Office Assistant salary at Contra Costa County Office of Education

The average office assistant salary at Contra Costa County Office of Education was $23,746 , which is 58 percent lower than the average salary for this job in California, and 43 percent lower than the national average for this job . Office Assistant salaries at Contra Costa County Office of Education typically range from $14,831 to $32,662 (25th to 75th percentile). The highest reported office assistant salary was $38,697. There are 5 employees at Contra Costa County Office of Education with the job title office assistant.