The median annual wage for Water and Wastewater Treatment Plant and System Operators in Iowa is $59,400 (May 2024 BLS OES). The mean (average) is $58,580.
Pay spans roughly $45,650 at the 10th percentile to $73,960 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $28.56 per hour. An estimated 2,460 people work as water and wastewater treatment plant and system operators in Iowa.
| Median (annual) | $59,400 |
| Mean (annual) | $58,580 |
| Median (hourly) | $28.56 |
| 10th percentile | $45,650 |
| 90th percentile | $73,960 |
| Employment | 2,460 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.