Sanitarium (formerly, Crystal Springs)[2] is an unincorporated community in Napa County, California.

[1] Sanitarium is located 2.5 miles (4.0 km) north of Saint Helena.

[2] The settlement was founded in 1878 by Seventh-day Adventists who opened a sanitarium that they called the Rural Health Retreat at Crystal Springs, later St. Helena Sanitarium, and now St. Helena Hospital.

[2] The Sanitarium post office operated from 1901 to 1970, when it was removed and renamed Deer Park.

This Napa County, California-related article is a stub.