Stationary Engineers and Boiler Operators salary in Missouri
Stationary Engineers and Boiler Operators in Missouri earn a median of $72,620 a year ($34.91 an hour), based on BLS data for 380 workers.
Pay ranges from $49,920 for the lowest-paid 10% to $85,070 for the top 10%. That is 8% lower than the national median of $78,620. Missouri ranks 25th of 51 states for stationary engineers and boiler operators pay. There are 0.13 stationary engineers and boiler operators per 1,000 jobs here — the job is less common than nationally (location quotient 0.72). The average (mean) salary is $68,950, close to the median.
Pay range for stationary engineers and boiler operators in Missouri
| Pay level | Yearly | Hourly |
|---|---|---|
| 10th percentile (entry level) | $49,920 | $24.00 |
| 25th percentile | $60,520 | $29.10 |
| Median | $72,620 | $34.91 |
| 75th percentile | $77,970 | $37.49 |
| 90th percentile (top earners) | $85,070 | $40.90 |
| Average (mean) | $68,950 | $33.15 |
Half of stationary engineers and boiler operators earn more than the median and half earn less. Percentiles show the spread: 10% earn less than the 10th percentile, and 10% earn more than the 90th.
Median paycheck, before taxes
| Pay period | Amount |
|---|---|
| Monthly | $6,051.67 |
| Semi-monthly (24 a year) | $3,025.83 |
| Biweekly (26 a year) | $2,793.08 |
| Weekly | $1,396.54 |
| Hourly | $34.91 |
Based on a full-time year of 2,080 hours. Convert any amount with the hourly to salary converter.
Buying a home? On a $72,620 salary, see how much house you can afford in Missouri at today's mortgage rates, or work out a payment with the mortgage calculator.
Stationary Engineers and Boiler Operators salary in cities in Missouri
| Metro area | Median salary | Workers |
|---|---|---|
| St. Louis, MO-IL | $75,610 | 240 |
| Kansas City, MO-KS | $74,540 | 40 |
| Springfield, MO | $51,090 | 30 |
Highest-paying states for stationary engineers and boiler operators
| State | Median salary |
|---|---|
| Illinois | $115,780 |
| Wyoming | $111,920 |
| Hawaii | $103,400 |
| Connecticut | $94,870 |
| New York | $94,070 |
| Washington | $91,530 |
| California | $90,650 |
| District of Columbia | $90,470 |
| Alaska | $88,330 |
| Maryland | $85,240 |
See Stationary Engineers and Boiler Operators pay in every state.
Related jobs in Missouri
| Job | Median salary | Hourly |
|---|---|---|
| Water and Wastewater Treatment Plant and System Operators | $49,940 | $24.01 |
| Chemical Plant and System Operators | $55,470 | $26.67 |
| Plant and System Operators, All Other | $51,560 | $24.79 |
| Gas Plant Operator | $87,820 | $42.22 |
| Petroleum Pump System Operators, Refinery Operators, and Gaugers | $80,960 | $38.92 |
| Power Distributors and Dispatchers | $105,450 | $50.70 |
| Power Plant Operator | $101,900 | $48.99 |
| Miscellaneous Assemblers and Fabricators | $46,480 | $22.35 |
| First-Line Supervisors of Production and Operating Workers | $73,210 | $35.20 |
| Packaging and Filling Machine Operators and Tenders | $48,070 | $23.11 |
| Inspectors, Testers, Sorters, Samplers, and Weighers | $54,420 | $26.17 |
| Welders, Cutters, Solderers, and Brazers | $51,950 | $24.98 |
| Machinist | $58,710 | $28.23 |
| Production Workers, All Other | $38,470 | $18.50 |
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025 estimates, occupation code 51-8021. Wages include base pay, tips, commissions and shift pay, but not overtime, bonuses or benefits, and exclude the self-employed.
Frequently asked questions
How much does a stationary engineers and boiler operators make in Missouri?
The median salary for stationary engineers and boiler operators in Missouri is $72,620 a year, or $34.91 an hour. Pay ranges from $49,920 for the lowest-paid 10% to $85,070 for the top 10%.
How much do the highest-paid stationary engineers and boiler operators make in Missouri?
The top 10% of stationary engineers and boiler operators in Missouri earn at least $85,070 a year. The top 25% earn $77,970 or more.
What is the starting pay for stationary engineers and boiler operators in Missouri?
Entry-level pay (the 10th percentile) is about $49,920 a year, and a quarter of stationary engineers and boiler operators earn $60,520 or less.
How many stationary engineers and boiler operators work in Missouri?
About 380 stationary engineers and boiler operators are employed in Missouri, not counting the self-employed.