The median age in South Red River Township, Minnesota is 25.5, as per 2021 ACS 5-Year Estimates. Of the total population, 42.86% were under the age of 15, 7.14% aged 15 to 29, 32.14% aged 30 to 64, 17.86% aged 65 to 84, and 0.00% were 85 years of age and older.