How much does a Facilities Design Engineer III make in Illinois?
As of June 01, 2026, the average salary for a Facilities Design Engineer III in Illinois is $117,727 per year, which breaks down to an hourly rate of $57.
However, a Facilities Design Engineer III's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $139,463
- Majority Range (25th-75th percentile): $107,368 to $129,105
- Entry-Level (10th percentile): $97,937