Service Worker salary at Grand Coulee Dam School District

The average service worker salary at Grand Coulee Dam School District was $40,732 , which is 11 percent lower than the average salary for this job in Washington, and 11 percent lower than the national average for this job . Service Worker salaries at Grand Coulee Dam School District typically range from $31,271 to $46,079 (25th to 75th percentile). The highest reported service worker salary was $62,521. There are 13 employees at Grand Coulee Dam School District with the job title service worker.