South Mountain High School
🇺🇸 Official data · 2025Phoenix, Arizona 85040 · Phoenix Union High School District (4286)
#255 of 286 high schools in Arizona
#15491 of 16,910 nationally
About South Mountain High School
South Mountain High School is a public high located in Phoenix, in the Phoenix Union High School District (4286) school district of Arizona, United States. It caters for Grades 9–12. In 2025 it enrolled 2,207 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 18.8 out of 100, placing it in the lower 50% of high schools in United States and 255th of 286 ranked high schools in Arizona. Its strongest component is math proficiency (27th percentile), and its weakest is reading proficiency (13th percentile).
Other published figures: enrollment 2,207.
There are 354 schools in Phoenix; South Mountain High School ranks 237th of 328 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)25%
- Reading proficiency (30%)27%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)20.8
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 South Mountain High School by the official sources.
- Enrollment
- 2,207
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 20.8
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 27%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 25%
- Share of tested students proficient or above (all students, all grades).
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Schools near South Mountain High School
Closest schools by straight-line distance, with their Success Index (US).
Advance U
Phoenix · Charter elementary · Grades K–4
72 students · 817 m away
Irene Lopez School
Phoenix · Public elementary · Grades PK–8
483 students · 895 m away
ASU Preparatory Academy - South Phoenix Primary
Phoenix · Charter elementary · Grades K–4
65 students · 936 m away
Reyes Maria Ruiz Leadership Academy
Phoenix · Charter elementary · Grades PK–6
331 students · 991 m away
ASU Preparatory Academy - South Phoenix High School
Phoenix · Charter high · Grades 7–12
247 students · 1.1 km away
ASU Preparatory Academy - South Phoenix Intermediate
Phoenix · Charter other · Grades PK–12
99 students · 1.1 km away
John F Kennedy Elementary School
Phoenix · Public elementary · Grades PK–4
352 students · 1.6 km away
Cesar E Chavez Community School
Phoenix · Public elementary · Grades PK–8
408 students · 1.6 km away
C O Greenfield School
Phoenix · Public elementary · Grades K–8
453 students · 1.8 km away
Sunland Elementary School
Phoenix · Public elementary · Grades PK–8
573 students · 1.8 km away
Similar schools
Public high schools in Arizona with a comparable Enrollment.
Shadow Ridge High School
Surprise · Public high · Grades 7–12
2,212 students
Boulder Creek High School
Anthem · Public high · Grades 7–12
2,221 students
Copper Canyon High School
Glendale · Public high · Grades 9–12
2,182 students
Alhambra High School
Phoenix · Public high · Grades 9–12
2,169 students
Gila Ridge High School
Yuma · Public high · Grades 9–12
2,249 students
Sunnyside High School
Tucson · Public high · Grades 9–12
2,258 students
Frequently asked questions
Is South Mountain High School a good school?
South Mountain High School has a Success Index (US) of 18.8 out of 100 (Lower 50% of high schools in United States) and ranks #255 of 286 in Arizona. 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 South Mountain High School rank in Arizona?
South Mountain High School ranks #255 of 286 high schools in Arizona and #15491 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend South Mountain High School?
South Mountain High School had 2,207 students in 2025.
Is South Mountain High School a elementary school or a high school?
South Mountain High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near South Mountain High School?
There are 10 schools within 15 km of South Mountain High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.