Last updated: 2025 BLS data · Page refreshed:
How much does a Zoologists and Wildlife Biologists actually take home in Illinois?
5.0% flat rate — 24.4% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Zoologists and Wildlife Biologists earning $79,780 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $79,780 | — |
| Federal Income Tax | -$9,392 | 11.8% |
| Illinois State Income Tax | -$3,949 | 5.0% |
| Social Security (OASDI) | -$4,946 | 6.2% |
| Medicare | -$1,156 | 1.4% |
| Total Taxes | -$19,444 | 24.4% |
| Take-Home Pay | $60,335 | 75.6% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Zoologists and Wildlife Biologists in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $55,690 | -$11,715 | $43,974 | 21.0% |
| 25th Percentile (P25) | $61,220 | -$13,076 | $48,143 | 21.4% |
| Median (P50) | $79,780 | -$19,444 | $60,335 | 24.4% |
| 75th Percentile (P75) | $97,470 | -$25,565 | $71,904 | 26.2% |
| 90th Percentile (P90) | $112,900 | -$30,904 | $81,995 | 27.4% |
After federal income tax ($9,392), state tax ($3,949), and FICA ($6,103), a Zoologists and Wildlife Biologists in Illinois takes home $60,335 per year — or $5,027 per month. The effective tax rate of 24.4% is relatively low compared to the national range.
With an effective total rate of 24.4%, a Zoologists and Wildlife Biologists in Illinois keeps $60,335 of $79,780 gross — roughly typical for U.S. middle-income earners once federal, FICA and state taxes are combined.
Illinois applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Zoologists and Wildlife Biologists salary that contributes $3,949 to the 5.0% effective state-tax burden.
Federal tax on this Zoologists and Wildlife Biologists salary is $9,393 (48%), but combined state ($3,949, 20%) + FICA ($6,103, 31%) make up the other 52% of the bill.
Moving this same Zoologists and Wildlife Biologists salary to a zero-state-tax state would yield around $64,284 net — a gain of $3,949 (6.5%) per year versus Illinois.
Illinois ranks #20 of 47 states for Zoologists and Wildlife Biologists after-tax pay — comfortably in the upper half.
Translated into paycheck cadences, $60,335 net/year works out to $5,028/month or $2,321/bi-weekly for this Zoologists and Wildlife Biologists in Illinois — the numbers that actually hit a checking account after every deduction.
Where does a Zoologists and Wildlife Biologists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #20 out of 47 states for Zoologists and Wildlife Biologists after-tax take-home pay.
A Zoologists and Wildlife Biologists in Illinois earning a median salary of $79,780 will take home approximately $60,335 per year after federal income tax ($9,392), state income tax ($3,949), and FICA ($6,103). That is $5,027 per month or $2,320 per bi-weekly paycheck.
The effective total tax rate for a Zoologists and Wildlife Biologists in Illinois is 24.4%, broken down as: federal income tax 11.8%, Illinois state tax 5.0%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
Illinois has a 5.0% flat rate. On a Zoologists and Wildlife Biologists's median salary of $79,780, the state income tax amounts to $3,949 per year, which is an effective state rate of 5.0%.
After all taxes, a Zoologists and Wildlife Biologists in Illinois takes home approximately $5,027 per month, or about $29.01 per hour (based on a standard 2,080-hour work year). These figures assume a single filer, standard deduction, and no additional pre-tax deductions.
We start with the 2025 BLS median salary of $79,780 for Zoologists and Wildlife Biologists in Illinois, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Illinois state income tax (5.0% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $60,335/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
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This estimate assumes a single filer using the 2024 standard deduction ($14,600), with W-2 employment income only. It does not account for: itemized deductions, tax credits (e.g. earned income credit, child tax credit), local/city taxes, pre-tax contributions (401k, HSA, FSA), self-employment tax, or additional income sources. Actual take-home pay may differ. Consult a tax professional for personalized advice.
Our Methodology · Data Sources · Salary: BLS OEWS · Tax: IRS + State DOR