How Much Do Mathematicians 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 Mathematicians in Illinois earns $130,970 per year and takes home $94,446 ($7,870/month) — a keep-rate of 72.1%, with 60 employed in the state.
Free. No signup. Single filer, standard deduction — full model.
| Gross pay | $10,914.17 |
| Federal income tax | $1,680.56 |
| Social Security | $676.68 |
| Medicare | $158.26 |
| Illinois state income tax | $528.19 |
| You keep | $7,870.49 |
How much do Mathematicians make in Illinois?
The median Mathematicians in Illinois earns $130,970 per year (BLS May 2025), about $62.97 per hour.
What is that after taxes?
$130,970 gross in Illinois keeps $94,446 after federal income tax ($20,167), FICA ($10,019) and state income tax ($6,338) — $7,870 per month, a 72.1% keep-rate.
How does Illinois compare to the national median for Mathematicians?
The Illinois median is $4,260 above the national median of $126,710.
Which state pays Mathematicians the most?
Washington has the highest median gross for Mathematicians at $162,280 — but compare take-home, not gross: state taxes change the order.
Mathematicians salary in every state · Illinois paycheck calculator · Illinois minimum wage