The average deputy salary at Smith County was $30,804 , which is 32 percent lower than the average salary for this job in Tennessee, and 59 percent lower than the national average for this job . Deputy salaries at Smith County typically range from $29,952 to $34,952 (25th to 75th percentile). The highest reported deputy salary was $54,000. There are 19 employees at Smith County with the job title deputy.