How much do plumbers make in Missouri in 2026?

The median plumber salary in Missouri is $66,790 per year, which works out to roughly $32.11 an hour based on a standard 2,080-hour work year. That number comes from BLS Occupational Employment and Wage Statistics (OEWS), released May 2025, and reflects what a typical working plumber earns — not a starting wage and not a top-end number.

The bottom quarter of Missouri plumbers — those just getting started, working smaller markets, or still building a specialty — earn up to $50,640 a year, or about $24.35 an hour. The top quarter clears $100,240 or more annually, which is roughly $48.19 an hour. That's nearly double what the lower end earns. The spread tells you something important: in plumbing, experience and specialization move the needle more than almost anything else.

Entry-level plumbers in Missouri often start as apprentices, earning a percentage of journeyman wages while they log their required hours. Missouri requires a license to work as a journeyman or master plumber, and the path typically involves completing an apprenticeship — usually four to five years — along with passing a state-approved exam. The licensing requirement creates a real barrier to entry, which is part of why journeyman and master plumbers command stronger wages than in trades with no licensure requirement.

Geography matters inside Missouri. The St. Louis metro and Kansas City metro areas tend to offer stronger wages than rural parts of the state. Commercial and industrial plumbing work — think large-scale mechanical systems, new construction, or industrial process piping — generally pays more than residential service work. A plumber who focuses on medical gas systems, fire suppression, or high-purity process piping can command rates well above the median.

Overtime is a real factor in this trade. Missouri plumbers working construction often put in 50-plus hour weeks during busy stretches, particularly in spring and summer when new construction ramps up. If a plumber at the median wage of $32.11 an hour works 10 hours of overtime per week at 1.5x pay, that adds roughly $25,000 to annual gross earnings over a full year — enough to push a median earner into the upper-quartile range on paper.

Some plumbers in Missouri work under collective bargaining agreements. If you're covered by a union contract, your actual wage and benefit package is set by that agreement. Check directly with your local's contract for the specific scale, because BLS data blends union and non-union workers together and doesn't break out those figures separately here.

Master plumbers who move into running their own shop or taking on estimating and project management roles frequently earn above the 75th percentile. The $100,240 figure for the top quarter likely undercounts what self-employed plumbers net in a strong year, since BLS OEWS captures employee wages and may not fully reflect owner-operator income.

If you want to move up the pay scale, the clearest levers are: earning your master plumber license, developing a specialty in commercial or industrial work, moving to a higher-demand metro area, or taking on lead or foreman responsibilities. Each of those steps has historically moved Missouri plumbers from one quartile to the next.