The median annual wage for Gambling Surveillance Officers and Gambling Investigators in Illinois is $43,590 (May 2024 BLS OES). The mean (average) is $43,980.
Pay spans roughly $31,100 at the 10th percentile to $59,100 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $20.96 per hour. An estimated 170 people work as gambling surveillance officers and gambling investigators in Illinois.
| Median (annual) | $43,590 |
| Mean (annual) | $43,980 |
| Median (hourly) | $20.96 |
| 10th percentile | $31,100 |
| 90th percentile | $59,100 |
| Employment | 170 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.