The average aide salary at Duello Elem. was $43,345 , which is 88 percent higher than the average salary for this job in Missouri, and 34 percent higher than the national average for this job . Aide salaries at Duello Elem. typically range from $39,209 to $51,209 (25th to 75th percentile). The highest reported aide salary was $64,218. There are 11 employees at Duello Elem. with the job title aide.