Mountain House is a planned community in San Joaquin County, California. It is located in the East Bay region of the San Francisco Bay Area at the border of the San Joaquin Valley and the San Francisco Bay Area, Mountain House is northwest of Tracy, 10 miles from Livermore, 0.5 miles from Interstate 580 to San Francisco, and about east of San Francisco. The population was 24,499 at the 2020 census. For statistical purposes, the United States Census Bureau has defined Mountain House as a census-designated place (CDP). History The Cholbon triblet of the Northern Valley Yokuts were the original inhabitants of the Mountain House area. Their territory ran along Old River a distributary of the San Joaquin River. In 1849, Thomas Goodall erected a blue denim cloth tent to serve as a midway stopover for gold miners headed from San Francisco to the Sierra Nevada foothills via Altamont Pass. Goodall eventually built an adobe house at the eastern edge of the Diablo Range hills, calling it The Mountain House. Simon Zimmerman later acquired the stop and it became known as Zimmerman's Mountain House and became a well-known way station stop on the way to Stockton. The last remaining settlement buildings were leveled in 1940. In November 1994, the San Joaquin County Board of Supervisors officially approved the new community of Mountain House. In 1996, the master plan was approved. In August 2000, many of the documents controlling the development and growth of Mountain House were adopted and approved by the San Joaquin Board of Supervisors acting as the Mountain House Board of Directors. Mountain House was projected to be a small full-fledged city developed over a 30-year period by the Master Developer Trimark Communities. The community covers in San Joaquin County. The town was planned for 12 distinct neighborhoods including 10 family neighborhoods and two age-restricted neighborhoods, each organized around a center containing a neighborhood park, a K-8 school, and a small commercial area. Construction began in 2001, but growth slowed down to about 50 permits per year because of the Great Recession in 2008. Development started again with increasing building permits and small land development projects in 2010 and 2011 and has continued at and still continues at a high rate. As of today, Mountain House includes the established villages of Wicklund, Bethany, Altamont, and Questa, along with the developing villages of Hansen, Cordes, and College Park. Some