Water and Wastewater Treatment Plant and System Operators Salary in Washington (2025)
Official BLS OEWS data · May 2025 · 2,030 employed
Salary Percentile Breakdown
| Percentile | Annual |
|---|---|
10th Percentile Bottom 10% | $57,720 |
25th Percentile Lower quarter | $67,690 |
50th PercentileMedian Median | $80,800 |
75th Percentile Upper quarter | $99,940 |
90th Percentile Top 10% | $106,270 |
Salary Distribution
Annual Salary Range
10th
$58K
25th
$68K
Median
$81K
75th
$100K
90th
$106K
Washington has a moderate number of Water and Wastewater Treatment Plant and System Operators positions (approximately 2,030), reflecting steady demand in this occupation.
In Washington, Water and Wastewater Treatment Plant and System Operators salaries range from $57,720 at the 10th percentile to $106,270 at the 90th percentile — a spread of $48,550 (60% of the median). This relatively narrow range suggests more consistent pay across employers in this area.
Top Paying Cities in Washington
Metro areas with highest Water and Wastewater Treatment Plant and System Operators wages
How Water and Wastewater Treatment Plant and System Operators Compares in Washington
The average Water and Wastewater Treatment Plant and System Operators salary of $82,770 in Washington ranks above the national average of $62,540. There are approximately 2,030 Water and Wastewater Treatment Plant and System Operatorss employed in Washington.