The average aide salary at Thayer Elem. was $44,906 , which is 94 percent higher than the average salary for this job in Missouri, and 39 percent higher than the national average for this job . Aide salaries at Thayer Elem. typically range from $34,137 to $55,780 (25th to 75th percentile). The highest reported aide salary was $59,461. There are 7 employees at Thayer Elem. with the job title aide.