The median age in Cedar township, Marshall County, Minnesota is 35.5, as per 2021 ACS 5-Year Estimates. Of the total population, 30.77% were under the age of 15, 9.89% aged 15 to 29, 41.76% aged 30 to 64, 12.09% aged 65 to 84, and 5.49% were 85 years of age and older.