Office Assistant salary at Williams County

The average office assistant salary at Williams County was $35,655 , which is 7 percent higher than the average salary for this job in North Dakota, but 14 percent lower than the national average for this job . Office Assistant salaries at Williams County typically range from $19,264 to $52,046 (25th to 75th percentile). The highest reported office assistant salary was $66,891. There are 5 employees at Williams County with the job title office assistant.