How much does a Geoscientists, Except Hydrologists and Geographers actually take home in Illinois?
5.0% flat rate — 24.8% effective total tax rateData: BLS OEWS 2024 + IRS/State Tax Brackets 2024 • Updated 2026-04-06
Some links are affiliate links. See our disclosure.
Detailed line-by-line tax calculation for a Geoscientists, Except Hydrologists and Geographers earning $83,250 in Illinois (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $83,250 | — |
| Federal Income Tax | -$10,156 | 12.2% |
| Illinois State Income Tax | -$4,120 | 5.0% |
| Social Security (OASDI) | -$5,161 | 6.2% |
| Medicare | -$1,207 | 1.4% |
| Total Taxes | -$20,645 | 24.8% |
| Take-Home Pay | $62,604 | 75.2% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Geoscientists, Except Hydrologists and Geographers in Illinois.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $61,380 | -$13,115 | $48,264 | 21.4% |
| 25th Percentile (P25) | $71,120 | -$16,448 | $54,671 | 23.1% |
| Median (P50) | $83,250 | -$20,645 | $62,604 | 24.8% |
| 75th Percentile (P75) | $110,990 | -$30,243 | $80,746 | 27.2% |
| 90th Percentile (P90) | $146,390 | -$43,117 | $103,272 | 29.5% |
After federal income tax ($10,156), state tax ($4,120), and FICA ($6,368), a Geoscientists, Except Hydrologists and Geographers in Illinois takes home $62,604 per year — or $5,217 per month. The effective tax rate of 24.8% is relatively low compared to the national range.
Where does a Geoscientists, Except Hydrologists and Geographers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Illinois ranks #21 out of 49 states for Geoscientists, Except Hydrologists and Geographers after-tax take-home pay.
A Geoscientists, Except Hydrologists and Geographers in Illinois earning a median salary of $83,250 will take home approximately $62,604 per year after federal income tax ($10,156), state income tax ($4,120), and FICA ($6,368). That is $5,217 per month or $2,407 per bi-weekly paycheck.
The effective total tax rate for a Geoscientists, Except Hydrologists and Geographers in Illinois is 24.8%, broken down as: federal income tax 12.2%, 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 Geoscientists, Except Hydrologists and Geographers's median salary of $83,250, the state income tax amounts to $4,120 per year, which is an effective state rate of 5.0%.
After all taxes, a Geoscientists, Except Hydrologists and Geographers in Illinois takes home approximately $5,217 per month, or about $30.10 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 2024 BLS median salary of $83,250 for Geoscientists, Except Hydrologists and Geographers 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 — $62,604/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
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