The median age in Arthur township, Traverse County, Minnesota is 36.5, as per 2021 ACS 5-Year Estimates. Of the total population, 33.33% were under the age of 15, 7.84% aged 15 to 29, 54.90% aged 30 to 64, 1.96% aged 65 to 84, and 1.96% were 85 years of age and older.