Office Assistant salary at San Mateo County Transit District

The average office assistant salary at San Mateo County Transit District was $75,804 , which is 35 percent higher than the average salary for this job in California, and 83 percent higher than the national average for this job . Office Assistant salaries at San Mateo County Transit District typically range from $69,473 to $96,025 (25th to 75th percentile). The highest reported office assistant salary was $99,255. There are 5 employees at San Mateo County Transit District with the job title office assistant.