The average custodian salary at Adams Es was $21,861 , which is 17 percent lower than the average salary for this job in Oklahoma, and 69 percent lower than the national average for this job . Custodian salaries at Adams Es typically range from $17,222 to $27,726 (25th to 75th percentile). The highest reported custodian salary was $27,726. There are 3 employees at Adams Es with the job title custodian.