How Much Do Water and Wastewater Treatment Plant and System Operators Make in Montana?
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 Montana earns $58,040 per year and takes home $46,844 ($3,904/month) — a keep-rate of 80.7%, with 690 employed in the state.
Free. No signup. Single filer, standard deduction — full model.
| Gross pay | $4,836.67 |
| Federal income tax | $398.73 |
| Social Security | $299.87 |
| Medicare | $70.13 |
| Montana state income tax | $164.27 |
| You keep | $3,903.67 |
How much do Water and Wastewater Treatment Plant and System Operators make in Montana?
The median Water and Wastewater Treatment Plant and System Operators in Montana earns $58,040 per year (BLS May 2025), about $27.90 per hour.
What is that after taxes?
$58,040 gross in Montana keeps $46,844 after federal income tax ($4,785), FICA ($4,440) and state income tax ($1,971) — $3,904 per month, a 80.7% keep-rate.
How does Montana compare to the national median for Water and Wastewater Treatment Plant and System Operators?
The Montana median is $1,980 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 · Montana paycheck calculator · Montana minimum wage