Investigator salary at Washington Utilities and Transportation Commission

The average investigator salary at Washington Utilities and Transportation Commission was $66,542 , which is 2 percent higher than the average salary for this job in Washington, and 2 percent higher than the national average for this job . Investigator salaries at Washington Utilities and Transportation Commission typically range from $54,900 to $83,300 (25th to 75th percentile). The highest reported investigator salary was $84,800. There are 13 employees at Washington Utilities and Transportation Commission with the job title investigator.