The median annual wage for Water and Wastewater Treatment Plant and System Operators in Idaho is $53,250 (May 2024 BLS OES). The mean (average) is $54,390.
Pay spans roughly $39,540 at the 10th percentile to $71,720 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $25.60 per hour. An estimated 1,110 people work as water and wastewater treatment plant and system operators in Idaho.
| Median (annual) | $53,250 |
| Mean (annual) | $54,390 |
| Median (hourly) | $25.60 |
| 10th percentile | $39,540 |
| 90th percentile | $71,720 |
| Employment | 1,110 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.