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Public10-12High
Sonoma Mountain High (Necessary Small School)
299 Casa Grande Rd., Petaluma, CA 94954·Sonoma County·Petaluma Joint Union High
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Overview
Sonoma Mountain High (Necessary Small School) is a public school (high) serving grades 10-12 in Petaluma, Sonoma County. Part of Petaluma Joint Union High.
School data from the California Department of Education (public & charter 2025-26, private 2024-25).
At a glance
30
Enrollment
10-12
Grades
Public
Sector
Location
299 Casa Grande Rd., Petaluma, CA 94954
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School data from the California Department of Education (public & charter 2025-26, private 2024-25).