Tranquillity High
🇺🇸 Official data · 2025Tranquillity, California 93668 · Golden Plains Unified
#1152 of 1,343 high schools in California
#15572 of 16,910 nationally
About Tranquillity High
Tranquillity High is a public high located in Tranquillity, in the Golden Plains Unified school district of California, United States. It caters for Grades 9–12. In 2025 it enrolled 370 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 18.3 out of 100, placing it in the lower 50% of high schools in United States and 1152nd of 1,343 ranked high schools in California. Its strongest component is students per teacher (51th percentile), and its weakest is math proficiency (5th percentile).
Other published figures: enrollment 370.
There are 2 schools in Tranquillity; Tranquillity High ranks 1st of 2 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)7.5%
- Reading proficiency (30%)37%
- Community advantage (fewer free/reduced-price lunch) (25%)98.4%
- Students per teacher (15%)14.8
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Tranquillity High by the official sources.
- Enrollment
- 370
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 98.4%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 14.8
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 37%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 7.5%
- Share of tested students proficient or above (all students, all grades).
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Schools near Tranquillity High
Closest schools by straight-line distance, with their Success Index (US).
Similar schools
Public high schools in California with a comparable Enrollment.
Sierra High
Tollhouse · Public high · Grades 9–12
367 students
Middle College High
Los Angeles · Public high · Grades 9–12
361 students
Calistoga Junior/Senior High
Calistoga · Public high · Grades 7–12
355 students
E. Los Angeles Renaiss Acad at Esteban E. Torres High #2
Los Angeles · Public high · Grades 9–12
355 students
Academy of the Canyons
Santa Clarita · Public high · Grades 9–12
385 students
Malibu High
Malibu · Public high · Grades 9–12
387 students
Frequently asked questions
Is Tranquillity High a good school?
Tranquillity High has a Success Index (US) of 18.3 out of 100 (Lower 50% of high schools in United States) and ranks #1152 of 1,343 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Tranquillity High rank in California?
Tranquillity High ranks #1152 of 1,343 high schools in California and #15572 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Tranquillity High?
Tranquillity High had 370 students in 2025.
Is Tranquillity High a elementary school or a high school?
Tranquillity High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Tranquillity High?
There are 2 schools within 15 km of Tranquillity High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.