The average aide salary at Oakville was $20,318 , which is 39 percent lower than the average salary for this job in Washington, and 37 percent lower than the national average for this job . Aide salaries at Oakville typically range from $18,281 to $22,860 (25th to 75th percentile). The highest reported aide salary was $30,425. There are 11 employees at Oakville with the job title aide.