Stationary Engineers and Boiler Operators · SOC 51-8021
Stationary Engineers and Boiler Operators Salary in the California
Source: BLS OEWS, May 2025California
Figures describe the state of California as a whole.
Stationary Engineers and Boiler Operators in the California earned a median of $90,650 per year ($43.58 per hour) as of the May 2025 BLS OEWS estimates. Pay ranged from $48,610 at the 10th percentile to $132,730 at the 90th. BLS estimates 5,840 people work in this occupation in the area.
Pay distribution
Half of Stationary Engineers and Boiler Operators in the California earn more than $90,650 per year, half earn less; the middle half earn between $61,860 and $120,350.
| Wage | 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|---|
| Annual | $48,610 | $61,860 | $90,650 | $120,350 | $132,730 |
| Hourly | $23.37 | $29.74 | $43.58 | $57.86 | $63.81 |
A percentile is a cut point: 25% of workers in this occupation and area earn less than the 25th-percentile wage. The median is the 50th percentile — half earn less, half earn more.
How this area compares
- California$90,650 median for California; middle half earns $61,860 to $120,350
- United Statesnational$78,620 median for United States; middle half earns $63,160 to $101,150
Bars span the 25th–75th percentile (the middle half of workers); the tick marks the median.
The median here is +15% vs the U.S. median for this occupation.
Metro areas in California
Metro areas in the same state with published May 2025 medians for stationary engineers and boiler operators, highest first. Areas without published estimates are not listed.
- Californiathis page$90,650 median for California; middle half earns $61,860 to $120,350
- $129,930 median for San Francisco metro area; middle half earns $101,550 to $135,660
- $123,170 median for San Jose metro area; middle half earns $86,400 to $148,280
- $123,170 median for Vallejo metro area; middle half earns $103,690 to $132,100
- $103,690 median for Stockton metro area; middle half earns $94,410 to $120,700
- $99,840 median for Sacramento metro area; middle half earns $74,470 to $120,940
- $96,150 median for El Centro metro area; middle half earns $66,300 to $107,640
Bars span the 25th–75th percentile (the middle half of workers); the tick marks the median.
Keep exploring
Other occupations in the same SOC group with published medians here, largest employment first:
Highest-paying metro areas for stationary engineers and boiler operatorss · Highest-paying occupations in California
About this estimate
These figures are survey estimates from the BLS Occupational Employment and Wage Statistics program — modeled from employer reports collected over three years and benchmarked to May 2025. They describe what employers in this area currently pay across all industries, not what any individual worker will be offered.
Employment counts wage-and-salary jobs in the occupation (self-employed workers are excluded). Estimates carry sampling error; percentile wages are rounded by BLS. Some values are suppressed by BLS for confidentiality or quality — suppressed values appear here as “not published”, never as zero. Read the full methodology.
About this data. Estimates are from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics program, May 2025 release, retrieved from bls.gov/oes/tables.htm on July 24, 2026. OEWS estimates describe metropolitan/nonmetropolitan areas and states — not city limits — and are not designed for year-over-year comparisons. See BLS methodology, our plain-English methodology, and sources. CitySalaryData is independent and not affiliated with BLS.