How much does an MES Engineer III make in Illinois?
As of August 01, 2026, the average salary for an MES Engineer III in Illinois is $105,680 per year, which breaks down to an hourly rate of $51.
However, an MES Engineer III's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $122,989
- Majority Range (25th-75th percentile): $96,630 to $114,740
- Entry-Level (10th percentile): $88,390