Police Background Investigator salary at Fairfax County

The average police background investigator salary at Fairfax County was $80,342 , which is 20 percent higher than the average salary for this job in Virginia, and 52 percent higher than the national average for this job . Police Background Investigator salaries at Fairfax County typically range from $79,146 to $81,538 (25th to 75th percentile). The highest reported police background investigator salary was $81,538. There are 2 employees at Fairfax County with the job title police background investigator.