Administrative Assistant salary at Costa Mesa

The average administrative assistant salary at Costa Mesa was $121,510 , which is 29 percent higher than the average salary for this job in California, and 62 percent higher than the national average for this job . Administrative Assistant salaries at Costa Mesa typically range from $112,162 to $136,560 (25th to 75th percentile). The highest reported administrative assistant salary was $148,814. There are 7 employees at Costa Mesa with the job title administrative assistant.