The median age in Waukesha Town, Wisconsin is 49.2, as per 2021 ACS 5-Year Estimates. Of the total population, 12.71% were under the age of 15, 16.46% aged 15 to 29, 52.94% aged 30 to 64, 15.48% aged 65 to 84, and 2.40% were 85 years of age and older.