For the 2026 school year, there are 8 public schools serving 2,880 students in San Lorenzo, PR.
The top-ranked public schools in San Lorenzo, PR are Antonio Fernos Isern, Luis Munoz Rivera San Lorenzo and Jagual Adentro. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
San Lorenzo, PR public schools have an average math proficiency score of 11% (versus the Puerto Rico public school average of 24%), and reading proficiency score of 30% (versus the 35% statewide average). Schools in San Lorenzo have an average ranking of 1/10, which is in the bottom 50% of Puerto Rico public schools.
Minority enrollment is 100% of the student body (majority Hispanic), which is equal to the Puerto Rico public school average of 100% (majority Hispanic).
Best Public Schools in San Lorenzo, PR (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Antonio Fernos Isern
Magnet School
(Math: ≤5% | Reading: 53%)
Rank:
Rank:
6/
Top 50%10
Carr 181 Km 32.5 Bo Quebrada
San Lorenzo, PR 00754
(787) 736-8330
San Lorenzo, PR 00754
(787) 736-8330
Gr: 9-12 | 673 students Student-teacher ratio: 14:1
Rank: #22.
Luis Munoz Rivera San Lorenzo
(Math: 36% | Reading: 25%)
Rank:
Rank:
5/
Bottom 50%10
Calle Luis Munoz Rivera
San Lorenzo, PR 00754
(787) 736-5856
San Lorenzo, PR 00754
(787) 736-5856
Gr: PK-5 | 455 students Student-teacher ratio: 10:1
Rank: #33.
Jagual Adentro
(Math: 6-9% | Reading: 35-39%)
Rank:
Rank:
5/
Bottom 50%10
Carr 181 Ramal 765 Km 2 Bo Jag
San Lorenzo, PR 00754
(787) 736-7877
San Lorenzo, PR 00754
(787) 736-7877
Gr: PK-8 | 282 students Student-teacher ratio: 9:1
Rank: #44.
Dra. Maria T. Delgado De Marcano
(Math: 15% | Reading: 27%)
Rank:
Rank:
4/
Bottom 50%10
Carr 9929 Km 0 Hm 2 Bo Florida
San Lorenzo, PR 00754
(787) 736-0470
San Lorenzo, PR 00754
(787) 736-0470
Gr: K-8 | 353 students Student-teacher ratio: 11:1
Rank: #55.
Carlos Zayas
(Math: 6-9% | Reading: 25-29%)
Rank:
Rank:
3/
Bottom 50%10
Carr 916 Km 4 Hm 4 Cerro Gordo
San Lorenzo, PR 00754
(787) 736-9633
San Lorenzo, PR 00754
(787) 736-9633
Gr: K-8 | 175 students Student-teacher ratio: 12:1 Minority enrollment: 99%
Rank: #66.
Jorge Rosario Del Valle
(Math: 5% | Reading: 30%)
Rank:
Rank:
3/
Bottom 50%10
Carr 181 Km 12 Bo Espino
San Lorenzo, PR 00754
(787) 736-5830
San Lorenzo, PR 00754
(787) 736-5830
Gr: PK-12 | 418 students Student-teacher ratio: 12:1
Rank: #77.
Jose Campeche San Lorenzo
(Math: ≤5% | Reading: 15-19%)
Rank:
Rank:
1/
Bottom 50%10
Calle Emilio Buitrago
San Lorenzo, PR 00754
(787) 736-2701
San Lorenzo, PR 00754
(787) 736-2701
Gr: 9-12 | 315 students Student-teacher ratio: 10:1
Rank: #88.
Generoso Morales Munoz
(Math: ≤1% | Reading: 19%)
Rank:
Rank:
1/
Bottom 50%10
Ave Jose De Diego 58
San Lorenzo, PR 00754
(787) 736-6658
San Lorenzo, PR 00754
(787) 736-6658
Gr: 6-8 | 209 students Student-teacher ratio: 10:1
Frequently Asked Questions
What are the top-ranked public schools in San Lorenzo, PR?
The top-ranked public schools in San Lorenzo, PR include Antonio Fernos Isern, Luis Munoz Rivera San Lorenzo and Jagual Adentro.
How many public schools are located in San Lorenzo?
8 public schools are located in San Lorenzo.
What is the racial composition of students in San Lorenzo?
San Lorenzo public schools minority enrollment is 100% of the student body (majority Hispanic), which is equal to the Puerto Rico public schools average of 100% (majority Hispanic).
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