The median age in Fanny Township, Minnesota is 59.3, as per 2021 ACS 5-Year Estimates. Of the total population, 8.05% were under the age of 15, 9.20% aged 15 to 29, 55.17% aged 30 to 64, 25.29% aged 65 to 84, and 2.30% were 85 years of age and older.