Sanitarium (formerly, Crystal Springs) is an

unincorporated community An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...

in Napa County,

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

. It lies at an elevation of 587 feet (179 m). Sanitarium is located north of

Saint Helena Saint Helena () is a British overseas territory located in the South Atlantic Ocean. It is a remote volcanic tropical island west of the coast of south-western Africa, and east of Rio de Janeiro in South America. It is one of three constitu ...

. The settlement was founded in 1878 by

Seventh-day Adventists The Seventh-day Adventist Church is an Adventism, Adventist Protestantism, Protestant Christian denomination which is distinguished by its observance of Saturday, the Names of the days of the week#Numbered days of the week, seventh day of the ...

who opened a sanitarium that they called the Rural Health Retreat at Crystal Springs, later St. Helena Sanitarium, and now St. Helena Hospital. The community that developed around the sanitarium was called Sanitarium. The Sanitarium post office operated from 1901 to 1970, when it was removed and renamed Deer Park.

References

Unincorporated communities in Napa County, California Vaca Mountains Populated places established in 1878 1878 establishments in California Unincorporated communities in California {{NapaCountyCA-geo-stub