The median annual wage for Water and Wastewater Treatment Plant and System Operators in Gulfport-Biloxi, MS is $44,500 (May 2024 BLS OES). The mean (average) is $44,300.
Pay spans roughly $31,160 at the 10th percentile to $60,170 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $21.39 per hour. An estimated 160 people work as water and wastewater treatment plant and system operators in Gulfport-Biloxi, MS.
| Median (annual) | $44,500 |
| Mean (annual) | $44,300 |
| Median (hourly) | $21.39 |
| 10th percentile | $31,160 |
| 90th percentile | $60,170 |
| Employment | 160 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.