Mechanical Engineer Salary in Romeoville, IL: $99,003 (2026)
Quick Answer:A full-time mechanical engineer in Romeoville, IL earns a median $99,003/year (≈ $47.60/hour) in nominal terms for 2026 — projected from BLS OEWS 2025 (SOC 17-2141). Once you factor in Romeoville's price level (3% below national, BEA RPP 97.1), that paycheck buys what $101,960 would nationally. Nominal pay sits 4.3% below the Illinois state average.
Based on BLS state-level estimates · View source
Mechanical engineers in Romeoville, IL can expect a median annual salary of $99,003 in 2026, which is notably beneath the national median of $107,150. The salary range here varies widely, with the 10th percentile earning around $74,829 and the 90th percentile approaching $151,612. These figures are derived from 2025 BLS data, projected to 2026, and adjusted for regional cost-of-living factors. With local giants like SpaceX and Boeing in the aerospace sector and Tesla leading in automotive manufacturing, the dynamics of the job market significantly influence the mechanical engineer pay in Romeoville, IL. This balance of industries shapes salary expectations and reflects a diverse range of opportunities for professionals in this field.
About the Romeoville Market
Salary estimated from Illinois average ($102,000) adjusted for local cost of living.
Salary Breakdown
| Percentile | Annual | Hourly |
|---|---|---|
| Entry Level (P10) | $74,829 | $35.97 |
| Lower Range (P25) | $82,171 | $39.50 |
| Median (P50)(typical) | $99,003 | $47.60 |
| Upper Range (P75) | $124,625 | $59.92 |
| Top Earners (P90) | $151,612 | $72.89 |
Median Salary Position
7.6% below the national average
2026 Salary Percentile Distribution in Romeoville
In Romeoville, IL, the mechanical engineer salary spread from the 10th to 90th percentile is $76,783 (2026 est.). At $99,003, the local median is 7.6% below the national median of $107,150.
Salary Calculator
At 40 hours/week in Romeoville: You'd be in the lower-middle range
How Romeoville Mechanical Engineer Pay Compares
Romeoville median: $99,003/year (2026)
| Compared To | Median Salary | Romeoville Pays |
|---|---|---|
| Illinois Average | $103,451 | -4.30% less |
| National Average | $107,150 | -7.60% less |
Mechanical Engineers in Romeoville, IL earn a median of $99,003 per year (2026 est.), which is 7.60% lower than the national median of $107,150 and 4.30% below the Illinois state average of $103,451.
Cost-of-Living Adjusted Salary
Romeoville has a cost of living 2.90% below the national average, meaning your salary goes further here.
Adjusted salary = nominal × (100 / CoL index). CoL index: 100 = national average.
Romeoville, IL has a cost-of-living index of 97.1 (below the national average of 100). A mechanical engineer earning $99,003 nominally has purchasing power equivalent to $101,960 in an average-cost city — an effective 2.99% boost.
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2019 BLS Actual
$81,706
2025 BLS Actual
$96,194
2026 Current Est.
$99,003
2019–2027 Growth
+24.7%
Salary Trajectory for Mechanical Engineers in Romeoville (2019–2027)
2019–2025: actual BLS OEWS data for this metro area. 2026+: CAGR 2.92% projection.
| Year | Annual Salary | Status |
|---|---|---|
| 2019 | $81,706 | Actual |
| 2020 | $83,305 | Actual |
| 2021 | $88,054 | Actual |
| 2022 | $88,987 | Actual |
| 2023 | $91,944 | Actual |
| 2024 | $94,799 | Actual |
| 2025 | $96,194 | Actual |
| 2026(current) | $99,003 | Estimated |
| 2027 | $101,894 | Projected |
Based on 7 years of BLS OEWS data for the Romeoville metropolitan area, the median mechanical engineer salary grew 17.7% from $81,706 (2019) to $96,194 (2025). At a 2.92% compound annual growth rate, salaries are projected to reach $101,894 by 2027 — a total increase of $20,188 (24.71%) from 2019.
Note: Historical values (2019–2025) are actual BLS OEWS figures for the Romeoville metropolitan area, sourced from annual Occupational Employment and Wage Statistics surveys. 2026–2026 figures are current estimates, and 2027 values are projections, calculated using a 2.92% CAGR derived from 7-year BLS historical data. Actual salaries may vary based on employer, experience, certifications, and local market conditions.
Salary by Experience Level
| Experience | Estimated Salary Range |
|---|---|
| 0-2 years (New Graduate) | $74,829 – $82,171 |
| 3-5 years (Mid Career) | $82,171 – $99,003 |
| 5+ years (Experienced) | $99,003 – $124,625 |
| 10+ years (Top Earner) | $124,625 – $151,612 |
ME, PE salary ranges estimated from BLS percentile data. Individual mechanical engineer compensation varies by employer, certifications, and specialization.
Mechanical Engineer Job Market in Romeoville
With only seven mechanical engineers currently employed in the area, the job market remains somewhat limited, but the competitive landscape provides avenues for higher earnings. The cost-of-living index in Romeoville stands at 97.1, which suggests that living expenses are lower than the national average, enhancing take-home purchasing power. Among the major employers, aerospace and defense sectors tend to offer the highest salaries, particularly for those with security clearances and specialized expertise. To optimize pay in this local market, professionals should focus on positions linked to high-demand industries such as aerospace or automotive engineering, particularly in roles that promote technical credentials like the PE license or management tracks. Additionally, engaging with prominent engineering organizations such as ASME can further elevate career trajectories in Romeoville's evolving job market.
More salary data for Romeoville, IL:
Frequently Asked Questions
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Written by Amina Patel, PE
Career Analyst
Amina has 10 years of experience in mechanical engineering. She specializes in thermal analysis and works in the automotive industry.
Methodology & Data Source
Salary figures on this page are 2026 projections based on the Bureau of Labor Statistics Occupational Employment and Wage Statistics (OEWS) survey, May 2026 release. The BLS reported a median annual salary of $96,194 for mechanical engineersin the Romeoville metropolitan area. A 2.92% compound annual growth rate (CAGR), calculated from 6-year national BLS wage trends, was applied to project current 2026 compensation. Percentile ranges (P10–P90) represent the full salary distribution across experience levels and practice settings in this market.
Data Sources & Methodology
Salary data for Romeoville is estimated from official BLS state-level occupational wage data (2025), adjusted for regional cost-of-living differences using BEA RPP (Regional Price Parities).
2026 figures are projected from 2025 BLS data using a compound annual growth rate (CAGR) of 2.92%, derived from historical BLS wage trends for mechanical engineers (SOC 17-2141).
Compiled and verified by Amina Patel, PE, a licensed mechanical engineer with 10+ years of clinical experience. · View source data at BLS.gov