The average deputy salary at Knox County was $47,870 , which is 20 percent lower than the average salary for this job in Indiana, and 37 percent lower than the national average for this job . Deputy salaries at Knox County typically range from $43,015 to $61,676 (25th to 75th percentile). The highest reported deputy salary was $68,120. There are 12 employees at Knox County with the job title deputy.