The median age in Kelliher Township, Minnesota is 28.9, as per 2021 ACS 5-Year Estimates. Of the total population, 4.69% were under the age of 15, 47.89% aged 15 to 29, 32.86% aged 30 to 64, 12.68% aged 65 to 84, and 1.88% were 85 years of age and older.