As of April 01, 2025, the average annual salary for a Mechanical Engineer I in Illinois is $81,056. Salary.com reports that pay typically ranges from $73,524 to $86,444, with most professionals earning between $66,667 and $91,349.
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $86,444 | $7,204 | $1,662 | $42 |
| Average | $81,056 | $6,755 | $1,559 | $39 |
| 25th Percentile | $73,524 | $6,127 | $1,414 | $35 |
An entry-level Mechanical Engineer I with under 1 year experience makes about $80,494. With less than 2 years of experience, a mid-level Mechanical Engineer I makes around $81,056. After 2-4 years, the Mechanical Engineer I pay rises to about $82,021. Those senior Mechanical Engineer I with 5-8 years of experience earn roughly $82,664, and those Mechanical Engineer I having 8 years or more experience are expected to earn about $82,825 on average.
| Levels | Salary |
|---|---|
| Entry Level Mechanical Engineer I | $80,494 |
| Intermediate Level Mechanical Engineer I | $81,056 |
| Senior Level Mechanical Engineer I | $82,021 |
| Specialist Level Mechanical Engineer I | $82,664 |
| Expert Level Mechanical Engineer I | $82,825 |
| Entry Level | 1% |
| Mid Level | 2% |
| Senior Level | 3% |
| Top Level | 4% |
| Experienced | 4% |
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