The average aide salary at Belle High was $32,663 , which is 41 percent higher than the average salary for this job in Missouri, and 1 percent higher than the national average for this job . Aide salaries at Belle High typically range from $14,438 to $36,535 (25th to 75th percentile). The highest reported aide salary was $64,883. There are 8 employees at Belle High with the job title aide.