
Mountain House
- County:
- Alameda County
- County Seat:
- No
- Area (mi²):
- 4.558
- State:
- California
Mountain House is a CDP located in Alameda County, California. Mountain House has a 2025 population of 27,069. Mountain House is currently growing at a rate of 4.48% annually and its population has increased by 26.57% since the most recent census, which recorded a population of 21,387 in 2020.
The average household income in Mountain House is $186,198 with a poverty rate of 2.68%. The median age in Mountain House is 34.1 years: 32.4 years for males, and 35.6 years for females.