How much does a Third Assistant Engineer make in Illinois?
As of February 01, 2026, the average salary for a Third Assistant Engineer in Illinois is $98,577 per year, which breaks down to an hourly rate of $47.
However, a Third Assistant Engineer's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $113,468
- Majority Range (25th-75th percentile): $93,099 to $106,371
- Entry-Level (10th percentile): $88,113