The median age in Chester township, Polk County, Minnesota is 50.8, as per 2021 ACS 5-Year Estimates. Of the total population, 29.51% were under the age of 15, 3.28% aged 15 to 29, 36.07% aged 30 to 64, 31.15% aged 65 to 84, and 0.00% were 85 years of age and older.