Library Asst-Advanced Level salary at Contra Costa County

The average library asst-advanced level salary at Contra Costa County was $82,542 , which is 4 percent lower than the average salary for this job in California, and 4 percent lower than the national average for this job . Library Asst-Advanced Level salaries at Contra Costa County typically range from $67,795 to $89,791 (25th to 75th percentile). The highest reported library asst-advanced level salary was $111,529. There are 6 employees at Contra Costa County with the job title library asst-advanced level.