Stationary Engineers and Boiler Operators Salary in St. Louis, MO-IL

BLS Occupational Employment & Wage Statistics • May 2025 • St. Louis, MO-IL

Median annual salary $75,020 -0.2% vs national
Median hourly $36.07
10th percentile $54,040
90th percentile $93,690
Employed locally 240
National median $75,190

Compare Stationary Engineers and Boiler Operators salary & buying power

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Stationary Engineers and Boiler Operators
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St. Louis, MO-IL
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    Salary percentile breakdown

    10th
    $54,040
    25th
    $62,160
    50th (median)
    $75,020
    75th
    $85,960
    90th
    $93,690

    St. Louis economic context

    Unemployment rate 3.70% 2024 annual avg • BLS LAUS
    Median household income $78,225 2023 • Census ACS
    Stationary Engineers and Boiler Operators salary vs area income 96% Median Stationary Engineers and Boiler Operators salary is 4% below the area median household income

    Top-paying metros for Stationary Engineers and Boiler Operators

    Metro areaMedian salary
    San Francisco-Oakland-Fremont, CA $124,120
    San Jose-Sunnyvale-Santa Clara, CA $119,310
    Vallejo, CA $119,310
    South Illinois nonmetropolitan area $117,770
    Springfield, IL $117,590
    West Central Illinois nonmetropolitan area $116,610

    Nearby metros — Stationary Engineers and Boiler Operators salary comparison

    Metro areaMedian salary
    San Francisco-Oakland-Fremont, CA $124,120
    Modesto, CA $101,980
    Davenport-Moline-Rock Island, IA-IL $89,500
    Baltimore-Columbia-Towson, MD $82,320
    Kansas City, MO-KS $79,800
    North Valley-Northern Mountains Region of California nonmetropolitan area $72,420

    Related occupations in St. Louis, MO-IL

    OccupationMedian salary
    Miscellaneous Assemblers and Fabricators $43,790
    First-Line Supervisors of Production and Operating Workers $75,210
    Machinists $60,850
    Inspectors, Testers, Sorters, Samplers, and Weighers $51,530
    Packaging and Filling Machine Operators and Tenders $44,780
    Production Workers, All Other $39,610

    Frequently asked questions

    How much do Stationary Engineers and Boiler Operators make per hour in St. Louis?

    The median hourly wage for Stationary Engineers and Boiler Operators in St. Louis, MO-IL is $36.07, based on BLS OEWS 2025 data. Top earners (90th percentile) make $46.51 or more per hour.

    Is St. Louis above or below average for Stationary Engineers and Boiler Operators salaries?

    The median Stationary Engineers and Boiler Operators salary in St. Louis, MO-IL is 0.2% below the national median of $75,190. The national figure is from BLS OEWS 2025 data covering all US metropolitan areas.

    What is the entry-level salary for Stationary Engineers and Boiler Operators in St. Louis?

    Entry-level Stationary Engineers and Boiler Operators (10th percentile) earn around $54,040 per year in St. Louis, MO-IL. The 25th percentile — typically workers with 1–3 years of experience — earn approximately $62,160.