The average clerk salary at Boone County was $30,282 , which is 24 percent higher than the average salary for this job in Arkansas, but 22 percent lower than the national average for this job . Clerk salaries at Boone County typically range from $25,539 to $38,347 (25th to 75th percentile). The highest reported clerk salary was $38,346. There are 5 employees at Boone County with the job title clerk.