The average custodial salary at Buna Isd was $18,114 , 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 Buna Isd typically range from $16,544 to $19,640 (25th to 75th percentile). The highest reported custodial salary was $24,291. There are 15 employees at Buna Isd with the job title custodial.