The average intern salary at Story County was $2,948 , which is 10 percent lower than the average salary for this job in Iowa, and 31 percent lower than the national average for this job . Intern salaries at Story County typically range from $2,589 to $3,319 (25th to 75th percentile). The highest reported intern salary was $4,830. There are 7 employees at Story County with the job title intern.