The median age in Codyville Plantation, Maine is 21.9, as per 2021 ACS 5-Year Estimates. Of the total population, 20.00% were under the age of 15, 35.00% aged 15 to 29, 45.00% aged 30 to 64, 0.00% aged 65 to 84, and 0.00% were 85 years of age and older.