Stationary Engineers and Boiler Operators Salary — US State Breakdown (2025)
✓ Sourced directly from BLS OES · Checked for accuracy at every rebuild · Last updated: 2026-09-02
BLS OES May 2025 · SOC 51-8021As an Amazon Associate we earn from qualifying purchases. Links below are affiliate links.
US Salary Overview
The national median wage for stationary engineers and boiler operators in the United States is $78,620 per year (gross, before tax), based on BLS Occupational Employment and Wage Statistics (May 2025). Around 28,000 people are employed in this occupation nationally. UK data is not available for this occupation — the UK's SOC 2020 classification has no direct equivalent. Signing an offer? Employment contract templates at LawDepot cover offer letters, NDAs and employment agreements.
US Salary Percentiles
| Percentile | Annual (gross) | Notes |
|---|---|---|
| 10th | $50,590 | Entry level / lowest decile |
| 25th | $63,160 | Early career |
| 50th (median) | $78,620 | Typical pay |
| 75th | $101,150 | Experienced |
| 90th | $125,390 | Senior / highest decile |
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Start $1 Trial →Median Salary by State
| State | Median salary | Mean salary | Employment |
|---|---|---|---|
| Illinois | $115,780 | $106,410 | 2,000 |
| Wyoming | $111,920 | $102,500 | 100 |
| Hawaii | $103,400 | $94,580 | 70 |
| Connecticut | $94,870 | $91,990 | 270 |
| New York | $94,070 | $101,070 | 4,000 |
| Washington | $91,530 | $95,180 | 520 |
| California | $90,650 | $91,010 | 6,000 |
| District of Columbia | $90,470 | $89,400 | 620 |
| Alaska | $88,330 | $90,660 | 90 |
| Maryland | $85,240 | $85,940 | 850 |
| Michigan | $82,800 | $77,930 | 490 |
| Colorado | $81,310 | $78,280 | 560 |
| Massachusetts | $80,800 | $82,450 | 530 |
| Nevada | $79,110 | $88,360 | 60 |
| Montana | $77,690 | $77,000 | 110 |
| Delaware | $77,630 | $79,820 | 40 |
| New Jersey | $76,560 | $77,280 | 1,000 |
| Utah | $76,490 | $78,280 | 110 |
| Minnesota | $75,850 | $77,730 | 1,000 |
| Ohio | $75,470 | $74,120 | 760 |
| Arizona | $75,410 | $82,710 | 80 |
| New Mexico | $74,480 | $77,170 | 100 |
| Pennsylvania | $72,900 | $70,990 | 2,000 |
| South Carolina | $72,650 | $71,920 | 170 |
| Missouri | $72,620 | $68,950 | 380 |
| Tennessee | $72,470 | $65,300 | 370 |
| Georgia | $70,640 | $70,740 | 240 |
| Oklahoma | $68,450 | $72,600 | 180 |
| Vermont | $68,400 | $65,530 | 70 |
| South Dakota | $68,090 | $64,300 | 90 |
| Oregon | $67,630 | $71,860 | 330 |
| Indiana | $67,560 | $70,040 | 290 |
| Iowa | $67,450 | $67,030 | 190 |
| Kentucky | $66,770 | $62,810 | 90 |
| North Dakota | $66,760 | $73,950 | 140 |
| New Hampshire | $66,180 | $68,830 | 60 |
| Florida | $65,040 | $66,750 | 170 |
| Nebraska | $64,930 | $67,060 | 290 |
| Kansas | $64,490 | $66,870 | 120 |
| Idaho | $64,460 | $66,500 | 120 |
| Virginia | $64,150 | $64,680 | 350 |
| Texas | $63,810 | $66,890 | 890 |
| Rhode Island | $63,330 | $69,050 | 60 |
| Maine | $62,910 | $64,900 | 290 |
| Wisconsin | $61,170 | $62,330 | 270 |
| North Carolina | $60,860 | $59,430 | 220 |
| Arkansas | $58,000 | $57,250 | 200 |
| Mississippi | $53,640 | $59,070 | 200 |
| Alabama | $53,470 | $57,630 | 220 |
| West Virginia | $53,340 | $53,230 | 40 |
| Puerto Rico | $51,320 | $52,640 | 70 |
| Louisiana | $47,750 | $57,830 | 290 |
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Frequently Asked Questions
What is the average salary for a stationary engineers and boiler operators in the US?
The US national median wage for stationary engineers and boiler operators is $78,620 per year (gross, before tax), based on BLS Occupational Employment and Wage Statistics (May 2025).
What is the pay range for stationary engineers and boiler operators in the US?
Pay ranges from $50,590 at the 10th percentile to $125,390 at the 90th percentile. This difference typically reflects experience level, employer size, and location.
Which US states pay stationary engineers and boiler operators the most?
The highest-paying states for stationary engineers and boiler operators include Illinois ($115,780), Wyoming ($111,920), Hawaii ($103,400). Pay varies by state due to cost of living, local demand and industry concentration.
How much does stationary engineers and boiler operators salary vary by state?
The gap between the highest- and lowest-paying states is significant — Illinois ($115,780) pays roughly 142% more than Louisiana ($47,750). Check the state breakdown above for the exact figure in your location.
Data: BLS OES, May 2025 · Page built 2026-09-02