The total population of Millhousen is estimated to be 267 with 159 males (59.55%) and 108 females (40.45%). There are 51 less females than males in Millhousen.
In 2022, the population of Millhousen was 147, a 0.68% increase year-by-year from 2021. Previously, in 2021, Millhousen's population was 146, a decline of 1.35% compared to a population of 148 in 2020.
The median age in Millhousen, IN is 47.6, as per 2021 ACS 5-Year Estimates. Of the total population, 12.41% were under the age of 15, 10.64% aged 15 to 29, 47.87% aged 30 to 64, 27.66% aged 65 to 84, and 1.42% were 85 years of age and older.