The average cook salary at St. Louis County was $64,173 , which is 43 percent higher than the average salary for this job in Minnesota, and 69 percent higher than the national average for this job . Cook salaries at St. Louis County typically range from $55,018 to $73,187 (25th to 75th percentile). The highest reported cook salary was $73,186. There are 4 employees at St. Louis County with the job title cook.