The average aide salary at Truman Middle was $41,598 , which is 80 percent higher than the average salary for this job in Missouri, and 29 percent higher than the national average for this job . Aide salaries at Truman Middle typically range from $34,662 to $43,947 (25th to 75th percentile). The highest reported aide salary was $76,339. There are 7 employees at Truman Middle with the job title aide.