The average custodial salary at Whitney Isd was $18,065 , which is 31 percent lower than the average salary for this job in Texas, and 45 percent lower than the national average for this job . Custodial salaries at Whitney Isd typically range from $16,224 to $19,680 (25th to 75th percentile). The highest reported custodial salary was $28,323. There are 13 employees at Whitney Isd with the job title custodial.