Average
#4013 of 8,552 schools in TX
Top 47% in state
Horizon Montessori III - Stem Academy
Elementary School · HORIZON MONTESSORI PUBLIC SCHOOLS
801 N 13TH ST STE 5 A, Harlingen, TX 78550
Enrollment
334
Student-Teacher
14.5:1
Score
6.5
Grades
Pre-K – 8th
Enrollment
334
Student-Teacher
14.5:1
Score
6.5
Grades
Pre-K – 8th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Texas schools
#4,013 of 8,552
In Harlingen
#17 of 32
public schools
In district
#3 of 4
HORIZON MONTESSORI PUBLIC SCHOOLS
School environment
7.0 / 10
Very Good
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Horizon Montessori III - Stem Academy
Elementary School in Harlingen · grades Pre-K – 8th. Start here, then compare fit against nearby and district options.
Harlingen Collegiate H S
0.3 mi away. Use as a geographic alternative in the same move search.
Treasure Hills EL
0.6 mi away. Use as a geographic alternative in the same move search.
About Horizon Montessori III - Stem Academy
Horizon Montessori III - Stem Academy is a public elementary school in Harlingen, TX, part of HORIZON MONTESSORI PUBLIC SCHOOLS. Horizon Montessori III - Stem Academy serves approximately 334 students, and covers grades Pre-K-8th, and has a 14.5:1 student-teacher ratio. Horizon Montessori III - Stem Academy has a current MySchoolScout rating of 6.5 out of 10 and ranks #4,013 of 8,552 schools in TX.
Structured state assessment records for Horizon Montessori III - Stem Academy show 55% math proficiency (multi-year average, 2009-2024) and 58% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 6.5 · Average
- District avg 7.0
- TX avg 6.2
What Parents Should Know
Horizon Montessori III - 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 metricsView breakdown
View breakdown
View breakdown
Horizon Montessori III - Stem Academy — Students at Horizon Montessori III - Stem Academy score 40% proficient, which is below what's typical for similar communities (expected: 42%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
76.9%
Students qualifying for federal meal assistance
Test Scores TX STAAR (2023-24)
Based on 30 test records from TX 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 Horizon Montessori III - Stem Academy Compares
See how Horizon Montessori III - Stem Academy 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
801 N 13TH ST STE 5 A, Harlingen, TX 78550
Nearby Alternatives
Families considering Horizon Montessori III - Stem Academy may also want to explore other elementary schools in the area. IDEA ACADEMY SAN BENITO (rated 7.1/10, 0.9 miles away, in nearby San Benito), which scores slightly higher. Another option is HOUSTON EL (rated 5.7/10, 1.7 miles away), with a comparable rating. Additionally, BONHAM EL (rated 5.5/10, 2.0 miles away), with a comparable rating. For more schools in Harlingen, see our Harlingen schools guide .
Nearby Schools
20 within 1.9 mi| School | Distance | Rating |
|---|---|---|
| HARLINGEN COLLEGIATE H S Harlingen | 0.3 mi | 8.4 |
| TREASURE HILLS EL Harlingen | 0.6 mi | 5.0 |
| CAMERON CO J J A E P San Benito | 0.7 mi | — |
| CAMERON CO J J A E P Harlingen | 0.7 mi | — |
| CAMERON CO J J A E P Los Fresnos | 0.7 mi | 2.0 |
| CAMERON CO J J A E P Port Isabel | 0.7 mi | — |
| CAMERON CO J J A E P Rio Hondo | 0.7 mi | — |
| HESTER JUVENILE DETENT San Benito | 0.7 mi | 6.9 |
| AMADOR R RODRIGUEZ JUVENILE BOOT CAMP San Benito | 0.7 mi | — |
| CAMERON CO J J A E P San Benito | 0.7 mi | 3.5 |
| SECONDARY ALTER CTR Harlingen | 0.8 mi | 5.2 |
| SOUTH TEXAS ISD RISING SCHOLARS ACADEMY San Benito | 0.9 mi | 9.1 |
| IDEA ACADEMY SAN BENITO San Benito | 0.9 mi | 7.1 |
| IDEA COLLEGE PREPARATORY SAN BENITO San Benito | 0.9 mi | 7.8 |
| BERTA CABAZA MIDDLE San Benito | 1.2 mi | 3.7 |
| TRIUMPH PUBLIC HIGH SCHOOLS-SAN BENITO San Benito | 1.3 mi | 6.0 |
| COAKLEY MIDDLE Harlingen | 1.7 mi | 4.9 |
| HOUSTON EL Harlingen | 1.7 mi | 5.7 |
| BONHAM EL Harlingen | 2.0 mi | 5.5 |
| VERNON MIDDLE Harlingen | 1.9 mi | 6.4 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 78550 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$51,524
Median Home Value
$120,500
Median Rent
$863/mo
Population
54,169
College Educated
21.7%
Homeownership
52.7%
Avg Commute
18.4 min
Poverty Rate
24.3%
Median Age
33.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| ALL SAINTS CATHOLIC SCHOOL Dallas, TX | 6.5 |
| ANN WHITNEY EL Hamilton, TX | 6.5 |
| AUSTIN EL Harlingen, TX | 6.5 |
| BLANCHE DODD EL Krum, TX | 6.5 |
| BRISCOE EL Houston, TX | 6.5 |
| BURLEY PRI Lufkin, TX | 6.5 |
Frequently Asked Questions
Common questions about Horizon Montessori III - Stem Academy
What grades does Horizon Montessori III - Stem Academy serve?
Horizon Montessori III - Stem Academy serves students in grades Pre-K through 8th.
How many students attend Horizon Montessori III - Stem Academy?
Horizon Montessori III - Stem Academy has an enrollment of approximately 334 students.
What is the student-teacher ratio at Horizon Montessori III - Stem Academy?
The student-teacher ratio at Horizon Montessori III - Stem Academy is 14.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Horizon Montessori III - Stem Academy rank in TX?
Horizon Montessori III - Stem Academy ranks #4,013 of 8,552 schools in TX.
What is Horizon Montessori III - Stem Academy's MySchoolScout rating?
Horizon Montessori III - Stem Academy has a current MySchoolScout rating of 6.5 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 III - Stem Academy?
Based on loaded state assessment records, Horizon Montessori III - Stem Academy has 55% math proficiency (multi-year average, 2009-2024) and 58% reading/ELA proficiency (multi-year average, 2009-2024).
Is Horizon Montessori III - Stem Academy a charter school?
Yes, Horizon Montessori III - 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 III - Stem Academy a Title I school?
No, Horizon Montessori III - Stem Academy is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Horizon Montessori III - Stem Academy?
76.9% of students at Horizon Montessori III - 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.
Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- Pre-K – 8th
- Enrollment
- 334
- Student-Teacher Ratio
- 14.5:1
- Teachers (FTE)
- 23
- Free/Reduced Lunch
- 76.9%
- Type
- regular
- Setting
- Small City
- County
- Cameron County
- Chronic Absenteeism (SY 2022-23)
- 12.9%
- Phone
- (956) 423-8207
Resources & Links
District
HORIZON MONTESSORI PUBLIC SCHOOLS- District Enrollment
- 1,424
- Schools in District
- 4
- Per-Pupil Spending
- $11,155
- District Rank
- #3 of 4
Other Schools in This District
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
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