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Very Good

#1760 of 8,552 schools in TX

Top 21% in state

Horizon Montessori - Stem Academy

Elementary School · HORIZON MONTESSORI PUBLIC SCHOOLS

320 N MAIN ST, Mcallen, TX 78501

Charter

Enrollment

342

Student-Teacher

13.2:1

Score

7.8

Grades

Pre-K – 8th

Data vintage2022-23

How this school compares

Texas schools

#1,760 of 8,552

In Mcallen

#16 of 37

public schools

In district

#2 of 4

HORIZON MONTESSORI PUBLIC SCHOOLS

Equity

9.2 / 10

Excellent

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Horizon Montessori - Stem Academy

7.8/10

Elementary School in Mcallen · grades Pre-K – 8th. Start here, then compare fit against nearby and district options.

Triumph Public High Schools-mcallen

5.3/10

0.2 mi away. Use as a geographic alternative in the same move search.

Wilson EL

5.7/10

0.4 mi away. Use as a geographic alternative in the same move search.

About Horizon Montessori - Stem Academy

Horizon Montessori - Stem Academy is a public elementary school in Mcallen, TX, part of HORIZON MONTESSORI PUBLIC SCHOOLS. Horizon Montessori - Stem Academy serves approximately 342 students, and covers grades Pre-K-8th, and has a 13.2:1 student-teacher ratio. Horizon Montessori - Stem Academy has a current MySchoolScout rating of 7.8 out of 10 and ranks #1,760 of 8,552 schools in TX.

Structured state assessment records for Horizon Montessori - Stem Academy show 63% math proficiency (multi-year average, 2009-2024) and 68% reading/ELA proficiency (multi-year average, 2009-2024).

How it compares0.8 pts above district
  • This school 7.8 · Very Good
  • District avg 7.0
  • TX avg 6.2

What Parents Should Know

Horizon Montessori - Stem Academy is a charter school: publicly funded, but run with more independence than a traditional district school. Many charters are built around a specific model or focus, so it's worth understanding this one's mission, how enrollment works, and how it differs from the district schools nearby.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress7.1Very Good50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change-3.35 pts/yr
Data Period2009–2024
TrendDeclining
Academics8.7Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency49% (2024 STAAR)
Reading/ELA Proficiency65% (2024 STAAR)
Math vs. State Avg+5.4 pts
Reading vs. State Avg+10.7 pts
Overall Proficiency57% (2024 STAAR, Math+ELA)
Expected (poverty-adj.)41% (model expectation from 2024 STAAR)
vs. Expected+16.1 pts
Adjusted Percentile80th
Resources & Environment8.4Excellent20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio13.2:1
Per-Pupil Spending$11,155
Chronic Absenteeism9.9%

Horizon Montessori - Stem Academy — Students at Horizon Montessori - Stem Academy score 57% proficient, which is above what's typical for similar communities (expected: 41%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

78.9%

Students qualifying for federal meal assistance

Test Scores TX STAAR (2023-24)

Math Proficiency 63.4% (multi-year average, 2009-2024)
School
State
43.6% (2024 STAAR)
ELA Proficiency 68.0% (multi-year average, 2009-2024)
School
State
54.3% (2024 STAAR)

Based on 30 test records from TX state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
87%
ELA
92%
2010
Math
82%
ELA
92%
2011
Math
92%
ELA
92%
2012
Math
70%
ELA
80%
2013
Math
79%
ELA
82%
2014
Math
80%
ELA
74%
2015
Math
80%
ELA
71%
2016
Math
86%
ELA
76%
2017
Math
58%
ELA
41%
2018
Math
48%
ELA
47%
2019
Math
48%
ELA
47%
2020*
Math
27%
ELA
47%
2021*
Math
27%
ELA
47%
2022
Math
37.7%
ELA
67.2%
2024
Math
49%
ELA
65%

* 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: 7.1/10.

How Horizon Montessori - Stem Academy Compares

See how Horizon Montessori - Stem Academy performs across key quality dimensions compared to state benchmarks.

Overall Score
7.8/10
79th percentile in TX
Academic
8.7/10
Excellent
Growth
7.1/10
Very Good
Environment
8.4/10
Excellent
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
79%
Teaching Staff
13:1 student-teacher ratio
26 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
9.9%

Programs & Offerings

Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

320 N MAIN ST, Mcallen, TX 78501

Nearby Alternatives

Families considering Horizon Montessori - Stem Academy may also want to explore other elementary schools in the area. MILAM EL (rated 8.9/10, 2.2 miles away), which scores notably higher. Another option is THIGPEN-ZAVALA EL (rated 8.5/10, 1.1 miles away), which scores slightly higher. Additionally, JACKSON EL (rated 7.2/10, 1.6 miles away), with a comparable rating. For more schools in Mcallen, see our Mcallen schools guide .

Nearby Schools

20 within 2.2 mi
School Distance Rating
TRIUMPH PUBLIC HIGH SCHOOLS-MCALLEN Mcallen 0.2 mi 5.3
WILSON EL Mcallen 0.4 mi 5.7
LAMAR ACADEMY Mcallen 0.5 mi 4.6
FIELDS EL Mcallen 0.7 mi 6.3
TRAVIS MIDDLE Mcallen 0.9 mi 7.8
TAYLOR CHRISTIAN SCHOOL Mcallen 1.0 mi
THIGPEN-ZAVALA EL Mcallen 1.1 mi 8.5
ALVAREZ EL Mcallen 1.0 mi 6.4
MEMORIAL H S Mcallen 1.1 mi 7.3
ST PAUL LUTHERAN SCHOOL Mcallen 1.2 mi 6.9
INSTR/GUID CENTER Mcallen 1.2 mi 6.1
MCALLEN H S Mcallen 1.4 mi 8.0
ACHIEVE EARLY COLLEGE H S Mcallen 1.3 mi 9.5
ST JOHNS EPISCOPAL DAY SCHOOL Mcallen 1.4 mi 6.1
CATHEY MIDDLE Mcallen 1.5 mi 7.8
JACKSON EL Mcallen 1.6 mi 7.2
SEGUIN EL Mcallen 1.7 mi 5.9
QUEST COLLEGIATE ACADEMY-MCALLEN Lewisville 1.9 mi 5.6
ESCANDON EL Mcallen 1.8 mi 6.6
MILAM EL Mcallen 2.2 mi 8.9

Neighborhood Census ACS (2019-2023)

Census data for ZIP 78501 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$49,451

Median Home Value

$149,000

Median Rent

$943/mo

Population

59,095

College Educated

26.6%

Homeownership

50.2%

Avg Commute

18.8 min

Poverty Rate

25.3%

Median Age

36.8

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
ARDEN ROAD EL Amarillo, TX 7.8
ARISTOI CLASSICAL ACADEMY-CYPRESS Katy, TX 7.8
BIG SPRINGS EL Garland, TX 7.8
CAVAZOS EL Edinburg, TX 7.8
CHILDRESS EL Childress, TX 7.8
EARLY EL Early, TX 7.8

Frequently Asked Questions

Common questions about Horizon Montessori - Stem Academy

What grades does Horizon Montessori - Stem Academy serve?

Horizon Montessori - Stem Academy serves students in grades Pre-K through 8th.

How many students attend Horizon Montessori - Stem Academy?

Horizon Montessori - Stem Academy has an enrollment of approximately 342 students.

What is the student-teacher ratio at Horizon Montessori - Stem Academy?

The student-teacher ratio at Horizon Montessori - Stem Academy is 13.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Horizon Montessori - Stem Academy rank in TX?

Horizon Montessori - Stem Academy ranks #1,760 of 8,552 schools in TX.

What is Horizon Montessori - Stem Academy's MySchoolScout rating?

Horizon Montessori - Stem Academy has a current MySchoolScout rating of 7.8 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 Horizon Montessori - Stem Academy?

Based on loaded state assessment records, Horizon Montessori - Stem Academy has 63% math proficiency (multi-year average, 2009-2024) and 68% reading/ELA proficiency (multi-year average, 2009-2024).

Is Horizon Montessori - Stem Academy a charter school?

Yes, Horizon Montessori - Stem Academy is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.

Is Horizon Montessori - Stem Academy a Title I school?

No, Horizon Montessori - Stem Academy is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Horizon Montessori - Stem Academy?

78.9% of students at Horizon Montessori - Stem Academy qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
90 Walker's Paradise
Bike Score
55 Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
Pre-K – 8th
Enrollment
342
Student-Teacher Ratio
13.2:1
Teachers (FTE)
26
Free/Reduced Lunch
78.9%
Type
regular
Setting
Midsize City
County
Hidalgo County
Chronic Absenteeism (SY 2022-23)
9.9%

District

HORIZON MONTESSORI PUBLIC SCHOOLS
District Enrollment
1,424
Schools in District
4
Per-Pupil Spending
$11,155
District Rank
#2 of 4

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