Assistant Principal salary at Northwest Isd

The average assistant principal salary at Northwest Isd was $84,827 , which is 3 percent higher than the average salary for this job in Texas, but 13 percent lower than the national average for this job . Assistant Principal salaries at Northwest Isd typically range from $78,454 to $88,586 (25th to 75th percentile). The highest reported assistant principal salary was $105,914. There are 47 employees at Northwest Isd with the job title assistant principal.