The median annual wage for Water and Wastewater Treatment Plant and System Operators in Kokomo, IN is $71,230 (May 2024 BLS OES). The mean (average) is $67,740.
Pay spans roughly $40,410 at the 10th percentile to $87,670 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $34.25 per hour. An estimated 40 people work as water and wastewater treatment plant and system operators in Kokomo, IN.
| Median (annual) | $71,230 |
| Mean (annual) | $67,740 |
| Median (hourly) | $34.25 |
| 10th percentile | $40,410 |
| 90th percentile | $87,670 |
| Employment | 40 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.