Office Assistant salary at Grossmont Union High

The average office assistant salary at Grossmont Union High was $60,434 , which is 8 percent higher than the average salary for this job in California, and 46 percent higher than the national average for this job . Office Assistant salaries at Grossmont Union High typically range from $40,151 to $78,096 (25th to 75th percentile). The highest reported office assistant salary was $97,765. There are 32 employees at Grossmont Union High with the job title office assistant.