The average aide salary at Osage Middle was $44,682 , which is 93 percent higher than the average salary for this job in Missouri, and 38 percent higher than the national average for this job . Aide salaries at Osage Middle typically range from $37,950 to $50,500 (25th to 75th percentile). The highest reported aide salary was $51,950. There are 8 employees at Osage Middle with the job title aide.