The average auxiliary salary at Blum Isd was $25,456 , which is 5 percent higher than the average salary for this job in Texas, and 610 percent higher than the national average for this job . Auxiliary salaries at Blum Isd typically range from $14,323 to $38,422 (25th to 75th percentile). The highest reported auxiliary salary was $48,050. There are 15 employees at Blum Isd with the job title auxiliary.