The average custodian salary at Spiro Es was $3,250 , which is 88 percent lower than the average salary for this job in Oklahoma, and 95 percent lower than the national average for this job . Custodian salaries at Spiro Es typically range from $1,214 to $5,285 (25th to 75th percentile). The highest reported custodian salary was $5,663. There are 5 employees at Spiro Es with the job title custodian.