The median annual wage for Chemical Plant and System Operators in California is $88,280 (May 2024 BLS OES). The mean (average) is $88,770.
Pay spans roughly $73,070 at the 10th percentile to $108,420 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $42.44 per hour. An estimated 590 people work as chemical plant and system operators in California.
| Median (annual) | $88,280 |
| Mean (annual) | $88,770 |
| Median (hourly) | $42.44 |
| 10th percentile | $73,070 |
| 90th percentile | $108,420 |
| Employment | 590 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.