How much does an Optical Engineer IV make in Illinois?
As of March 01, 2026, the average salary for an Optical Engineer IV in Illinois is $186,236 per year, which breaks down to an hourly rate of $90.
However, an Optical Engineer IV's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $205,365
- Majority Range (25th-75th percentile): $176,818 to $196,249
- Entry-Level (10th percentile): $168,243