Mechanical Engineer · Idaho · SOC 17-2141
2026 Mechanical Engineer Pay in Idaho: BLS Median + Real Take-Home
BLS Occupational Employment and Wage Statistics, 2024 reference period · BEA Regional Price Parity 2023 vintage · Last synced 2026-05-05.
TL;DR
- Mechanical Engineers in Idaho earn a BLS median of $103,660, with real take-home of $112,386 after BEA RPP adjustment.
- Below-100 RPP flips this state above its nominal rank in real-wage terms; the gap is about $8,726.
- P25-P75 spread runs $81,220 to $136,590; P10 floor $63,980, P90 ceiling $136,590.
- On a real-wage basis, this state sits at #10 of 51; nominal rank is #19.
Wage breakdown — Idaho
| Percentile | Nominal (BLS) | Real (BEA RPP-adjusted) |
|---|---|---|
| P10 (entry tier) | $63,980 | $69,366 |
| P25 (lower quartile) | $81,220 | $88,057 |
| P50 (median) | $103,660 | $112,386 |
| P75 (upper quartile) | $136,590 | $148,088 |
| P90 (top tier) | $136,590 | $148,088 |
| Mean | $108,170 | $117,275 |
| Employment | 970 Mechanical Engineers in Idaho | |
Cost of living — BEA Regional Price Parity
| Component | Idaho index (US = 100) |
|---|---|
| All-items RPP | 92.2 |
| Goods | 95.9 |
| Services | 68.1 |
| Rents | 86.9 |
Idaho sits below the national baseline (RPP 92.2), so nominal pay translates to a higher real wage than the BLS median suggests — particularly visible in rents at 86.9.
After-tax take-home — Idaho (2024 BLS · 2024 tax year, single filer)
Layer-by-layer take-home math at the BLS median
| Layer | Amount | Note |
|---|---|---|
| Gross BLS P50 (Mechanical Engineer) | $103,660 | nominal median |
| Federal income tax | −$14,052 | 13.6% effective; std deduction $15,750 applied |
| State income tax | −$5,099 | 5.8% flat (2026) |
| FICA (SS 6.2% + Medicare 1.45%) | −$7,930 | SS capped at $183,600 wage base |
| Take-home (after-tax) | $76,579 | 73.9% of gross |
| Real take-home (RPP-adjusted) | $83,025 | ÷ (92.2 / 100) BEA cost-of-living |
What the Idaho state-tax burden means for Mechanical Engineer take-home
Mid-band state-tax burden at 4.9% effective. Combined with federal and FICA, take-home is $76,579 (73.9% of gross). After the 92.2 RPP, real take-home is $83,025.
Computed from 2026 IRS federal brackets (Rev. Proc. 2025-32), 2026 state DOR brackets, and 2026 FICA rates. Single filer, standard deduction, no other adjustments. See methodology · tax for limitations (married filers, ITM/SALT itemizers, retirement deferrals, HSA, dependent credits, etc.).
National context
Across the United States, BLS reports a national median of $102,320 for Mechanical Engineers with mean pay of $110,080 and total employment of 286,760. Idaho sits at #19 on nominal pay and #10 on real (cost-adjusted) pay among the 51 states and DC. After cost adjustment, Idaho climbs 9 positions — the cost of living is favorable relative to the wage.
Frequently asked questions
- How are Idaho Mechanical Engineer salaries calculated on this page?
- Nominal wages come from BLS Occupational Employment and Wage Statistics (OES) — annual employer surveys, May 2026 reference period. Real-wage figures use BEA Regional Price Parities (2023 vintage) to adjust for state-level cost of living. No self-report or jobs-board data is mixed in.
- What does the top of the Mechanical Engineer pay scale look like in Idaho?
- The 90th percentile lands at $136,590. That tier typically reflects senior roles, specialty certifications, high-cost-of-living metros within the state, or union-negotiated rate cards. Below that, the P75 quartile is $136,590.
- Where does Idaho rank for Mechanical Engineer pay?
- On nominal BLS wages alone, Idaho ranks among the 51 states and DC by median pay. After the BEA cost-of-living adjustment the ordering changes — high-cost states fall, low-cost states rise. Both rankings are shown in the data table on this page.
- Should I negotiate based on the BLS median for Idaho?
- The BLS median is a calibration anchor, not a ceiling. Use it to validate that an offer is in-band — anything well below the P25 in this state is a flag, anything above the P75 typically requires demonstrable specialty depth, niche credentials, or a high-COL metro within Idaho.
- When does this data update?
- BLS OES releases a new May reference set roughly each spring; we re-run the ETL pipeline within two weeks of release. BEA RPP refreshes annually. The last-synced timestamp at the top of this page reflects the most recent build.
- Does PE license raise mechanical engineer pay in Idaho?
- PE (Professional Engineer) license through Idaho's engineering board typically adds 5-15% to the BLS-reported median for mechanical engineers, concentrated in industries that require sealed drawings — civil-mechanical (HVAC for buildings), pressure-vessel, oil/gas, and government contracts. In R&D, defense (where security clearance dominates), and consumer-product design, PE has limited wage premium. Idaho follows the NCEES path: BS-ABET + FE exam + 4 years of progressive experience + PE exam.
- BS vs MS in mechanical engineering — does the master's pay back in Idaho?
- MS-ME in Idaho adds roughly $8-15K to starting pay versus BS-only and shortens the path into specialty roles (CFD, FEA, controls, robotics). The 1.5-2 year tuition + foregone earnings opportunity cost typically breaks even 6-9 years out. PhD-MechE only pays back inside research-heavy positions (national labs, R&D-heavy primes) and largely doesn't lift the BLS-tracked engineering-staff wage in standard industry roles.
Sources & methodology
- U.S. Bureau of Labor Statistics — Occupational Employment and Wage Statistics (OES), SOC 17-2141, 2024 reference period.
- U.S. Bureau of Economic Analysis — Regional Price Parities, 2023 vintage (all-items, goods, services, rents).
- Real-wage figures = nominal BLS wage ÷ (state RPP / 100).
- See the methodology page for full computation details and limitations.
Cross-comparison: see how Idaho Mechanical Engineer pay ranks against the other 254 state × occupation pages on the Real Wage Atlas → — four-way ranking by real wage, after-tax take-home, state-tax savings, and cost-of-living arbitrage.