Mechanical Engineer Salary in Washington (2026)
✓ No state income taxAverage Mechanical Engineer pay in Washington
$121,370/year
≈ $58/hour before tax
After tax (single filer)
$94,214/year
$7,851/month · effective tax rate 22.37%
- Federal $17,871
- FICA $9,285
- Take-home
Pay by role in Washington
- Senior / Principal ME (any industry)BLS · 75th–90th percentile$139,870–$167,680
- Mechanical Engineer (any industry)BLS · middle 50%$94,560–$139,870
- EIT / Entry-Level MEBLS · 10th–25th percentile$79,400–$94,560
- Engineering ManagerBLS · middle 50%$166,270–$217,070
See the full tax breakdown
| Category | Amount |
|---|---|
Annual Take-Home Pay | $94,214 |
Monthly Take-Home Pay | $7,851 |
Biweekly Take-Home Pay | $3,624 |
Hourly Take-Home Pay based on 2,080 hrs/year | $45/hr |
Federal Tax | $17,871 |
State Tax | $0 |
FICA Taxes | $9,285 |
Effective Tax Rate total taxes ÷ gross salary | 22.37% |
Not all Mechanical Engineers earn the same — not even close
Washington's mechanical engineering market is dominated by Boeing Commercial Airplanes (Everett + Renton aerospace manufacturing, ~70K WA employees including substantial mechanical design + manufacturing engineering for 737/777/787), Vigor Industrial Seattle (shipbuilding + naval engineering), Puget Sound Naval Shipyard Bremerton (one of four US Navy public shipyards, ~14K civilian + military, nuclear submarine + aircraft carrier maintenance), UW Mechanical Engineering academic research, plus the BP Refinery Cherry Point + Anacortes refineries petrochemical engineering.
Senior / Principal ME (any industry)
$139,870–$167,680
Boeing senior · staff + principal mechanical engineering · 787/777X program leadership · senior IC + RSU
Source: BLS May 2025 · Mechanical Engineers · Washington · 75th–90th percentile
Mechanical Engineer (any industry)
$94,560–$139,870
PE-licensed · post-UW + WSU + Western Washington · transitioning to senior band
Source: BLS May 2025 · Mechanical Engineers · Washington · middle 50%
EIT / Entry-Level ME
$79,400–$94,560
Pre-PE band · UW + WSU + Western Washington + Seattle Univ + Pacific Lutheran new grads · entry band
Source: BLS May 2025 · Mechanical Engineers · Washington · 10th–25th percentile
Engineering Manager
$166,270–$217,070
Boeing program mechanical engineering PM · 777X + Future Aircraft programs · senior IC
Source: BLS May 2025 · Architectural and Engineering Managers · Washington · middle 50%
Worth knowing: Boeing Commercial Airplanes is the structural depth feature most national mechanical engineering surveys understate for WA. Boeing Everett (the largest building in the world by volume, ~98M cubic feet, where 747/767/777/787 final assembly happens) plus Boeing Renton (737 + 737 MAX final assembly) plus the Auburn fabrication facility together employ ~70K WA staff with substantial mechanical design + manufacturing engineering organizations. Boeing senior mechanical engineers + principal engineers routinely clear $155-365K TC including base + bonus + . Puget Sound Naval Shipyard Bremerton (one of four US Navy public shipyards) drives substantial nuclear submarine + aircraft carrier mechanical engineering — senior cleared naval engineers with TS clearance plus nuclear-trained-engineer credentials routinely clear $165-265K TC. Vigor Industrial (Seattle + Portland shipbuilding, ~2.5K employees) builds Coast Guard cutters + Army Corps tugs + commercial barges. WA's 0% state income tax (no income tax) + no city earnings tax means a $250K senior Boeing engineer keeps substantially more than peer-state CA equivalents paying 13.3% — a $33K/year delta. WA Cares Fund 0.58% capped at $870/year is the only WA state-level wage tax.
Sources & Methodology
- →IRS Rev. Proc. 2025-32 — 2026 federal brackets and standard deduction
- →IRS Notice 2025-67 — 2026 retirement-plan contribution limits
- →IRS Rev. Proc. 2025-19 — 2026 HSA contribution limits
- →Social Security Administration — 2026 Social Security wage base
- →BLS Occupational Employment and Wage Statistics — Mechanical Engineer wage data for Washington
Salary figures are market estimates for Mechanical Engineers in Washington and vary by employer, specialty, seniority, and metro. Take-home math assumes a single filer with no dependents, the standard deduction, and no state income tax (Washington levies none). Local taxes, insurance premiums, and pre-tax contributions will move your number — run the calculator for your own situation.
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