Trooper salary at State Police of Illinois

The average trooper salary at State Police of Illinois was $75,185 , which is 4 percent lower than the average salary for this job in Illinois, and 33 percent lower than the national average for this job . Trooper salaries at State Police of Illinois typically range from $55,117 to $89,732 (25th to 75th percentile). The highest reported trooper salary was $143,675. There are 93 employees at State Police of Illinois with the job title trooper.