The average auxiliary salary at Gary Isd was $22,758 , which is 6 percent lower than the average salary for this job in Texas, but 535 percent higher than the national average for this job . Auxiliary salaries at Gary Isd typically range from $16,481 to $28,977 (25th to 75th percentile). The highest reported auxiliary salary was $32,392. There are 12 employees at Gary Isd with the job title auxiliary.