The median annual wage for Water and Wastewater Treatment Plant and System Operators in Missoula, MT is $64,460 (May 2024 BLS OES). The mean (average) is $62,960.
Pay spans roughly $43,060 at the 10th percentile to $78,860 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $30.99 per hour. An estimated 50 people work as water and wastewater treatment plant and system operators in Missoula, MT.
| Median (annual) | $64,460 |
| Mean (annual) | $62,960 |
| Median (hourly) | $30.99 |
| 10th percentile | $43,060 |
| 90th percentile | $78,860 |
| Employment | 50 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.