The median age in Campbell Township, Minnesota is 39.3, as per 2021 ACS 5-Year Estimates. Of the total population, 18.64% were under the age of 15, 6.78% aged 15 to 29, 74.58% aged 30 to 64, 0.00% aged 65 to 84, and 0.00% were 85 years of age and older.