How Much Do Civil Engineers 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 Civil Engineers in Illinois earns $99,760 per year and takes home $74,218 ($6,185/month) — a keep-rate of 74.4%, with 13,910 employed in the state.
Free. No signup. Single filer, standard deduction — full model.
| Gross pay | $8,313.33 |
| Federal income tax | $1,093.09 |
| Social Security | $515.43 |
| Medicare | $120.54 |
| Illinois state income tax | $399.44 |
| You keep | $6,184.83 |
How much do Civil Engineers make in Illinois?
The median Civil Engineers in Illinois earns $99,760 per year (BLS May 2025), about $47.96 per hour.
What is that after taxes?
$99,760 gross in Illinois keeps $74,218 after federal income tax ($13,117), FICA ($7,632) and state income tax ($4,793) — $6,185 per month, a 74.4% keep-rate.
How does Illinois compare to the national median for Civil Engineers?
The Illinois median is $1,080 below the national median of $100,840.
Which state pays Civil Engineers the most?
California has the highest median gross for Civil Engineers at $122,500 — but compare take-home, not gross: state taxes change the order.
Civil Engineers salary in every state · Illinois paycheck calculator · Illinois minimum wage