Serving 1,239 students in grades 7-8, Arroyo Seco Junior 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 49% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 68% (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 62% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 7-8
- Enrollment: 1,239 students
- Student-Teacher Ratio: 24:1
- Minority Enrollment: 62%
- Overall Testing Rank: Top 20% in CA
- Math Proficiency: 49% (Top 30%)
- Reading Proficiency: 68% (Top 20%)
- Science Proficiency: 52% (Top 20%)
- Attendance Zone: Arroyo Seco Junior High serves the northeast part of Valencia, CA, covering an attendance area of approximately 44 square miles. Families within this zone can expect a typical drive of 10-12 minutes to the school, with the furthest edge being about 13.7 miles away.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Arroyo Seco Junior High School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Arroyo Seco Junior High School's student population of 1,239 students has stayed relatively flat over five school years.
The teacher population of 51 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 7-8
Total Students
1,239 students
Total Classroom Teachers
51 teachers
Year Founded
1960
School Motto
Diversity is our strength. Unity is our goal.
School Rankings
Arroyo Seco Junior 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 Arroyo Seco Junior High School is 0.70, 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
#1745 out of 9523 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
49%
34%
Reading/Language Arts Test Scores (% Proficient)
68%
47%
Science Test Scores (% Proficient)
52%
29%
Student-Teacher Ratio
24:1
21:1
American Indian
1%
1%
Asian
13%
12%
Hispanic
38%
56%
Black
3%
5%
White
38%
20%
Two or more races
7%
6%
All Ethnic Groups
Chronically Absent Students
(22-23)12.8%
27.7%
Eligible for Free Lunch
16%
54%
Eligible for Reduced Lunch
1%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Arroyo Seco Junior High School's ranking?
Arroyo Seco Junior High School is ranked #1745 out of 9,523 schools, which ranks it among the top 20% of public schools in California.
What schools are Arroyo Seco Junior High School often compared to?
Arroyo Seco Junior High Schoolis often viewed alongside schools like Rio Norte Junior High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
49% of students have achieved math proficiency (compared to the 34% CA state average), while 68% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Arroyo Seco Junior High School?
1,239 students attend Arroyo Seco Junior High School.
What is the racial composition of the student body?
38% of Arroyo Seco Junior High School students are Hispanic, 38% of students are White, 13% of students are Asian, 7% of students are Two or more races, 3% of students are Black, and 1% of students are American Indian.
What is the student-teacher ratio of Arroyo Seco Junior High School?
Arroyo Seco Junior High School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does Arroyo Seco Junior High School offer ?
Arroyo Seco Junior High School offers enrollment in grades 7-8
What school district is Arroyo Seco Junior High School part of?
Arroyo Seco Junior High School is part of William S. Hart Union High School District.
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