The average aide salary at Issaquah was $20,745 , which is 38 percent lower than the average salary for this job in Washington, and 36 percent lower than the national average for this job . Aide salaries at Issaquah typically range from $16,537 to $23,728 (25th to 75th percentile). The highest reported aide salary was $91,650. There are 341 employees at Issaquah with the job title aide.