Plumber vs Mechanical Engineer Salary
Mechanical Engineers earn approximately 57.4% more than Plumbers nationally — $96,000 vs $61,000.
Plumber vs Mechanical Engineer: salary breakdown
On a national-median basis, Mechanical Engineers out-earn Plumbers by $35,000 per year — a 57.4% gap. That works out to roughly $2,917/month or $17/hour of difference.
Important context: these are MEDIANS — the middle salary in the country. Real-world variation is wide: entry-level roles in either career may pay 25-35% below median, while senior roles or specialized niches can pay 50-100%+ above. Your specific numbers depend on experience, location, employer, and credentials.
When does the salary gap matter most?
For someone choosing between these careers, the $35,000 annual difference compounds:
- Over 10 years: ~$350,000 in raw salary difference
- Over 40 years: ~$1,400,000 (without raises or compounding)
- With 3% annual raises: the gap typically grows because the higher-paid role's raises are also larger in dollar terms
- With investment compounding: the $35,000/year extra invested at 7% over 40 years grows to roughly $6,965,000 — significantly more than the raw difference
But salary isn't everything. Job satisfaction, work-life balance, growth potential, and career switching costs all matter. A career you can sustain for decades beats a higher-paying one you'll burn out on.
By state and city — significant variation
National medians are starting points. Real salaries vary 30%+ by location:
- Plumber in California ≈ $71,980 (1.18× national)
- Plumber in Mississippi ≈ $51,240 (0.84× national)
- Mechanical Engineer in California ≈ $113,280
- Mechanical Engineer in Mississippi ≈ $80,640
Use our Plumber salary by state pages to drill into specific locations.
Other comparisons in Trades
Other comparisons in Engineering
Related tools
Plumber salary by state — Mechanical Engineer salary by state — Best cities for Plumber — Best cities for Mechanical Engineer — Paycheck Calculator — Investment Calculator.