $/hr | Cost-of-living adjusted | 90th | Jobs | vs state |
|---|---|---|---|---|---|---|
| Seattle | $29.53 | $39.58 | $35.63 | $55.56 | 3,740 | 6% above |
| Bremerton | $29.46 | $38.68 | $36.63 | $47.81 | 160 | 3% above |
| Olympia | $28.06 | $37.96 | $36.61 | $45.66 | 260 | 1% above |
| Bellingham | $27.98 | $37.66 | $36.46 | $46.12 | 220 | 1% above |
| Mount Vernon | $25.00 | $37.24 | $36.37 | $46.40 | 170 | 1% below |
| Longview | $27.58 | $35.94 | $36.86 | $44.28 | 120 | 4% below |
| Portland | $24.60 | $34.61 | $32.84 | $43.61 | 2,330 | 8% below |
| Kennewick | $22.55 | $33.53 | $33.50 | $41.13 | 250 | 10% below |
| Wenatchee | $25.10 | $33.03 | $31.79 | $51.96 | 100 | 12% below |
| Walla Walla | $25.25 | $32.36 | $32.85 | $43.45 | 50 | 14% below |
| Spokane | $24.35 | $31.19 | $31.10 | $44.85 | 780 | 17% below |
| Yakima | $22.26 | $30.76 | $32.21 | $41.04 | 260 | 18% below |
| Lewiston | $23.37 | $30.13 | $33.04 | $37.17 | 70 | 20% below |
Cost-of-living adjusted: median divided by the BEA regional price parity for the metro (2024, US = 100).
Diesel mechanic wages in Washington over time
Table
| Year | Washington $/hr | In 2025 $ | US $/hr | Jobs |
|---|---|---|---|---|
| 1999 | $17.98 | $34.75 | $14.77 | 7,370 |
| 2000 | $19.85 | $37.11 | $15.55 | 7,070 |
| 2001 | $20.07 | $36.48 | $16.14 | 6,470 |
| 2002 | $19.88 | $35.58 | $16.53 | 5,950 |
| 2003 | $20.11 | $35.19 | $16.81 | 5,560 |
| 2004 | $20.38 | $34.73 | $17.20 | 6,070 |
| 2005 | $20.15 | $33.22 | $17.61 | 5,850 |
| 2006 | $20.46 | $32.67 | $18.11 | 5,720 |
| 2007 | $21.13 | $32.81 | $18.58 | 5,500 |
| 2008 | $21.92 | $32.78 | $18.94 | 5,380 |
| 2009 | $23.01 | $34.53 | $19.35 | 5,860 |
| 2010 | $23.63 | $34.89 | $19.64 | 6,380 |
| 2011 | $24.08 | $34.46 | $20.02 | 6,710 |
| 2012 | $24.83 | $34.82 | $20.35 | 5,770 |
| 2013 | $24.64 | $34.05 | $20.54 | 5,330 |
| 2014 | $25.25 | $34.34 | $20.98 | 5,090 |
| 2015 | $24.88 | $33.79 | $21.40 | 5,210 |
| 2016 | $25.52 | $34.23 | $21.72 | 5,120 |
| 2017 | $25.81 | $33.90 | $22.29 | 5,720 |
| 2018 | $26.58 | $34.08 | $22.76 | 6,120 |
| 2019 | $27.16 | $34.20 | $23.32 | 6,570 |
| 2020 | $28.61 | $35.59 | $24.13 | 6,510 |
| 2021 | $29.22 | $34.72 | $23.41 | 6,590 |
| 2022 | $30.77 | $33.85 | $26.14 | 6,790 |
| 2023 | $32.00 | $33.81 | $28.35 | 6,590 |
| 2024 | $36.99 | $37.96 | $29.15 | 6,880 |
| 2025 | $37.45 | $37.45 | $29.70 | 7,410 |
In today's dollars, the median diesel mechanic wage in Washington changed by +10.8% over the last ten years of data and by +9.5% since 2019.
Are there more diesel mechanic jobs in Washington?
Since 1999, the number of diesel mechanics counted in Washington has changed by +0.5%, against +6.1% for the country as a whole. Since 2019 the state count changed by +12.8%.
Table
| Year | Washington jobs | Washington index | US index |
|---|---|---|---|
| 1999 | 7,370 | 100 | 100 |
| 2000 | 7,070 | 96 | 95 |
| 2001 | 6,470 | 88 | 93 |
| 2002 | 5,950 | 81 | 93 |
| 2003 | 5,560 | 75 | 91 |
| 2004 | 6,070 | 82 | 92 |
| 2005 | 5,850 | 79 | 91 |
| 2006 | 5,720 | 78 | 93 |
| 2007 | 5,500 | 75 | 92 |
| 2008 | 5,380 | 73 | 91 |
| 2009 | 5,860 | 80 | 85 |
| 2010 | 6,380 | 87 | 82 |
| 2011 | 6,710 | 91 | 82 |
| 2012 | 5,770 | 78 | 84 |
| 2013 | 5,330 | 72 | 87 |
| 2014 | 5,090 | 69 | 89 |
| 2015 | 5,210 | 71 | 92 |
| 2016 | 5,120 | 70 | 93 |
| 2017 | 5,720 | 78 | 95 |
| 2018 | 6,120 | 83 | 97 |
| 2019 | 6,570 | 89 | 97 |
| 2020 | 6,510 | 88 | 93 |
| 2021 | 6,590 | 89 | 96 |
| 2022 | 6,790 | 92 | 99 |
| 2023 | 6,590 | 89 | 104 |
| 2024 | 6,880 | 93 | 105 |
| 2025 | 7,410 | 100 | 106 |
Job counts are BLS OEWS survey estimates built from three years of samples, so moves of a few percent from one year to the next are within the survey's margin. Self-employed tradespeople are not counted. Areas with fewer than 3,000 jobs or a large sampling error are shown as a single figure rather than a trend.
Outlook for diesel mechanics in Washington
Washington's labor market agency projects the number of diesel mechanics in the state to change by +5.2% between 2024 and 2034, from 8,160 to 8,580, with about 750 openings a year. Nationally, BLS projects +3.6% over 2025-35. State counts include the self-employed, so the base is larger than the 7,410 counted by the BLS employer survey.
Source: Washington labor market information agency via Projections Central, 2024–2034 long-term projections (state projections page).
Is construction work growing in Washington?
Keep comparing
Diesel mechanic pay in neighbouring states
Other trades in Washington
More on Washington
Questions this page answers
How much do diesel mechanics make in Washington?
The median diesel mechanic in Washington earned $37.45 an hour ($77,900 a year) in May 2025, 26% above the national median of $29.70. The middle half earn $30.62–$44.66; the top 10% earn more than $49.42.
Where does Washington rank for diesel mechanic pay?
Washington ranks 2nd of 51 states for diesel mechanic pay, with a median of $37.45 an hour, and 4th after adjusting for Washington's cost of living (BEA price parity 107.0, US = 100).
What is the union diesel mechanic rate in Washington?
Davis-Bacon determinations do not list a diesel mechanic classification for most Washington counties, or the trade is not covered; the BLS wage figures above are the best available measure.
How many diesel mechanics work in Washington?
BLS counted 7,410 diesel mechanics in Washington in May 2025, 2.1 per 1,000 jobs (location quotient 1.12; 1.0 is the national average concentration).
Is diesel mechanic work growing in Washington?
The BLS employer survey count of diesel mechanics in Washington went from 5,210 in 2015 to 7,410 in 2025, +42.2%, and +12.8% since 2019. Washington's labor market agency projects +5.2% growth for diesel mechanics between 2024 and 2034, from 8,160 to 8,580 jobs.
How many diesel mechanic openings a year are there in Washington?
Washington projects about 750 openings a year for diesel mechanics over 2024–2034, counting both new positions and replacements for people who retire or change occupation. Nationally BLS projects about 24,400 a year.
Sources and notes
- BLS Occupational Employment and Wage Statistics, May 2025, Washington and metro areas, SOC 49-3031. Job counts are survey estimates and exclude the self-employed.
- BLS Current Employment Statistics, state construction employment through 2026-09.
- BLS Quarterly Census of Employment and Wages, 2025 annual averages.
- BEA Regional Price Parities, 2024 (cost-of-living adjustment).
- SAM.gov Davis-Bacon wage determinations, current revisions as of 2026-11-13. Not the official determination.
- BLS Employment Projections, national, 2025-35.
- State projection: Washington labor market information agency via Projections Central, 2024–2034, fetched 2026-10-05.