SOC 51-8031 · May 2025 · BLS OEWS
Water and Wastewater Treatment Plant and System Operators — South Central Wisconsin
South Central Wisconsin nonmetropolitan area · 10 metro areas compared
The median wage for Water and Wastewater Treatment Plant and System Operators in South Central Wisconsin, WI is $58,760 per year, close to the national median of $60,020 for the same occupation.
Wage distribution · annual
Shaded band holds the middle 50% of earners
Salary overview
The median wage for Water and Wastewater Treatment Plant and System Operators in South Central Wisconsin, WI is $58,760 per year, close to the national median of $60,020 for the same occupation. Pay ranges from under $50,690 at the tenth percentile to more than $72,010 at the ninetieth, with the interquartile range running from $54,180 to $62,250.
Employment stands at 320, or 1.5 jobs per thousand held locally. Racine leads the state's metro areas for this occupation, at $74,880. Set against every other occupation measured in the same area, it ranks 196th of 421 by median pay.
Percentile breakdown
| Percentile | Annual | vs US median |
|---|---|---|
| 10th | $50,690 | −15.5% |
| 25th | $54,180 | −9.7% |
| Median (50th) | $58,760 | −2.1% |
| 75th | $62,250 | +3.7% |
| 90th | $72,010 | +20.0% |
| Mean | $59,350 | −1.1% |
Other metro areas in Wisconsin
| # | Metro area | Median | Jobs | Relative |
|---|---|---|---|---|
| 1 | Racine | $74,880 | 50 | |
| 2 | Madison | $71,850 | 150 | |
| 3 | Sheboygan | $69,440 | 50 | |
| 4 | Green Bay | $67,190 | 140 | |
| 5 | Milwaukee | $66,980 | 440 | |
| 6 | Oshkosh | $66,450 | 80 | |
| 7 | Appleton | $64,820 | 90 | |
| 8 | Kenosha | $64,650 | 30 | |
| 9 | Janesville | $64,290 | 50 | |
| 10 | Eau Claire | $63,550 | 80 |
What the pay is worth locally
Prices in South Central Wisconsin run 5.9% below the national average, so the median of $58,760 goes as far as $62,444 would elsewhere in the country. Measured that way it compares to the national median at 4.0% above the national median in real terms.
Published median
$58,760as reported by BLSLocal price level
94.1US average = 100 · BEA 2024Adjusted for local prices
$62,444US average = 100 · BEA 2024Key takeaways
- Median pay is $58,760 a year, 2.1% below the national median.
- Published pay spans $50,690 to $72,010 between the tenth and ninetieth percentiles.
- The area has 320 jobs in this occupation.
- The highest-paying metro area covered is Racine, at $74,880.
Frequently asked questions
What is the median wage for Water and Wastewater Treatment Plant and System Operators in South Central Wisconsin, WI?
The median annual wage is $58,760, or $28.25 per hour, as of May 2025. Half of the workers in this occupation earn more than that and half earn less.
Is that higher than the national average?
The national median for this occupation is $60,020, so pay in South Central Wisconsin, WI is 2.1% lower. These figures are medians, not averages: half of workers fall on each side.
What do the top earners make?
The top tenth of this occupation in South Central Wisconsin, WI earns more than $72,010 per year. The ninetieth percentile is the highest figure the survey publishes.
What is the starting range?
The tenth percentile wage is $50,690 per year. The survey measures wages actually paid rather than experience level, so this reflects the lowest-paid tenth rather than entry-level pay specifically.
Which area nearby pays the most?
The highest median for this occupation among the metro areas covered is in Racine, at $74,880 per year.
How many jobs are there in this occupation here?
The survey estimates 320 jobs in this occupation in South Central Wisconsin, WI. Self-employed workers are not included.
Source and methodology
U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025 Wages are for wage-and-salary workers; self-employed workers are not included. Salary Explorer is an independent project. It is not affiliated with, or endorsed by, the U.S. Bureau of Labor Statistics or any government agency. Full methodology.
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