The average aide salary at Morgan Co. High was $41,154 , which is 78 percent higher than the average salary for this job in Missouri, and 27 percent higher than the national average for this job . Aide salaries at Morgan Co. High typically range from $19,074 to $48,582 (25th to 75th percentile). The highest reported aide salary was $81,331. There are 7 employees at Morgan Co. High with the job title aide.