The median annual wage for Chemical Plant and System Operators in Washington is $58,280 (May 2024 BLS OES). The mean (average) is $76,420.
Pay spans roughly $48,150 at the 10th percentile to $107,790 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $28.02 per hour. An estimated 220 people work as chemical plant and system operators in Washington.
| Median (annual) | $58,280 |
| Mean (annual) | $76,420 |
| Median (hourly) | $28.02 |
| 10th percentile | $48,150 |
| 90th percentile | $107,790 |
| Employment | 220 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.