Trooper First Class salary at Illinois State Toll Highway Authority

The average trooper first class salary at Illinois State Toll Highway Authority was $134,328 , which is 14 percent higher than the average salary for this job in Illinois, and 36 percent higher than the national average for this job . Trooper First Class salaries at Illinois State Toll Highway Authority typically range from $113,825 to $148,040 (25th to 75th percentile). The highest reported trooper first class salary was $249,680. There are 31 employees at Illinois State Toll Highway Authority with the job title trooper first class.