The median age in North Ottawa Township, Minnesota is 60.8, as per 2021 ACS 5-Year Estimates. Of the total population, 10.81% were under the age of 15, 8.11% aged 15 to 29, 32.43% aged 30 to 64, 40.54% aged 65 to 84, and 8.11% were 85 years of age and older.