How Much Do Water and Wastewater Treatment Plant and System Operators Make in Oklahoma?
Median wage from BLS May 2025 — and the after-tax number the salary sites skip. Tax year 2026.
Quick answer
According to payandtaxes.com's analysis of BLS May 2025 data and 2026 tax law, the median Water and Wastewater Treatment Plant and System Operators in Oklahoma earns $45,890 per year and takes home $37,533 ($3,128/month) — a keep-rate of 81.8%, with 2,280 employed in the state.
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| Gross pay | $3,824.17 |
| Federal income tax | $277.23 |
| Social Security | $237.10 |
| Medicare | $55.45 |
| Oklahoma state income tax | $126.63 |
| You keep | $3,127.76 |
How much do Water and Wastewater Treatment Plant and System Operators make in Oklahoma?
The median Water and Wastewater Treatment Plant and System Operators in Oklahoma earns $45,890 per year (BLS May 2025), about $22.06 per hour.
What is that after taxes?
$45,890 gross in Oklahoma keeps $37,533 after federal income tax ($3,327), FICA ($3,511) and state income tax ($1,520) — $3,128 per month, a 81.8% keep-rate.
How does Oklahoma compare to the national median for Water and Wastewater Treatment Plant and System Operators?
The Oklahoma median is $14,130 below the national median of $60,020.
Which state pays Water and Wastewater Treatment Plant and System Operators the most?
California has the highest median gross for Water and Wastewater Treatment Plant and System Operators at $81,770 — but compare take-home, not gross: state taxes change the order.
Water and Wastewater Treatment Plant and System Operators salary in every state · Oklahoma paycheck calculator · Oklahoma minimum wage