The median age in Andrea Township, Minnesota is 45.5, as per 2021 ACS 5-Year Estimates. Of the total population, 15.09% were under the age of 15, 1.89% aged 15 to 29, 50.94% aged 30 to 64, 32.08% aged 65 to 84, and 0.00% were 85 years of age and older.