How Much Do Computer and Information Research Scientists 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 Computer and Information Research Scientists in Illinois earns $136,540 per year and takes home $97,977 ($8,165/month) — a keep-rate of 71.8%, with 630 employed in the state.
Free. No signup. Single filer, standard deduction — full model.
| Gross pay | $11,378.33 |
| Federal income tax | $1,791.96 |
| Social Security | $705.46 |
| Medicare | $164.99 |
| Illinois state income tax | $551.16 |
| You keep | $8,164.77 |
How much do Computer and Information Research Scientists make in Illinois?
The median Computer and Information Research Scientists in Illinois earns $136,540 per year (BLS May 2025), about $65.64 per hour.
What is that after taxes?
$136,540 gross in Illinois keeps $97,977 after federal income tax ($21,503), FICA ($10,445) and state income tax ($6,614) — $8,165 per month, a 71.8% keep-rate.
How does Illinois compare to the national median for Computer and Information Research Scientists?
The Illinois median is $3,760 below the national median of $140,300.
Which state pays Computer and Information Research Scientists the most?
Oregon has the highest median gross for Computer and Information Research Scientists at $206,220 — but compare take-home, not gross: state taxes change the order.
Computer and Information Research Scientists salary in every state · Illinois paycheck calculator · Illinois minimum wage