The median annual wage for Stationary Engineers and Boiler Operators in Chicago-Naperville-Elgin, IL-IN is $112,230 (May 2024 BLS OES). The mean (average) is $105,880.
Pay spans roughly $75,120 at the 10th percentile to $121,200 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $53.96 per hour. An estimated 1,170 people work as stationary engineers and boiler operators in Chicago-Naperville-Elgin, IL-IN.
| Median (annual) | $112,230 |
| Mean (annual) | $105,880 |
| Median (hourly) | $53.96 |
| 10th percentile | $75,120 |
| 90th percentile | $121,200 |
| Employment | 1,170 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.