Internal Affairs Investigator salary at Essex County Sheriff's Department

The average internal affairs investigator salary at Essex County Sheriff's Department was $42,268 , which is 35 percent higher than the average salary for this job in Massachusetts, but 20 percent lower than the national average for this job . Internal Affairs Investigator salaries at Essex County Sheriff's Department typically range from $38,459 to $46,077 (25th to 75th percentile). The highest reported internal affairs investigator salary was $46,076. There are 2 employees at Essex County Sheriff's Department with the job title internal affairs investigator.