Last updated: 2025 BLS data · Page refreshed:
How much does a Geoscientists, Except Hydrologists and Geographers actually take home in Iowa?
3.9% flat rate — 22.6% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Geoscientists, Except Hydrologists and Geographers earning $74,460 in Iowa (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $74,460 | — |
| Federal Income Tax | -$8,222 | 11.0% |
| Iowa State Income Tax | -$2,903 | 3.9% |
| Social Security (OASDI) | -$4,616 | 6.2% |
| Medicare | -$1,079 | 1.5% |
| Total Taxes | -$16,822 | 22.6% |
| Take-Home Pay | $57,637 | 77.4% |
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 Iowa.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $61,730 | -$12,553 | $49,176 | 20.3% |
| 25th Percentile (P25) | $63,500 | -$13,145 | $50,354 | 20.7% |
| Median (P50) | $74,460 | -$16,822 | $57,637 | 22.6% |
| 75th Percentile (P75) | $89,670 | -$21,925 | $67,744 | 24.5% |
| 90th Percentile (P90) | $95,540 | -$23,894 | $71,645 | 25.0% |
After federal income tax ($8,222), state tax ($2,903), and FICA ($5,696), a Geoscientists, Except Hydrologists and Geographers in Iowa takes home $57,637 per year — or $4,803 per month. The effective tax rate of 22.6% is relatively low compared to the national range.
With an effective total rate of 22.6%, a Geoscientists, Except Hydrologists and Geographers in Iowa keeps $57,638 of $74,460 gross — roughly typical for U.S. middle-income earners once federal, FICA and state taxes are combined.
Iowa applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Geoscientists, Except Hydrologists and Geographers salary that contributes $2,904 to the 3.9% effective state-tax burden.
Federal tax on this Geoscientists, Except Hydrologists and Geographers salary is $8,222 (49%), but combined state ($2,904, 17%) + FICA ($5,696, 34%) make up the other 51% of the bill.
Moving this same Geoscientists, Except Hydrologists and Geographers salary to a zero-state-tax state would yield around $60,542 net — a gain of $2,904 (5.0%) per year versus Iowa.
Iowa sits near the bottom (#45 of 50) for Geoscientists, Except Hydrologists and Geographers after-tax earnings. Relocation, negotiation, or credential stacking typically show the clearest ROI in bottom-quartile states.
Translated into paycheck cadences, $57,638 net/year works out to $4,803/month or $2,217/bi-weekly for this Geoscientists, Except Hydrologists and Geographers in Iowa — the numbers that actually hit a checking account after every deduction.
Where does a Geoscientists, Except Hydrologists and Geographers keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Iowa ranks #45 out of 50 states for Geoscientists, Except Hydrologists and Geographers after-tax take-home pay.
A Geoscientists, Except Hydrologists and Geographers in Iowa earning a median salary of $74,460 will take home approximately $57,637 per year after federal income tax ($8,222), state income tax ($2,903), and FICA ($5,696). That is $4,803 per month or $2,216 per bi-weekly paycheck.
The effective total tax rate for a Geoscientists, Except Hydrologists and Geographers in Iowa is 22.6%, broken down as: federal income tax 11.0%, Iowa state tax 3.9%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
Iowa has a 3.9% flat rate. On a Geoscientists, Except Hydrologists and Geographers's median salary of $74,460, the state income tax amounts to $2,903 per year, which is an effective state rate of 3.9%.
After all taxes, a Geoscientists, Except Hydrologists and Geographers in Iowa takes home approximately $4,803 per month, or about $27.71 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 $74,460 for Geoscientists, Except Hydrologists and Geographers in Iowa, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Iowa state income tax (3.9% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $57,637/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