Last updated: 2025 BLS data · Page refreshed:
How does Stationary Engineers and Boiler Operators salary grow from entry-level to senior in California? State salary progression based on 2025 BLS data.
173% career growth potentialData: BLS OEWS 2025 • California salary data • Updated 2026-05-19
The salary range for Stationary Engineers and Boiler Operators in California spans from $48,610 at entry-level to $132,730 at senior level — a difference of $84,120 per year.
Senior Stationary Engineers and Boiler Operatorss in California earn $84,120 more per year than entry-level professionals.
Complete percentile breakdown showing how Stationary Engineers and Boiler Operators salary increases with experience in California, from entry-level (10th percentile) to senior (90th percentile).
| Experience Level | Percentile | Annual Salary | Monthly | Hourly |
|---|---|---|---|---|
| Entry-Level | P10 | $48,610 | $4,051 | $23.37 |
| Early Career | P25 | $61,860 | $5,155 | $29.74 |
| Mid-Career | Median | $90,650 | $7,554 | $43.58 |
| Experienced | P75 | $120,350 | $10,029 | $57.86 |
| Senior / Expert | P90 | $132,730 | $11,061 | $63.81 |
Stationary Engineers and Boiler Operators in California shows strong salary progression over a career. Entry-level professionals start around $48,610, while senior-level professionals earn $132,730 — a 173% increase. The biggest salary jump typically occurs between mid-career ($90,650) and experienced level ($120,350), suggesting that specialization and leadership responsibilities are the key drivers of higher pay.
Where does California rank for Stationary Engineers and Boiler Operators senior-level salaries? Compare California's P90 pay to other top-paying states.
Entry-level Stationary Engineers and Boiler Operatorss (10th percentile) earn approximately $48,610 per year, or $4,050 per month. Early-career professionals (25th percentile) earn around $61,860. Based on 2025 BLS OEWS data across all U.S. states.
Senior Stationary Engineers and Boiler Operatorss (90th percentile) earn approximately $132,730 per year. Experienced professionals (75th percentile) earn around $120,350. This represents a career premium of 173% over entry-level pay.
The career salary growth potential for Stationary Engineers and Boiler Operatorss is 173%. Entry-level professionals start at $48,610, while senior-level can earn up to $132,730 — a difference of $84,120 per year.
The highest-paying state for senior Stationary Engineers and Boiler Operatorss is California, where 90th-percentile salaries reach $132,730 per year. See the full state-by-state comparison above.
We use BLS Occupational Employment and Wage Statistics (OEWS) 2025 data. The 10th percentile (P10) approximates entry-level pay — the salary that 90% of workers earn more than. The 90th percentile (P90) approximates senior/expert-level pay — only 10% of workers earn above this threshold. National averages are computed across all reporting U.S. states.
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Salary percentile data for California from the U.S. Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics (OEWS), May 2025. P10 approximates entry-level compensation; P90 approximates senior/expert-level compensation. State averages differ from national averages due to regional variations in cost of living, demand, and workforce composition. Actual salaries vary based on employer, experience, education, certifications, and specific location within California.
Our Methodology · Data Sources · Source: BLS OEWS