How Much Do Data 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 Data Scientists in Illinois earns $106,560 per year and takes home $78,665 ($6,555/month) — a keep-rate of 73.8%, with 10,520 employed in the state.
Free. No signup. Single filer, standard deduction — full model.
| Gross pay | $8,880.00 |
| Federal income tax | $1,217.76 |
| Social Security | $550.56 |
| Medicare | $128.76 |
| Illinois state income tax | $427.49 |
| You keep | $6,555.43 |
How much do Data Scientists make in Illinois?
The median Data Scientists in Illinois earns $106,560 per year (BLS May 2025), about $51.23 per hour.
What is that after taxes?
$106,560 gross in Illinois keeps $78,665 after federal income tax ($14,613), FICA ($8,152) and state income tax ($5,130) — $6,555 per month, a 73.8% keep-rate.
How does Illinois compare to the national median for Data Scientists?
The Illinois median is $13,670 below the national median of $120,230.
Which state pays Data Scientists the most?
Washington has the highest median gross for Data Scientists at $163,350 — but compare take-home, not gross: state taxes change the order.
Data Scientists salary in every state · Illinois paycheck calculator · Illinois minimum wage