It opened at its current location on November 24, 1891, though it had existed at previous locations in Vallejo and Santa Clara since 1884.

The facility's current name dates from 1986.
 Former names include:
California Home for the Care and Training of Feeble Minded Children (1883)
Sonoma State Home (1909)
Sonoma State Hospital (1953)
Sonoma Developmental Center (1986)
History:
1883 - First home opened at White Sulphur Springs near Vallejo.

1884 - Fasking Park, Alameda County.

1885-1891 - The Home was located in Santa Clara, California, near the intersection of Market and Washington Street.

1891 - A new site for the Home was purchased from former State Senator William Hill for $51,000.
 Two railroads ran through the site until World War II.
The superintendent was Dr. Antrim Edgar Osborn.

Superintendents
1891- Antrim Edgar Osborn, M.D.
1900 - William.
P. Lawlor, M.D.
1903 - W. J. G. Dawson, M.D.
1919 - Frederick Otis Butler, M.D.
1949 - M.E.Porter, M.D.
1918 - A Spanish influenza epidemic killed dozens of inmates.
Dr. Lawlor was also killed.

The Home had primarily four types of residents: the mentally handicapped, the epileptic, the physically disabled, and the "psychopathic delinquent."
 From almost the start, the Home was overcrowded.

In 2000 the main building was listed in the National Register of Historic Places.
It opened at its current location on November 24, 1891, though it had existed at previous locations in Vallejo and Santa Clara since 1884.
The facility's current name dates from 1986.  Former names include:
California Home for the Care and Training of Feeble Minded Children (1883)
Sonoma State Home (1909)
Sonoma State Hospital (1953)
Sonoma Developmental Center (1986)
History:
1883 - First home opened at White Sulphur Springs near Vallejo.
1884 - Fasking Park, Alameda County.
1885-1891 - The Home was located in Santa Clara, California, near the intersection of Market and Washington Street.
1891 - A new site for the Home was purchased from former State Senator William Hill for $51,000.  Two railroads ran through the site until World War II. The superintendent was Dr. Antrim Edgar Osborn.
Superintendents
1891- Antrim Edgar Osborn, M.D.
1900 - William. P. Lawlor, M.D.
1903 - W. J. G. Dawson, M.D.
1919 - Frederick Otis Butler, M.D.
1949 - M.E.Porter, M.D.
1918 - A Spanish influenza epidemic killed dozens of inmates. Dr. Lawlor was also killed.
The Home had primarily four types of residents: the mentally handicapped, the epileptic, the physically disabled, and the "psychopathic delinquent."  From almost the start, the Home was overcrowded.
In 2000 the main building was listed in the National Register of Historic Places.
Sonoma Developmental Center