Average
#396 of 842 schools in PR
Top 47% in state
Antonio Fernos Isern
High School · PUERTO RICO DEPARTMENT OF EDUCATION
PO BOX 1281, San Lorenzo, PR 00754
Enrollment
666
Student-Teacher
13.9:1
Score
6.5
Grades
9th – 12th
Enrollment
666
Student-Teacher
13.9:1
Score
6.5
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Puerto Rico schools
#396 of 842
In San Lorenzo
#2 of 8
public schools
In district
#396 of 842
PUERTO RICO DEPARTMENT OF EDUCATION
Academic performance
7.0 / 10
Very Good
Shortlisting around Antonio Fernos Isern?
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Antonio Fernos Isern
High School in San Lorenzo · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Generoso Morales Munoz
0.6 mi away. Use as a geographic alternative in the same move search.
Jose Campeche San Lorenzo
0.6 mi away. Use as a geographic alternative in the same move search.
About Antonio Fernos Isern
Antonio Fernos Isern is a public high school in San Lorenzo, PR, part of PUERTO RICO DEPARTMENT OF EDUCATION. Antonio Fernos Isern serves approximately 666 students, and covers grades 9th-12th, and has a 13.9:1 student-teacher ratio. Antonio Fernos Isern has a current MySchoolScout rating of 6.5 out of 10 and ranks #396 of 842 schools in PR.
Structured state assessment records for Antonio Fernos Isern show 9% math proficiency (multi-year average, 2009-2018) and 65% reading/ELA proficiency (multi-year average, 2009-2018).
- This school 6.5 · Average
- District avg 5.7
- PR avg 5.7
What Parents Should Know
The chronic absenteeism rate at Antonio Fernos Isern was 52% in the 2022-23 school year, which is above the national average. Chronic absenteeism (missing 15 or more school days) can affect classroom dynamics and pacing. Parents should ask about the school's attendance support programs and what resources are available to help families address barriers to consistent attendance.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Antonio Fernos Isern — Students at Antonio Fernos Isern score 40% proficient, which is above what's typical for similar communities (expected: 39%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
91.1%
Students qualifying for federal meal assistance
Test Scores PR EDFACTS (2017-18)
Based on 18 test records from PR state assessments. About our data
Proficiency Trend
↑ ImprovingAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.3/10.
How Antonio Fernos Isern Compares
See how Antonio Fernos Isern 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
PO BOX 1281, San Lorenzo, PR 00754
Nearby Alternatives
Families considering Antonio Fernos Isern may also want to explore other high schools in the area. JOSE COLLAZO COLON (rated 6.5/10, 4.2 miles away, in nearby Juncos), with a very similar rating. Another option is DRA. CONCHITA CUEVAS (rated 5.9/10, 3.7 miles away, in nearby Gurabo), with a comparable rating. Additionally, JOSE CAMPECHE SAN LORENZO (rated 5.5/10, 0.6 miles away), with a comparable rating. For more schools in San Lorenzo, see our San Lorenzo schools guide .
Nearby Schools
20 within 4.2 mi| School | Distance | Rating |
|---|---|---|
| GENEROSO MORALES MUNOZ San Lorenzo | 0.6 mi | 4.0 |
| JOSE CAMPECHE SAN LORENZO San Lorenzo | 0.6 mi | 5.5 |
| DRA. MARIA T. DELGADO DE MARCANO San Lorenzo | 0.8 mi | 6.0 |
| LUIS MUNOZ RIVERA SAN LORENZO San Lorenzo | 0.9 mi | 6.8 |
| ROBERTO SILVA MORALES Juncos | 2.5 mi | 7.6 |
| CARLOS ZAYAS San Lorenzo | 3.0 mi | 4.5 |
| JAGUAL ADENTRO San Lorenzo | 3.3 mi | 4.1 |
| PEDRO RIVERA MOLINA Juncos | 3.3 mi | 5.4 |
| CARMEN ARZUAGA DE RIVERA Juncos | 3.3 mi | 7.8 |
| INES MARIA MENDOZA CAGUAS Caguas | 3.4 mi | 7.2 |
| ALFONSO DIAZ LEBRON Juncos | 3.5 mi | 3.6 |
| VIDAL SERRANO Gurabo | 3.6 mi | 6.8 |
| DRA. CONCHITA CUEVAS Gurabo | 3.7 mi | 5.9 |
| VILLA MARINA Gurabo | 3.9 mi | 6.5 |
| MATIAS GONZALEZ GARCIA Gurabo | 3.9 mi | 3.2 |
| JOSE MERCADO Caguas | 3.9 mi | 7.2 |
| ISABEL FLORES Juncos | 4.0 mi | 3.7 |
| SANDALIO MARCANO Caguas | 3.9 mi | 6.5 |
| MARGARITA RIVERA DE JANER Gurabo | 4.1 mi | 4.6 |
| JOSE COLLAZO COLON Juncos | 4.2 mi | 6.5 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 00754 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$21,193
Median Home Value
$115,000
Median Rent
$552/mo
Population
36,822
College Educated
20.1%
Homeownership
73.3%
Avg Commute
29.7 min
Poverty Rate
45%
Median Age
44.1
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| JOSE COLLAZO COLON Juncos, PR | 6.5 |
| LUIS F. CRESPO Camuy, PR | 6.5 |
| NICOLAS SEVILLA Toa Alta, PR | 6.5 |
| INES MARIA MENDOZA DE MUNOZ MARIN CABO ROJO Cabo Rojo, PR | 6.4 |
| RUBEN RODRIGUEZ FIGUEROA Naranjito, PR | 6.6 |
| SEGUNDO RUIZ BELVIS HORMIGUEROS Hormigueros, PR | 6.4 |
Frequently Asked Questions
Common questions about Antonio Fernos Isern
What grades does Antonio Fernos Isern serve?
Antonio Fernos Isern serves students in grades 9th through 12th.
How many students attend Antonio Fernos Isern?
Antonio Fernos Isern has an enrollment of approximately 666 students.
What is the student-teacher ratio at Antonio Fernos Isern?
The student-teacher ratio at Antonio Fernos Isern is 13.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Antonio Fernos Isern rank in PR?
Antonio Fernos Isern ranks #396 of 842 schools in PR.
What is Antonio Fernos Isern's MySchoolScout rating?
Antonio Fernos Isern 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 Antonio Fernos Isern?
Based on loaded state assessment records, Antonio Fernos Isern has 9% math proficiency (multi-year average, 2009-2018) and 65% reading/ELA proficiency (multi-year average, 2009-2018).
Is Antonio Fernos Isern a charter school?
No, Antonio Fernos Isern is not a charter school. It is a traditional public school operated by the local school district.
Is Antonio Fernos Isern a Title I school?
No, Antonio Fernos Isern is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Antonio Fernos Isern?
91.1% of students at Antonio Fernos Isern qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 666
- Student-Teacher Ratio
- 13.9:1
- Teachers (FTE)
- 48
- Free/Reduced Lunch
- 91.1%
- Type
- vocational
- Setting
- Large Suburb
- County
- San Lorenzo Municipio
- Chronic Absenteeism (SY 2022-23)
- 52.0%
- Phone
- (787) 736-8330
- 4-Year Graduation
- 92.0%
Resources & Links
District
PUERTO RICO DEPARTMENT OF EDUCATION- District Enrollment
- 240,910
- Schools in District
- 858
- District Rank
- #396 of 842
How We Rate Schools
Every school receives a composite score from 1 to 10 built from student growth, poverty-adjusted academics, and learning environment — plus college readiness for high schools. Weights vary by school level, with growth counting most in elementary and middle grades. Equity data is shown for context but is not factored into the score. Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
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