Plumber Salary in Michigan 2026,
$80,190 Median | BLS Data by City

A median $80,190 a year, or $38.56 an hour, per BLS OEWS May 2025 — 25.7% above the national median of $63,800, one of the largest trade premiums in this data. The band runs $46,560 at the 10th percentile to $103,430 at the 90th, with the middle half between $58,090 and $95,390.

Kalamazoo-Portage at $90,730, then Detroit-Warren-Dearborn $86,370, Jackson $81,930, Monroe $80,700 and Flint $80,510. A mid-sized market topping the state's largest metro is an industrial signal — process and high-purity piping work in pharmaceutical and manufacturing plants pays above conventional plumbing.

Through the Plumbing Division of the Department of Licensing and Regulatory Affairs, which runs a genuine statutory ladder. Apprentices register with the state and accumulate documented supervised hours; the journey plumber licence follows an examination; the master plumber licence requires journey experience and a further examination; and a plumbing contractor licence is what permits a business to contract for plumbing work in its own name. Each rung carries legal authority over what work may be performed and supervised.

Because the occupational code includes pipefitting and steamfitting, and Michigan buys a lot of it. Pharmaceutical, food processing, chemical, energy and automotive plants across the state require process piping installation and maintenance, much of it on scheduled shutdowns at premium rates. That industrial component lifts the state 25.7% above the $63,800 national median and is why Kalamazoo-Portage at $90,730 outranks Detroit. Residential plumbing alone would not produce these figures.

Industrial process piping — pharmaceutical high-purity systems, chemical and energy plant work, and shutdown and outage maintenance — together with master licensure and foreman responsibility. That combination is what the $95,390 seventy-fifth percentile and $103,430 ninetieth describe. Shutdown work in particular concentrates a large amount of premium-rate hours into short periods, and Michigan's flat 4.25% state rate means those hours are not taxed at a higher marginal rate.

Because the work there is process piping rather than plumbing. Kalamazoo-Portage at $90,730 sits in a market with substantial pharmaceutical and advanced manufacturing capacity, and the piping systems in those plants — high-purity, sanitary, chemical and process lines — require qualifications, procedures and documentation that domestic and commercial plumbing does not. Detroit-Warren-Dearborn at $86,370 has the state's largest construction market and a strong industrial base of its own. What both illustrate is that SOC 47-2152 is really two trades, and the industrial one pays more.

The code pools plumbers with pipefitters and steamfitters, whose markets and qualifications differ substantially, which is much of why the band runs from $46,560 to $103,430. It also pools every licence tier from registered apprentice to master. And OEWS reports annual wages in a trade where shutdown and outage overtime can swing a year's earnings considerably at the same hourly rate — so part of the spread is hours rather than pay.

Licence tier first — journey, then master, each carrying legal authority that determines what work can be performed and supervised. Sector second: industrial and process piping pays above residential and commercial plumbing, which is what the Kalamazoo-Portage figure demonstrates. Shutdown and outage availability third, since that is where the premium hours are and Michigan's flat tax leaves them intact. And contractor licensure fourth, which moves a plumber from wages into business income taxed at the same flat 4.25% rate.