Idaho ranks 35th of 50 states and D.C. for water and wastewater treatment plant and system operators pay, trailing top-paying California ($82,100) by $28,850 — a 54% gap.
The 10th-to-90th percentile range runs from $39,540 to $71,720 — a $32,180 spread, 33% tighter than the national $48,290 range.
Water and Wastewater Treatment Plant and System Operators are more concentrated in Idaho than the U.S. average — a location quotient of 1.60 means the occupation's share of local jobs is 1.60× the national share.
Salary Range: 10th to 90th Percentile
Full Percentile Breakdown
| Percentile | Annual Wage | Hourly Wage |
|---|---|---|
| 10th percentile (entry-level) | $39,540 | $19.01 |
| 25th percentile | $45,870 | $22.05 |
| 50th percentile (median) | $53,250 | $25.60 |
| 75th percentile | $60,400 | $29.04 |
| 90th percentile (top earners) | $71,720 | $34.48 |
| Mean (average) | $54,390 | $26.15 |
How Idaho Compares
| State | Median Annual | vs. Idaho |
|---|---|---|
| Idaho (current) | $53,250 | n/a |
| California | $82,100 | +54% |
| Nevada | $79,140 | +49% |
| Washington | $78,810 | +48% |
| Alaska | $76,910 | +44% |
| New Jersey | $75,200 | +41% |
| Connecticut | $74,450 | +40% |
| Minnesota | $70,470 | +32% |
| Colorado | $68,220 | +28% |
Showing top-paying states with available data. View all states →
Related Occupations in Idaho
| Occupation | Median Annual | Employment |
|---|---|---|
| Cargo and Freight Agents | $53,240 | 150 |
| Heavy and Tractor-Trailer Truck Drivers | $53,260 | 14,860 |
| Machinists | $53,760 | 1,150 |
| Heating, Air Conditioning, and Refrigeration Mechanics and Installers | $52,730 | 3,570 |
| Firefighters | $53,860 | 2,100 |
| Paralegals and Legal Assistants | $54,020 | 2,250 |
Frequently Asked Questions
What is the average Water and Wastewater Treatment Plant and System Operators salary in Idaho?
The mean water and wastewater treatment plant and system operators salary in Idaho is $54,390 per year. The median (middle) salary is $53,250 per year.
What is the starting salary for a Water and Wastewater Treatment Plant and System Operators in Idaho?
Entry-level water and wastewater treatment plant and system operatorss (10th percentile) in Idaho typically earn around $39,540 per year. Workers at the 25th percentile earn approximately $45,870 per year.
What is the highest Water and Wastewater Treatment Plant and System Operators salary in Idaho?
Top earners (90th percentile) in this occupation in Idaho make approximately $71,720 per year. Those in the 75th percentile earn around $60,400 per year.
How does the Idaho Water and Wastewater Treatment Plant and System Operators salary compare to the national average?
The median water and wastewater treatment plant and system operators salary in Idaho is $53,250, which is -9% below national average of $58,260.