The median annual wage for Fire Inspectors and Investigators in Illinois is $72,400 (May 2024 BLS OES). The mean (average) is $76,950.
Pay spans roughly $42,730 at the 10th percentile to $120,360 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $34.81 per hour. An estimated 210 people work as fire inspectors and investigators in Illinois.
| Median (annual) | $72,400 |
| Mean (annual) | $76,950 |
| Median (hourly) | $34.81 |
| 10th percentile | $42,730 |
| 90th percentile | $120,360 |
| Employment | 210 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.