The average custodial salary at Wylie Isd was $24,707 , which is 6 percent lower than the average salary for this job in Texas, and 25 percent lower than the national average for this job . Custodial salaries at Wylie Isd typically range from $22,717 to $25,098 (25th to 75th percentile). The highest reported custodial salary was $43,890. There are 141 employees at Wylie Isd with the job title custodial.