The average cook salary at City of Seattle was $56,779 , which is 45 percent higher than the average salary for this job in Washington, and 50 percent higher than the national average for this job . Cook salaries at City of Seattle typically range from $27,285 to $86,272 (25th to 75th percentile). The highest reported cook salary was $86,272. There are 2 employees at City of Seattle with the job title cook.