Mountain Sky Middle School
🇺🇸 Official data · 2025Phoenix, Arizona 85023 · Washington Elementary School District (4260)
#91 of 203 middle schools in Arizona
#11595 of 15,369 nationally
About Mountain Sky Middle School
Mountain Sky Middle School is a public middle located in Phoenix, in the Washington Elementary School District (4260) school district of Arizona, United States. It caters for Grades 7–8. In 2025 it enrolled 672 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 31.6 out of 100, placing it in the lower 50% of middle schools in United States and 91st of 203 ranked middle schools in Arizona. Its strongest component is math proficiency (45th percentile), and its weakest is students per teacher (8th percentile).
Other published figures: enrollment 672.
There are 354 schools in Phoenix; Mountain Sky Middle School ranks 156th of 328 scored schools there.
Success Index (US) breakdown
Each component is a percentile against middle schools across United States.
- Math proficiency (30%)40%
- Reading proficiency (30%)38%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)21.7
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 Mountain Sky Middle School by the official sources.
- Enrollment
- 672
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 21.7
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 38%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 40%
- Share of tested students proficient or above (all students, all grades).
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Schools near Mountain Sky Middle School
Closest schools by straight-line distance, with their Success Index (US).
Lookout Mountain School
Phoenix · Public elementary · Grades PK–6
979 students · 931 m away
Hearn Academy The - A Ball Charter School
Phoenix · Charter elementary · Grades K–8
678 students · 1.4 km away
Cactus View Elementary School
Phoenix · Public elementary · Grades PK–6
508 students · 1.7 km away
Constitution Elementary School
Phoenix · Public elementary · Grades PK–6
545 students · 2.6 km away
Thunderbird High School
Phoenix · Public high · Grades 9–12
1,592 students · 2.6 km away
Village Meadows Elementary School
Phoenix · Public elementary · Grades PK–6
441 students · 2.8 km away
Scholars Academy Sunnyslope
Phoenix · Charter elementary · Grades K–8
337 students · 2.8 km away
Kaleidoscope School
Phoenix · Charter elementary · Grades K–8
296 students · 3.0 km away
John Jacobs Elementary School
Phoenix · Public elementary · Grades PK–6
439 students · 3.1 km away
Moon Mountain School
Phoenix · Public elementary · Grades PK–6
474 students · 3.1 km away
Similar schools
Public middle schools in Arizona with a comparable Enrollment.
Sevilla Elementary School-West Campus
Phoenix · Public middle · Grades 4–8
666 students
Mount Elden Middle School
Flagstaff · Public middle · Grades 6–8
678 students
Cholla Middle School
Phoenix · Public middle · Grades 5–8
681 students
Granada Elementary School-East Campus
Phoenix · Public middle · Grades 4–8
683 students
Orange Grove Middle School
Tucson · Public middle · Grades 6–8
683 students
Willis Junior High School
Chandler · Public middle · Grades 7–8
661 students
Frequently asked questions
Is Mountain Sky Middle School a good school?
Mountain Sky Middle School has a Success Index (US) of 31.6 out of 100 (Lower 50% of middle schools in United States) and ranks #91 of 203 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 Mountain Sky Middle School rank in Arizona?
Mountain Sky Middle School ranks #91 of 203 middle schools in Arizona and #11595 of 15,369 nationally on the Success Index (US) (2025 data).
How many students attend Mountain Sky Middle School?
Mountain Sky Middle School had 672 students in 2025.
Is Mountain Sky Middle School a elementary school or a high school?
Mountain Sky Middle School is classified as a middle covering Grades 7–8. It is a public school.
What other schools are near Mountain Sky Middle School?
There are 10 schools within 15 km of Mountain Sky Middle School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.