
Millhousen
- County:
- Decatur County
- County Seat:
- No
- Area (mi²):
- 0.901
- State:
- Indiana
Millhousen is a town located in Decatur County, Indiana. Millhousen has a 2025 population of 146. Millhousen is currently declining at a rate of -0.68% annually and its population has decreased by -2.67% since the most recent census, which recorded a population of 150 in 2020.
The average household income in Millhousen is $82,588 with a poverty rate of 5.58%. The median age in Millhousen is 48 years: 47.4 years for males, and 50.9 years for females.