The average teacher salary at Blum Isd was $44,392 , which is 30 percent lower than the average salary for this job in Texas, and 32 percent lower than the national average for this job . Teacher salaries at Blum Isd typically range from $36,970 to $51,710 (25th to 75th percentile). The highest reported teacher salary was $65,802. There are 35 employees at Blum Isd with the job title teacher.