Contra Costa Water District office assistant senior salary

The average Contra Costa Water District office assistant senior salary was $142,411, which is 96 percent higher than the average salary for this job in California, and 126 percent higher then the average salary for this job nationwide. Office Assistant Senior salary in Contra Costa Water District is usually between $138,229 and $144,511 (25th and 75th). The highest office assistant senior salary in Contra Costa Water District was $153,034. There are 10 employees in Contra Costa Water District whose job title is office assistant senior.