Night Custodian salary at San Mateo-Foster City

The average night custodian salary at San Mateo-Foster City was $90,100 , which is 15 percent higher than the average salary for this job in California, and 103 percent higher than the national average for this job . Night Custodian salaries at San Mateo-Foster City typically range from $78,130 to $103,987 (25th to 75th percentile). The highest reported night custodian salary was $115,093. There are 20 employees at San Mateo-Foster City with the job title night custodian.