Investigator salary at Franklin County

The average investigator salary at Franklin County was $70,709 , which is 13 percent higher than the average salary for this job in Tennessee, and 8 percent higher than the national average for this job . Investigator salaries at Franklin County typically range from $66,932 to $72,093 (25th to 75th percentile). The highest reported investigator salary was $80,016. There are 6 employees at Franklin County with the job title investigator.