Serving 413 students in grades Prekindergarten-5, Isaac Del Rosario ranks in the top 50% of all schools in Puerto Rico for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 24% (which is higher than the Puerto Rico state average of 23%). The percentage of students achieving proficiency in reading/language arts is 33% (which is lower than the Puerto Rico state average of 36%).
The student-teacher ratio of 11:1 is higher than the Puerto Rico state level of 10:1.
Quick Facts (2025-26)
- Grades: Prekindergarten-5
- Enrollment: 413 students
- Student-Teacher Ratio: 11:1
- Overall Testing Rank: Top 50% in PR
- Math Proficiency: 24% (Top 50%)
- Reading Proficiency: 33% (Btm 50%)
- Science Proficiency: 11-19% (Btm 50%)
- Source: National Center for Education Statistics (NCES), PR Dept. of Education
Top Rankings
Isaac Del Rosario ranks among the top 20% of public schools in Puerto Rico for:
Category
Attribute
Percent Eligible For Free Lunch
School Overview
Isaac Del Rosario's student population of 413 students has declined by 30% over five school years.
The teacher population of 39 teachers has declined by 9% over five school years.
Grades Offered
Grades Prekindergarten-5
(No virtual instruction)
(No virtual instruction)
Total Students
413 students
Gender %
Total Classroom Teachers
39 teachers
School Rankings
Isaac Del Rosario ranks within the top 50% of all 839 schools in Puerto Rico (based off of combined math and reading proficiency testing data).
The diversity score of Isaac Del Rosario is 0.00, which is less than the diversity score at state average of 0.01. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#383 out of 839 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
24%
23%
Reading/Language Arts Test Scores (% Proficient)
33%
36%
Science Test Scores (% Proficient)
11-19%
36%
Student-Teacher Ratio
11:1
10:1
American Indian
n/a
n/a
Asian
n/a
n/a
Hispanic
100%
100%
Black
n/a
n/a
White
n/a
n/a
Hawaiian
n/a
n/a
Two or more races
n/a
n/a
All Ethnic Groups
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
85%
85%
Eligible for Reduced Lunch
7%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), PR Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Isaac Del Rosario's ranking?
Isaac Del Rosario is ranked #383 out of 839 schools, which ranks it among the top 50% of public schools in Puerto Rico.
What percent of students have achieved state testing proficiency in math and reading?
24% of students have achieved math proficiency (compared to the 23% PR state average), while 33% of students have achieved reading proficiency (compared to the 36% PR state average).
How many students attend Isaac Del Rosario?
413 students attend Isaac Del Rosario.
What is the racial composition of the student body?
100% of Isaac Del Rosario students are Hispanic.
What is the student-teacher ratio of Isaac Del Rosario?
Isaac Del Rosario has a student ration of 11:1, which is higher than the Puerto Rico state average of 10:1.
What grades does Isaac Del Rosario offer ?
Isaac Del Rosario offers enrollment in grades Prekindergarten-5 (No virtual instruction).
What school district is Isaac Del Rosario part of?
Isaac Del Rosario is part of Puerto Rico Department Of Education School District.
School Reviews
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