Very Good
#507 of 2,006 schools in AZ
Top 25% in state
Mountainside Middle School
Middle School · Scottsdale Unified District (4240)
11256 N 128TH ST, Scottsdale, AZ 85259
Enrollment
545
Student-Teacher
16.5:1
Score
7.6
Grades
6th – 8th
Enrollment
545
Student-Teacher
16.5:1
Score
7.6
Grades
6th – 8th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Arizona schools
#507 of 2,006
In Scottsdale
#31 of 46
public schools
In district
#24 of 30
Scottsdale Unified District (4240)
Academic performance
8.3 / 10
Excellent
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Mountainside Middle School
Middle School in Scottsdale · grades 6th – 8th. Start here, then compare fit against nearby and district options.
Desert Mountain High School
0.2 mi away. Use as a geographic alternative in the same move search.
Basis Scottsdale
0.5 mi away. Use as a geographic alternative in the same move search.
About Mountainside Middle School
Mountainside Middle School is a public middle school in Scottsdale, AZ, part of Scottsdale Unified District (4240). Mountainside Middle School serves approximately 545 students, and covers grades 6th-8th, and has a 16.5:1 student-teacher ratio. Mountainside Middle School has a current MySchoolScout rating of 7.6 out of 10 and ranks #507 of 2,006 schools in AZ.
Structured state assessment records for Mountainside Middle School show 67% math proficiency (multi-year average, 2009-2022) and 73% reading/ELA proficiency (multi-year average, 2009-2022).
- This school 7.6 · Very Good
- District avg 8.0
- AZ avg 5.6
What Parents Should Know
38% of students at Mountainside Middle School were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Mountainside Middle School — Students at Mountainside Middle School score 52% proficient, which is above what's typical for similar communities (expected: 48%).
Test Scores AZ EDFACTS (2021-22)
Based on 28 test records from AZ state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.8/10.
How Mountainside Middle School Compares
See how Mountainside Middle School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
11256 N 128TH ST, Scottsdale, AZ 85259
Nearby Alternatives
Families considering Mountainside Middle School may also want to explore other middle schools in the area. Desert Canyon Middle School (rated 8.3/10, 4.2 miles away), which scores slightly higher. Another option is Mission Montessori Academy's Middle Years Program (rated 7.7/10, 4.0 miles away, in nearby Phoenix), with a very similar rating. Additionally, Fountain Hills Middle School (rated 7.1/10, 4.4 miles away, in nearby Fountain Hls), with a comparable rating. For more schools in Scottsdale, see our Scottsdale schools guide .
Nearby Schools
20 within 4.6 miNeighborhood Census ACS (2019-2023)
Census data for ZIP 85259 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$145,574
Median Home Value
$956,300
Median Rent
$1,769/mo
Population
22,156
College Educated
68.6%
Homeownership
77.5%
Avg Commute
24.7 min
Poverty Rate
3.9%
Median Age
52
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Snowflake Intermediate School Snowflake, AZ | 7.6 |
| Explorer Middle School Phoenix, AZ | 7.5 |
| Orange Grove Middle School Tucson, AZ | 7.7 |
| Corona Foothills Middle School Corona De Tucson, AZ | 7.4 |
| Desert Shadows Middle School Scottsdale, AZ | 7.4 |
| Esperero Canyon Middle School Tucson, AZ | 7.3 |
Frequently Asked Questions
Common questions about Mountainside Middle School
What grades does Mountainside Middle School serve?
Mountainside Middle School serves students in grades 6th through 8th.
How many students attend Mountainside Middle School?
Mountainside Middle School has an enrollment of approximately 545 students.
What is the student-teacher ratio at Mountainside Middle School?
The student-teacher ratio at Mountainside Middle School is 16.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mountainside Middle School rank in AZ?
Mountainside Middle School ranks #507 of 2,006 schools in AZ.
What is Mountainside Middle School's MySchoolScout rating?
Mountainside Middle School has a current MySchoolScout rating of 7.6 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Mountainside Middle School?
Based on loaded state assessment records, Mountainside Middle School has 67% math proficiency (multi-year average, 2009-2022) and 73% reading/ELA proficiency (multi-year average, 2009-2022).
Is Mountainside Middle School a charter school?
No, Mountainside Middle School is not a charter school. It is a traditional public school operated by the local school district.
Is Mountainside Middle School a Title I school?
No, Mountainside Middle School is not currently a Title I school.
Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- 6th – 8th
- Enrollment
- 545
- Student-Teacher Ratio
- 16.5:1
- Teachers (FTE)
- 33
- Type
- regular
- Setting
- Midsize City
- County
- Maricopa County
- Chronic Absenteeism (SY 2022-23)
- 37.6%
- Phone
- (480) 484-5500
Resources & Links
District
Scottsdale Unified District (4240)- District Enrollment
- 20,940
- Schools in District
- 30
- Per-Pupil Spending
- $11,306
- District Rank
- #24 of 30
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