The average custodial salary at Graham Isd was $22,073 , which is 16 percent lower than the average salary for this job in Texas, and 33 percent lower than the national average for this job . Custodial salaries at Graham Isd typically range from $20,995 to $22,742 (25th to 75th percentile). The highest reported custodial salary was $38,745. There are 20 employees at Graham Isd with the job title custodial.