The average aide salary at Yakima was $23,951 , which is 28 percent lower than the average salary for this job in Washington, and 26 percent lower than the national average for this job . Aide salaries at Yakima typically range from $20,464 to $26,021 (25th to 75th percentile). The highest reported aide salary was $45,985. There are 424 employees at Yakima with the job title aide.