The average aide salary at Joplin Schools was $45,954 , which is 99 percent higher than the average salary for this job in Missouri, and 42 percent higher than the national average for this job . Aide salaries at Joplin Schools typically range from $40,200 to $51,474 (25th to 75th percentile). The highest reported aide salary was $73,011. There are 14 employees at Joplin Schools with the job title aide.