John A. Rowland High School is a public, four-year high school and International Baccalaureate World School in the city of Rowland Heights, California, United States. It is one of the two high schools in the Rowland Unified School District.
Serving 2,016 students in grades 9-12, John A. Rowland High School ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 46% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 69% (which is higher than the California state average of 47%).
The student-teacher ratio of 24:1 is higher than the California state level of 21:1.
Minority enrollment is 98% of the student body (majority Asian and Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 2,016 students
- Student-Teacher Ratio: 24:1
- Minority Enrollment: 98%
- Graduation Rate: 94% (Top 30% in CA)
- Overall Testing Rank: Top 20%
- Math Proficiency: 46% (Top 30%)
- Reading Proficiency: 69% (Top 20%)
- Science Proficiency: 38% (Top 30%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
John A. Rowland High School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Reading/Language Arts Proficiency
School Overview
John A. Rowland High School's student population of 2,016 students has stayed relatively flat over five school years.
The teacher population of 83 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
2,016 students
Total Classroom Teachers
83 teachers
Year Founded
1964
Colors
Navy Blue, Gold
School Calendar
School Rankings
John A. Rowland High School ranks within the top 20% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of John A. Rowland High School is 0.57, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1862 out of 9523 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
46%
34%
Reading/Language Arts Test Scores (% Proficient)
69%
47%
Science Test Scores (% Proficient)
38%
29%
Student-Teacher Ratio
24:1
21:1
American Indian
n/a
1%
Asian
47%
12%
Hispanic
46%
56%
Black
2%
5%
White
2%
20%
Hawaiian
n/a
n/a
Two or more races
3%
6%
All Ethnic Groups
Graduation Rate
94%
87%
Eligible for Free Lunch
57%
54%
Eligible for Reduced Lunch
11%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Raiders
Frequently Asked Questions
What is John A. Rowland High School's ranking?
John A. Rowland High School is ranked #1862 out of 9,523 schools, which ranks it among the top 20% of public schools in California.
What schools are John A. Rowland High School often compared to?
John A. Rowland High Schoolis often viewed alongside schools like Walnut High School, Nogales High School, Diamond Bar High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
46% of students have achieved math proficiency (compared to the 34% CA state average), while 69% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of John A. Rowland High School?
The graduation rate of John A. Rowland High School is 94%, which is higher than the California state average of 87%.
How many students attend John A. Rowland High School?
2,016 students attend John A. Rowland High School.
What is the racial composition of the student body?
47% of John A. Rowland High School students are Asian, 46% of students are Hispanic, 3% of students are Two or more races, 2% of students are Black, and 2% of students are White.
What is the student-teacher ratio of John A. Rowland High School?
John A. Rowland High School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does John A. Rowland High School offer ?
John A. Rowland High School offers enrollment in grades 9-12
What school district is John A. Rowland High School part of?
John A. Rowland High School is part of Rowland Unified School District.
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