Last updated: 2025 BLS data · Page refreshed:
How much does a Water and Wastewater Treatment Plant and System Operators actually take home in Delaware?
Progressive (up to 6.6%) — 22.1% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Water and Wastewater Treatment Plant and System Operators earning $64,940 in Delaware (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $64,940 | — |
| Federal Income Tax | -$6,127 | 9.4% |
| Delaware State Income Tax | -$3,269 | 5.0% |
| Social Security (OASDI) | -$4,026 | 6.2% |
| Medicare | -$941 | 1.5% |
| Total Taxes | -$14,365 | 22.1% |
| Take-Home Pay | $50,574 | 77.9% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Water and Wastewater Treatment Plant and System Operators in Delaware.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $48,160 | -$9,765 | $38,394 | 20.3% |
| 25th Percentile (P25) | $54,960 | -$11,479 | $43,480 | 20.9% |
| Median (P50) | $64,940 | -$14,365 | $50,574 | 22.1% |
| 75th Percentile (P75) | $76,240 | -$18,461 | $57,778 | 24.2% |
| 90th Percentile (P90) | $84,360 | -$21,405 | $62,955 | 25.4% |
After federal income tax ($6,127), state tax ($3,269), and FICA ($4,967), a Water and Wastewater Treatment Plant and System Operators in Delaware takes home $50,574 per year — or $4,214 per month. The effective tax rate of 22.1% is relatively low compared to the national range.
With an effective total rate of 22.1%, a Water and Wastewater Treatment Plant and System Operators in Delaware keeps $50,575 of $64,940 gross — roughly typical for U.S. middle-income earners once federal, FICA and state taxes are combined.
Delaware uses a progressive state income tax, so brackets escalate as wages rise. For this Water and Wastewater Treatment Plant and System Operators salary the state tax works out to $3,270 (5.0% effective) — on top of federal and FICA.
Federal tax on this Water and Wastewater Treatment Plant and System Operators salary is $6,128 (43%), but combined state ($3,270, 23%) + FICA ($4,968, 35%) make up the other 57% of the bill.
Moving this same Water and Wastewater Treatment Plant and System Operators salary to a zero-state-tax state would yield around $53,844 net — a gain of $3,270 (6.5%) per year versus Delaware.
Delaware ranks #14 of 50 states for Water and Wastewater Treatment Plant and System Operators after-tax pay — comfortably in the upper half.
Translated into paycheck cadences, $50,575 net/year works out to $4,215/month or $1,945/bi-weekly for this Water and Wastewater Treatment Plant and System Operators in Delaware — the numbers that actually hit a checking account after every deduction.
Where does a Water and Wastewater Treatment Plant and System Operators keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Delaware ranks #14 out of 50 states for Water and Wastewater Treatment Plant and System Operators after-tax take-home pay.
A Water and Wastewater Treatment Plant and System Operators in Delaware earning a median salary of $64,940 will take home approximately $50,574 per year after federal income tax ($6,127), state income tax ($3,269), and FICA ($4,967). That is $4,214 per month or $1,945 per bi-weekly paycheck.
The effective total tax rate for a Water and Wastewater Treatment Plant and System Operators in Delaware is 22.1%, broken down as: federal income tax 9.4%, Delaware state tax 5.0%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
Delaware has a progressive (up to 6.6%). On a Water and Wastewater Treatment Plant and System Operators's median salary of $64,940, the state income tax amounts to $3,269 per year, which is an effective state rate of 5.0%.
After all taxes, a Water and Wastewater Treatment Plant and System Operators in Delaware takes home approximately $4,214 per month, or about $24.31 per hour (based on a standard 2,080-hour work year). These figures assume a single filer, standard deduction, and no additional pre-tax deductions.
We start with the 2025 BLS median salary of $64,940 for Water and Wastewater Treatment Plant and System Operators in Delaware, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Delaware state income tax (progressive (up to 6.6%)), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $50,574/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
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This estimate assumes a single filer using the 2024 standard deduction ($14,600), with W-2 employment income only. It does not account for: itemized deductions, tax credits (e.g. earned income credit, child tax credit), local/city taxes, pre-tax contributions (401k, HSA, FSA), self-employment tax, or additional income sources. Actual take-home pay may differ. Consult a tax professional for personalized advice.
Our Methodology · Data Sources · Salary: BLS OEWS · Tax: IRS + State DOR