The average aide salary at Rolla 31 was $49,423 , which is 114 percent higher than the average salary for this job in Missouri, and 53 percent higher than the national average for this job . Aide salaries at Rolla 31 typically range from $28,746 to $63,006 (25th to 75th percentile). The highest reported aide salary was $74,010. There are 13 employees at Rolla 31 with the job title aide.