How Much Do Chemical Plant and System Operators Make in Illinois?
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 Chemical Plant and System Operators in Illinois earns $65,710 per year and takes home $51,870 ($4,323/month) — a keep-rate of 78.9%, with 160 employed in the state.
Free. No signup. Single filer, standard deduction — full model.
| Gross pay | $5,475.83 |
| Federal income tax | $475.43 |
| Social Security | $339.50 |
| Medicare | $79.40 |
| Illinois state income tax | $258.99 |
| You keep | $4,322.51 |
How much do Chemical Plant and System Operators make in Illinois?
The median Chemical Plant and System Operators in Illinois earns $65,710 per year (BLS May 2025), about $31.59 per hour.
What is that after taxes?
$65,710 gross in Illinois keeps $51,870 after federal income tax ($5,705), FICA ($5,027) and state income tax ($3,108) — $4,323 per month, a 78.9% keep-rate.
How does Illinois compare to the national median for Chemical Plant and System Operators?
The Illinois median is $12,410 below the national median of $78,120.
Which state pays Chemical Plant and System Operators the most?
Florida has the highest median gross for Chemical Plant and System Operators at $128,830 — but compare take-home, not gross: state taxes change the order.
Chemical Plant and System Operators salary in every state · Illinois paycheck calculator · Illinois minimum wage