Water and Wastewater Treatment Plant and System Operators Salary in Chicago-Naperville-Elgin, IL-IN (2025)
Official BLS OEWS data · May 2025 · 1,770 employed
Annual Mean
$80,080
$38.50/hr
Annual Median
$79,290
$38.12/hr
Bottom 10%
$50,690
$24.37/hr
Top 10%
$110,830
$53.29/hr
Location vs National Average
Chicago-Naperville-Elgin, IL-IN
$80,080
Difference
+28.0% vs US avg
US National
$62,540
Salary Percentile Breakdown
| Percentile | Annual |
|---|---|
10th Percentile Bottom 10% | $50,690 |
25th Percentile Lower quarter | $62,120 |
50th PercentileMedian Median | $79,290 |
75th Percentile Upper quarter | $96,250 |
90th Percentile Top 10% | $110,830 |
Salary Distribution
Annual Salary Range
10th
$51K
25th
$62K
Median
$79K
75th
$96K
90th
$111K
Chicago-Naperville-Elgin, IL-IN has a moderate number of Water and Wastewater Treatment Plant and System Operators positions (approximately 1,770), reflecting steady demand in this occupation.
In Chicago-Naperville-Elgin, IL-IN, Water and Wastewater Treatment Plant and System Operators salaries range from $50,690 at the 10th percentile to $110,830 at the 90th percentile — a spread of $60,140 (76% of the median). This relatively narrow range suggests more consistent pay across employers in this area.
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Data: BLS OEWS May 2025 · Public domain · Not affiliated with BLS.