Senior Internal Auditor salary at County of San Mateo

The average senior internal auditor salary at County of San Mateo was $126,919 , which is 11 percent lower than the average salary for this job in California, but 47 percent higher than the national average for this job . Senior Internal Auditor salaries at County of San Mateo typically range from $124,647 to $131,440 (25th to 75th percentile). The highest reported senior internal auditor salary was $140,213. There are 5 employees at County of San Mateo with the job title senior internal auditor.