The average auxiliary salary at Miami Isd was $31,551 , which is 30 percent higher than the average salary for this job in Texas, and 780 percent higher than the national average for this job . Auxiliary salaries at Miami Isd typically range from $19,872 to $50,000 (25th to 75th percentile). The highest reported auxiliary salary was $64,998. There are 14 employees at Miami Isd with the job title auxiliary.