The average clerk salary at Beaver County was $29,363 , which is 32 percent lower than the average salary for this job in Pennsylvania, and 24 percent lower than the national average for this job . Clerk salaries at Beaver County typically range from $27,116 to $40,693 (25th to 75th percentile). The highest reported clerk salary was $40,693. There are 6 employees at Beaver County with the job title clerk.