Background Investigator salary at City of Frederick

The average background investigator salary at City of Frederick was $53,749 , which is 6 percent higher than the average salary for this job in Maryland, and 17 percent higher than the national average for this job . Background Investigator salaries at City of Frederick typically range from $44,282 to $69,435 (25th to 75th percentile). The highest reported background investigator salary was $69,435. There are 3 employees at City of Frederick with the job title background investigator.