The average auxiliary salary at Buna Isd was $20,446 , which is 16 percent lower than the average salary for this job in Texas, but 470 percent higher than the national average for this job . Auxiliary salaries at Buna Isd typically range from $14,852 to $24,220 (25th to 75th percentile). The highest reported auxiliary salary was $46,708. There are 84 employees at Buna Isd with the job title auxiliary.