Arroyo High School is located in San Lorenzo, California, and is part of the San Lorenzo Unified School District. Serving as one of three public high schools for San Lorenzo and parts of San Leandro, its sister high school and cross-town rival is San Lorenzo High School.
Serving 1,542 students in grades 9-12, Arroyo High School ranks in the top 50% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 35% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 59% (which is higher than the California state average of 47%).
The student-teacher ratio of 25:1 is higher than the California state level of 21:1.
Minority enrollment is 92% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2025)
- Grades: 9-12
- Enrollment: 1,542 students
- Student-Teacher Ratio: 25:1
- Minority Enrollment: 92%
- Graduation Rate: 95% (Top 30% in CA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 35% (Top 50%)
- Reading Proficiency: 59% (Top 30%)
- Science Proficiency: 39% (Top 30%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Arroyo High School ranks among the top 20% of public schools in California for:
Category
Attribute
Most improved public schools
Diversity
School Overview
Arroyo High School's student population of 1,542 students has declined by 15% over five school years.
The teacher population of 62 teachers has declined by 20% over five school years.
Grades Offered
Grades 9-12
Total Students
1,542 students
Gender %
Total Classroom Teachers
62 teachers
Year Founded
1955
Colors
White, Black, Red
School Calendar
School Rankings
Arroyo High School ranks within the top 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Arroyo High School is 0.66, which is more 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
#2981 out of 9523 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
35%
34%
Reading/Language Arts Test Scores (% Proficient)
59%
47%
Science Test Scores (% Proficient)
39%
29%
Student-Teacher Ratio
25:1
21:1
American Indian
1%
1%
Asian
33%
12%
Hispanic
48%
56%
Black
5%
5%
White
8%
20%
Hawaiian
2%
n/a
Two or more races
3%
6%
All Ethnic Groups
Graduation Rate
95%
87%
Eligible for Free Lunch
49%
54%
Eligible for Reduced Lunch
20%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Don
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Arroyo High School's ranking?
Arroyo High School is ranked #2981 out of 9,523 schools, which ranks it among the top 50% of public schools in California.
What schools are Arroyo High School often compared to?
Arroyo High Schoolis often viewed alongside schools like San Lorenzo High School, Kipp King Collegiate High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
35% of students have achieved math proficiency (compared to the 34% CA state average), while 59% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Arroyo High School?
The graduation rate of Arroyo High School is 95%, which is higher than the California state average of 87%.
How many students attend Arroyo High School?
1,542 students attend Arroyo High School.
What is the racial composition of the student body?
48% of Arroyo High School students are Hispanic, 33% of students are Asian, 8% of students are White, 5% of students are Black, 3% of students are Two or more races, 2% of students are Hawaiian, and 1% of students are American Indian.
What is the student-teacher ratio of Arroyo High School?
Arroyo High School has a student ration of 25:1, which is higher than the California state average of 21:1.
What grades does Arroyo High School offer ?
Arroyo High School offers enrollment in grades 9-12
What school district is Arroyo High School part of?
Arroyo High School is part of San Lorenzo Unified School District.
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