What are the highest-paying metros for plumbers? Chicago and West Coast metros top plumber pay, with strong union presence driving the top of the list.
Top 10 metropolitan areas by mean annual wage for plumbers (Source: BLS OEWS May 2025 metro estimates):
| Metro Area | Mean Annual Wage |
|---|
| Chicago-Naperville-Elgin, IL-IN-WI | $104,820 |
| San Francisco-Oakland-Fremont, CA | $98,940 |
| Portland-Vancouver-Hillsboro, OR-WA | $96,710 |
| Seattle-Tacoma-Bellevue, WA | $93,820 |
| Boston-Cambridge-Newton, MA-NH | $89,310 |
| Minneapolis-St Paul-Bloomington, MN-WI | $87,940 |
| New York-Newark-Jersey City, NY-NJ-PA | $86,210 |
| Los Angeles-Long Beach-Anaheim, CA | $84,930 |
| Milwaukee-Waukesha-West Allis, WI | $83,420 |
| Hartford-East Hartford-Middletown, CT | $81,710 |
Chicago tops metro plumber pay at $104,820 mean - well above the national mean - driven by UA Local 130's strong union scale. San Francisco, Portland, and Seattle round out the top four. All top-10 metros have above-average union density or above-average cost-of-living adjustment.
How much more does a master plumber earn than a journeyman? Master plumbers typically earn 15-25% above journeyman pay, with the largest premiums in commercial work.
The journeyman-to-master plumber pay step is one of the largest wage jumps in the skilled trades. Master plumbers, who can pull permits, supervise crews, and run their own contracting businesses, typically earn 15-25% above journeyman wages (Source: UA Local Union wage data, 2025).
The premium stacks higher in commercial and industrial settings, where master plumbers move into foreman, general foreman, and project-superintendent roles. The premium is smallest in residential service work, where journeyman productivity and customer relationships often outpace master credentials on revenue.
For a plumber evaluating the master license, the math is straightforward: the four-year apprenticeship + 2-4 year journeyman phase + master exam = 6-8 years to top-of-scale pay. In UA markets, the journeyman-to-master step typically moves total comp from $80K-$95K to $100K-$130K depending on hours and overtime.
How much more do union plumbers earn? United Association (UA) union plumbers typically earn 20-30% above non-union pay, with stronger benefits and pensions.
The union-versus-non-union pay gap in plumbing work is one of the widest in the skilled trades. UA Local unions negotiate wages, benefits, and pensions through collective bargaining with mechanical-contractor associations. The negotiated wage scales run 20-30% above non-union pay in the same metro (Source: UA, 2025).
Beyond base pay, UA members typically receive employer-paid health insurance, defined-benefit pension contributions (often $4-$8/hour worked), and access to apprenticeship training that non-union employers struggle to match. The trade-off: UA employment follows work availability, with periodic layoffs during commercial-construction slowdowns.
For new apprentices, joining a UA apprenticeship program typically costs nothing - the program is funded by mechanical-contractor contributions - and provides structured classroom instruction, paid OJT hours, and direct path to journeyman licensure. The application process is competitive in dense metros.
Is plumber demand growing in 2026? Plumber employment is projected to grow 4.5% from 2024 to 2034, with about 44,000 openings per year.
BLS OOH projects plumber employment to grow 4.5% from 2024 to 2034, about in line with the 3.1% all-occupations baseline (Source: BLS OOH, 2024-34). About 44,000 openings are projected per year from growth, occupational transfers, and labor-force exits.
The growth drivers are well established. Aging housing stock requires more service and replacement work - the average U.S. home is now 40+ years old, with plumbing systems reaching end-of-life replacement windows. Water-efficiency regulations are driving fixture and pipe upgrades. And the labor supply is constrained: the average plumber is over 45, and apprenticeship completion rates have not kept pace with retirement.
Service and repair work - the largest employer segment - is less cyclical than new construction. Plumbing remains one of the more recession-resistant skilled trades, with steady demand through housing downturns.
What industries pay plumbers the most? Utility, manufacturing, and government employers top the industry pay list for plumbers.
BLS OEWS breaks plumber pay down by industry of employment. Mean annual wages by industry (Source: BLS OEWS May 2025):
| Industry | Mean Annual Wage | vs National Mean |
|---|
| Electric power generation, transmission, and distribution | $89,940 | +41% |
| Natural gas distribution | $85,210 | +34% |
| Federal executive branch | $82,930 | +30% |
| Petroleum and coal products manufacturing | $80,210 | +26% |
| Chemical manufacturing | $77,940 | +22% |
| Semiconductor and electronic component manufacturing | $74,820 | +17% |
| Nonresidential building construction | $66,940 | +5% |
| Plumbing and HVAC contractors | $61,210 | -4% |
| Residential building construction | $52,820 | -17% |
Utility plumbers and pipefitters earn the highest industry mean at $89,940 - driven by specialized high-pressure training and overtime-heavy on-call rotations. Federal government follows at $82,930, with strong benefits and pension contributions. Residential construction pays the lowest industry mean at $52,820 - the entry point for many new apprentices.
How should a plumber compare job offers? Compare on base wage + benefits + pension + schedule + overtime opportunity, not just headline pay.
Two plumber offers can look identical on hourly wage and differ by $20K+ in annual take-home. Build the comparison on six columns: base hourly wage, health insurance premium and deductible structure, retirement plan (401(k) match versus defined-benefit pension), overtime availability and premium rates, schedule stability, and continuing-education or licensing-cost support.
For union (UA) offers, the pension contribution is often the most underweighted column. A UA pension that contributes $5/hour worked - typical of strong locals - over a 30-year career accumulates to $400K+ in present-value retirement income. Always ask for the local's pension contribution rate before comparing.
For non-union offers, overtime availability is the swing variable. A $32/hour non-union residential role with cap on overtime can fall behind a $28/hour commercial role with unlimited OT at 1.5x. Always ask about the employer's typical weekly hours and seasonal overtime pattern.
Methodology and sources
This guide aggregates three datasets: BLS Occupational Outlook Handbook for occupation-level wage percentile data and 2024-34 growth projections; BLS OEWS May 2025 release for state, metro, and industry mean wages (occupation code 47-2152); and UA Local Union wage data for union-versus-non-union premium analysis. All currency in USD. Verify current pay and licensing rules with the official source before making career decisions.
Fazlur Rahman
