School Administrative Assistant salary at Ontario-Montclair

The average school administrative assistant salary at Ontario-Montclair was $89,641 , which is 5 percent lower than the average salary for this job in California, but 83 percent higher than the national average for this job . School Administrative Assistant salaries at Ontario-Montclair typically range from $82,863 to $99,652 (25th to 75th percentile). The highest reported school administrative assistant salary was $111,895. There are 34 employees at Ontario-Montclair with the job title school administrative assistant.