BLS Occupational Employment & Wage Statistics · May 2025
Private Detectives and Investigators in Illinois earn between $38,920 and $97,780, with a mean of $64,440. The national average for this role is $59,697.
| Location | Mean Salary |
|---|---|
| Illinois | $64,440 |
| National Average | $59,697 |
| District of Columbia | $88,260 |
| Oregon | $74,690 |
| Washington | $71,020 |
| Massachusetts | $70,110 |
Bureau of Labor Statistics OEWS, May 2025. Illinois. Hourly wages assume 2,080 hours/year.