Water and Wastewater Treatment Plant and System Operators Salary in Mississippi

Water and wastewater treatment plant and system operators in Mississippi earn the most in Hattiesburg (average $51,160 a year) and the least in Gulfport ($48,790), across the 3 Mississippi metro areas we cover. Statewide, BLS puts the water and wastewater treatment plant and system operators average at $49,060 and the median at $46,480 for 1,150 workers. The U.S. average for this job is $62,540.

Water and Wastewater Treatment Plant and System Operators average salary by city in Mississippi

Hattiesburg$51,160
Jackson$50,200
Gulfport$48,790

Pay, take-home pay and cost of living

City	Average	Median	25th pct.	Take-home*	Cost of living
Hattiesburg	$51,160	$43,750	$38,120	$41,973	88
Jackson	$50,200	$47,070	$37,410	$41,240	89
Gulfport	$48,790	$46,550	$37,870	$40,163	90

*Average salary after federal and state taxes for a single filer. Cost of living: BEA price parity, U.S. = 100.

Water and Wastewater Treatment Plant and System Operators salary in other states

Water and Wastewater Treatment Plant and System Operators salary by city and state

More about pay in Mississippi

Sources and how to read this page

Wages: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2025 estimates for metropolitan areas. SOC code 51-8031.
U.S. and statewide figures: BLS OEWS national and state estimates, May 2025, every employer including rural areas.
Cost of living: Bureau of Economic Analysis regional price parities (RPP), 2024; 100 = U.S. average.

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