Senior Library Assistant salary at San Mateo

The average senior library assistant salary at San Mateo was $114,904 , which is 20 percent higher than the average salary for this job in California, and 184 percent higher than the national average for this job . Senior Library Assistant salaries at San Mateo typically range from $103,610 to $125,515 (25th to 75th percentile). The highest reported senior library assistant salary was $125,515. There are 3 employees at San Mateo with the job title senior library assistant.