The median age in Teien Township, Minnesota is 44.2, as per 2021 ACS 5-Year Estimates. Of the total population, 31.11% were under the age of 15, 0.00% aged 15 to 29, 24.44% aged 30 to 64, 42.22% aged 65 to 84, and 2.22% were 85 years of age and older.