Library Assistant Ii salary at San Mateo

The average library assistant ii salary at San Mateo was $65,585 , which is 46 percent higher than the average salary for this job in California, and 216 percent higher than the national average for this job . Library Assistant Ii salaries at San Mateo typically range from $50,941 to $80,228 (25th to 75th percentile). The highest reported library assistant ii salary was $80,228. There are 3 employees at San Mateo with the job title library assistant ii.