Salaries › Water Treatment Operator › Maryland
Water Treatment Operator Salary in Maryland (2026)
$29.75 per hour · take-home ≈ $49,165/year ($4,097/month) for a single filer
Maryland ranks 20th of 50 states for Water Treatment Operator pay, with a median about 3% above the national average. Of the 1,770 Water Treatment Operator jobs BLS counts in Maryland, the typical worker earns $61,870 a year — though pay ranges from $44,990 for newcomers to $88,970 at the top.
Water Treatment Operator pay range in Maryland
| Percentile | Annual wage | Meaning |
| 10th percentile (entry) | $44,990 | Lowest-paid 10% earn less than this |
| 25th percentile | $49,820 | A quarter earn less |
| Median (50th) | $61,870 | Half earn more, half earn less |
| 75th percentile | $76,850 | Top quarter starts here |
| 90th percentile (top) | $88,970 | Highest-paid 10% earn more than this |
BLS reports 1,770 Water Treatment Operator jobs in Maryland (occupation code 51-8031, “Water and Wastewater Treatment Plant and System Operators”).
Gross vs. take-home in Maryland
A median Water Treatment Operator salary of $61,870 doesn’t all reach your bank account. After federal income tax, Social Security, and Medicare, plus Maryland state income tax, a single filer keeps about $49,165 — an effective tax rate of 20.5%.
| Gross (median) | $61,870 |
| Federal income tax | −$5,244 |
| Social Security + Medicare | −$4,733 |
| Maryland state income tax | −$2,727 |
| Take-home (annual) | $49,165 |
| Take-home (monthly) | $4,097 |
Want your exact numbers — married, 401(k), different salary? Use the free Maryland paycheck calculator on PaycheckTally.
Frequently asked questions
- How much does a Water Treatment Operator make in Maryland?
- The median Water Treatment Operator salary in Maryland is $61,870 per year ($29.75 per hour) according to the latest BLS data. The middle 50% earn between $49,820 and $76,850.
- What is the take-home pay for a Water Treatment Operator in Maryland?
- On the median salary of $61,870, a single filer in Maryland takes home about $49,165 per year ($4,097 per month) after federal tax, FICA, and state income tax — an effective tax rate of 20.5%.
- How many Water Treatment Operator jobs are there in Maryland?
- BLS counts 1,770 Water Treatment Operator jobs in Maryland in the latest survey (May 2025).
Top-paying states for Water Treatment Operators
Other salaries in Maryland
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 Maryland 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 Maryland.