Salaries › Water Treatment Operator › Idaho
Water Treatment Operator Salary in Idaho (2026)
$25.10 per hour · take-home ≈ $42,217/year ($3,518/month) for a single filer
Idaho ranks 35th of 50 states for Water Treatment Operator pay, with a median about 13% below the national average. Of the 1,480 Water Treatment Operator jobs BLS counts in Idaho, the typical worker earns $52,210 a year — though pay ranges from $40,820 for newcomers to $74,950 at the top.
Water Treatment Operator pay range in Idaho
| Percentile | Annual wage | Meaning |
| 10th percentile (entry) | $40,820 | Lowest-paid 10% earn less than this |
| 25th percentile | $45,940 | A quarter earn less |
| Median (50th) | $52,210 | Half earn more, half earn less |
| 75th percentile | $61,600 | Top quarter starts here |
| 90th percentile (top) | $74,950 | Highest-paid 10% earn more than this |
BLS reports 1,480 Water Treatment Operator jobs in Idaho (occupation code 51-8031, “Water and Wastewater Treatment Plant and System Operators”).
Gross vs. take-home in Idaho
A median Water Treatment Operator salary of $52,210 doesn’t all reach your bank account. After federal income tax, Social Security, and Medicare, plus Idaho state income tax, a single filer keeps about $42,217 — an effective tax rate of 19.1%.
| Gross (median) | $52,210 |
| Federal income tax | −$4,085 |
| Social Security + Medicare | −$3,994 |
| Idaho state income tax | −$1,914 |
| Take-home (annual) | $42,217 |
| Take-home (monthly) | $3,518 |
Want your exact numbers — married, 401(k), different salary? Use the free Idaho paycheck calculator on PaycheckTally.
Frequently asked questions
- How much does a Water Treatment Operator make in Idaho?
- The median Water Treatment Operator salary in Idaho is $52,210 per year ($25.10 per hour) according to the latest BLS data. The middle 50% earn between $45,940 and $61,600.
- What is the take-home pay for a Water Treatment Operator in Idaho?
- On the median salary of $52,210, a single filer in Idaho takes home about $42,217 per year ($3,518 per month) after federal tax, FICA, and state income tax — an effective tax rate of 19.1%.
- How many Water Treatment Operator jobs are there in Idaho?
- BLS counts 1,480 Water Treatment Operator jobs in Idaho in the latest survey (May 2025).
Top-paying states for Water Treatment Operators
Other salaries in Idaho
Sources and methodology
Wage and employment figures: BLS OEWS May 2025 (state file, released April 2026) — the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics survey, the most authoritative public salary dataset. Take-home estimate: 2026 federal brackets, FICA, and verified Idaho state tax rules (single filer, standard deduction, no credits or local taxes). Estimates only — not financial advice.
- BLS OEWS — official occupational wage data.
- PaycheckTally — interactive 2026 take-home calculator for Idaho.