How much does a First Sergeant make in Illinois?
As of January 01, 2026, the average salary for a First Sergeant in Illinois is $69,608 per year, which breaks down to an hourly rate of $33.
However, a First Sergeant's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $95,214
- Majority Range (25th-75th percentile): $62,854 to $83,011
- Entry-Level (10th percentile): $56,705