The median age in Stewardson Township, Pennsylvania is 61.5, as per 2021 ACS 5-Year Estimates. Of the total population, 15.62% were under the age of 15, 6.25% aged 15 to 29, 28.12% aged 30 to 64, 45.31% aged 65 to 84, and 4.69% were 85 years of age and older.