Last updated: 2025 BLS data · Page refreshed:
How much does a Hydrologic Technicians actually take home in Idaho?
5.8% flat rate — 21.8% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Hydrologic Technicians earning $54,950 in Idaho (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $54,950 | — |
| Federal Income Tax | -$4,610 | 8.4% |
| Idaho State Income Tax | -$3,187 | 5.8% |
| Social Security (OASDI) | -$3,406 | 6.2% |
| Medicare | -$796 | 1.5% |
| Total Taxes | -$12,000 | 21.8% |
| Take-Home Pay | $42,949 | 78.2% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Hydrologic Technicians in Idaho.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $45,350 | -$9,557 | $35,792 | 21.1% |
| 25th Percentile (P25) | $47,690 | -$10,153 | $37,536 | 21.3% |
| Median (P50) | $54,950 | -$12,000 | $42,949 | 21.8% |
| 75th Percentile (P75) | $74,010 | -$18,077 | $55,932 | 24.4% |
| 90th Percentile (P90) | $83,780 | -$21,541 | $62,238 | 25.7% |
After federal income tax ($4,610), state tax ($3,187), and FICA ($4,203), a Hydrologic Technicians in Idaho takes home $42,949 per year — or $3,579 per month. The effective tax rate of 21.8% is relatively low compared to the national range.
With an effective total rate of 21.8%, a Hydrologic Technicians in Idaho keeps $42,949 of $54,950 gross — roughly typical for U.S. middle-income earners once federal, FICA and state taxes are combined.
Idaho applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Hydrologic Technicians salary that contributes $3,187 to the 5.8% effective state-tax burden.
Federal tax on this Hydrologic Technicians salary is $4,610 (38%), but combined state ($3,187, 27%) + FICA ($4,204, 35%) make up the other 62% of the bill.
Moving this same Hydrologic Technicians salary to a zero-state-tax state would yield around $46,136 net — a gain of $3,187 (7.4%) per year versus Idaho.
Idaho sits near the bottom (#23 of 28) for Hydrologic Technicians after-tax earnings. Relocation, negotiation, or credential stacking typically show the clearest ROI in bottom-quartile states.
Translated into paycheck cadences, $42,949 net/year works out to $3,579/month or $1,652/bi-weekly for this Hydrologic Technicians in Idaho — the numbers that actually hit a checking account after every deduction.
Where does a Hydrologic Technicians keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Idaho ranks #23 out of 28 states for Hydrologic Technicians after-tax take-home pay.
A Hydrologic Technicians in Idaho earning a median salary of $54,950 will take home approximately $42,949 per year after federal income tax ($4,610), state income tax ($3,187), and FICA ($4,203). That is $3,579 per month or $1,651 per bi-weekly paycheck.
The effective total tax rate for a Hydrologic Technicians in Idaho is 21.8%, broken down as: federal income tax 8.4%, Idaho state tax 5.8%, and FICA (Social Security + Medicare) 7.7%. This assumes a single filer with the standard deduction for 2024.
Idaho has a 5.8% flat rate. On a Hydrologic Technicians's median salary of $54,950, the state income tax amounts to $3,187 per year, which is an effective state rate of 5.8%.
After all taxes, a Hydrologic Technicians in Idaho takes home approximately $3,579 per month, or about $20.65 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 $54,950 for Hydrologic Technicians in Idaho, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Idaho state income tax (5.8% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $42,949/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