The average aide salary at Ava Elem. was $42,558 , which is 84 percent higher than the average salary for this job in Missouri, and 32 percent higher than the national average for this job . Aide salaries at Ava Elem. typically range from $41,930 to $48,122 (25th to 75th percentile). The highest reported aide salary was $51,487. There are 6 employees at Ava Elem. with the job title aide.