The Tamalpais Union High School District or TUHSD provides high school education to students residing in ten elementary districts in central and southern Marin County, California and parts of West Marin.

The headquarters are on the property of Redwood High School in Larkspur, California.

[1][2][3] Feeder school districts include: Bolinas-Stinson Union, Kentfield, Lagunitas, Larkspur-Corte Madera, Mill Valley, Nicasio, Reed Union, Ross, Ross Valley and Sausalito Marin City school districts.

[4][5] Communities within the district include:[6] The three comprehensive high schools and the communities in their attendance areas (with ZIP Codes) are: Two alternative high schools serve the entire district: Tamalpais, Redwood, and Archie Williams are California Distinguished Schools.

San Andreas has been recognized by the State of California as a Model Continuation School.