How much does a Process Engineer IV make in Illinois?
As of January 01, 2026, the average salary for a Process Engineer IV in Illinois is $137,233 per year, which breaks down to an hourly rate of $66.
However, a Process Engineer IV's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $154,652
- Majority Range (25th-75th percentile): $125,327 to $146,351
- Entry-Level (10th percentile): $114,487