The median age in Poplar Grove Township, Minnesota is 48.5, as per 2021 ACS 5-Year Estimates. Of the total population, 22.86% were under the age of 15, 11.43% aged 15 to 29, 41.43% aged 30 to 64, 24.29% aged 65 to 84, and 0.00% were 85 years of age and older.