Stationary Engineers and Boiler Operators salary in Maryland
Stationary Engineers and Boiler Operators in Maryland earn a median of $85,240 a year ($40.98 an hour), based on BLS data for 850 workers.
Pay ranges from $57,190 for the lowest-paid 10% to $107,890 for the top 10%. That is 8% higher than the national median of $78,620. Maryland ranks 10th of 51 states for stationary engineers and boiler operators pay. There are 0.31 stationary engineers and boiler operators per 1,000 jobs here — the job is 1.7× more common than nationally. The average (mean) salary is $85,940, above the median because a few high earners pull it up.
Pay range for stationary engineers and boiler operators in Maryland
| Pay level | Yearly | Hourly |
|---|---|---|
| 10th percentile (entry level) | $57,190 | $27.49 |
| 25th percentile | $73,930 | $35.54 |
| Median | $85,240 | $40.98 |
| 75th percentile | $95,230 | $45.78 |
| 90th percentile (top earners) | $107,890 | $51.87 |
| Average (mean) | $85,940 | $41.32 |
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 | $7,103.33 |
| Semi-monthly (24 a year) | $3,551.67 |
| Biweekly (26 a year) | $3,278.46 |
| Weekly | $1,639.23 |
| Hourly | $40.98 |
Based on a full-time year of 2,080 hours. Convert any amount with the hourly to salary converter.
Stationary Engineers and Boiler Operators salary in cities in Maryland
| Metro area | Median salary | Workers |
|---|---|---|
| Washington-Arlington-Alexandria, DC-VA-MD-WV | $91,480 | 970 |
| Baltimore-Columbia-Towson, MD | $83,530 | 410 |
| Philadelphia-Camden-Wilmington, PA-NJ-DE-MD | $79,720 | 740 |
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 Maryland
| Job | Median salary | Hourly |
|---|---|---|
| Water and Wastewater Treatment Plant and System Operators | $61,870 | $29.75 |
| Power Plant Operator | $111,260 | $53.49 |
| Chemical Plant and System Operators | $95,150 | $45.75 |
| Plant and System Operators, All Other | $81,890 | $39.37 |
| Gas Plant Operator | $102,950 | $49.49 |
| Petroleum Pump System Operators, Refinery Operators, and Gaugers | $78,580 | $37.78 |
| Power Distributors and Dispatchers | $113,660 | $54.64 |
| Miscellaneous Assemblers and Fabricators | $45,450 | $21.85 |
| First-Line Supervisors of Production and Operating Workers | $78,520 | $37.75 |
| Inspectors, Testers, Sorters, Samplers, and Weighers | $61,790 | $29.71 |
| Laundry and Dry-Cleaning Workers | $34,710 | $16.69 |
| Packaging and Filling Machine Operators and Tenders | $43,670 | $21.00 |
| Welders, Cutters, Solderers, and Brazers | $60,310 | $29.00 |
| Baker | $37,040 | $17.81 |
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 Maryland?
The median salary for stationary engineers and boiler operators in Maryland is $85,240 a year, or $40.98 an hour. Pay ranges from $57,190 for the lowest-paid 10% to $107,890 for the top 10%.
How much do the highest-paid stationary engineers and boiler operators make in Maryland?
The top 10% of stationary engineers and boiler operators in Maryland earn at least $107,890 a year. The top 25% earn $95,230 or more.
What is the starting pay for stationary engineers and boiler operators in Maryland?
Entry-level pay (the 10th percentile) is about $57,190 a year, and a quarter of stationary engineers and boiler operators earn $73,930 or less.
How many stationary engineers and boiler operators work in Maryland?
About 850 stationary engineers and boiler operators are employed in Maryland, not counting the self-employed.