Mountain House, California

Mountain House, California
Coordinates: 37°46′26″N 121°32′39″W / 37.77389°N 121.54417°W / 37.77389; -121.54417
CountryUnited States
StateCalifornia
CountySan Joaquin
EstablishedMay 14, 2001
Incorporated (city)July 1, 2024 (2024-07-01)
Government
 • TypeCouncil Manager
Area
 • Total
7.441 sq mi (19.271 km2)
 • Land7.436 sq mi (19.259 km2)
 • Water0.0046 sq mi (0.012 km2)  0.06%
Elevation
82 ft (25 m)
Population
 (2020)
 • Total
24,499
 • Estimate 
(2025)
28,795
 • Density3,294.7/sq mi (1,272.1/km2)
Time zoneUTC−8 (Pacific Time Zone)
 • Summer (DST)UTC−7 (PDT)
ZIP codes
95391
Area code209
FIPS code06-49582
GNIS feature IDs1888888, 2628761
WebsiteOfficial website

Mountain House is a city on the western edge of San Joaquin County, California, United States, lying just east of the historical waystop Mountain House in Alameda County. The planned community was originally approved by the San Joaquin County Board of Supervisors in 1994 and construction was officially started in 2001. Mountain House was then incorporated in 2024. As of the 2020 census, when Mountain House was still classified as a census-designated place, the population was 24,499.