The average cook salary at Jackson County was $35,627 , which is 51 percent higher than the average salary for this job in Missouri, but 6 percent lower than the national average for this job . Cook salaries at Jackson County typically range from $36,674 to $41,062 (25th to 75th percentile). The highest reported cook salary was $42,832. There are 5 employees at Jackson County with the job title cook.