The average custodial salary at Vernon Isd was $19,007 , which is 28 percent lower than the average salary for this job in Texas, and 42 percent lower than the national average for this job . Custodial salaries at Vernon Isd typically range from $17,160 to $20,030 (25th to 75th percentile). The highest reported custodial salary was $27,838. There are 18 employees at Vernon Isd with the job title custodial.