Arroyo Seco Junior High School

27171 North Vista Delgado Dr.
Valencia, CA 91354
(School attendance zone shown in map)
: 
9/
10
Top 20%
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 (26-27)

  • Grades: 7-8
  • Enrollment: 1,239 students
  • Student-Teacher Ratio: 24:1
  • Minority Enrollment: 62%
  • : Top 20% in CA
  • : 49% (Top 30%)
  • : 68% (Top 20%)
  • : 52% (Top 20%)
  • : 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
Reading/Language Arts 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

Showing 2015–2025. Full 39-year historical data available below ↓

Total Classroom Teachers
51 teachers

Showing 2014–2025. Full 39-year historical data available below ↓

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.
This School
State Level (CA)
#1745 out of 9523 schools
(Top 20%)

Showing 2011–2023. Full 14-year historical data available below ↓

49%
34%

Showing 2011–2023. Full 14-year historical data available below ↓

68%
47%
52%
29%
Student-Teacher Ratio
24:1
21:1

Showing 2014–2025. Full 39-year historical data available below ↓

American Indian
1%
1%
Asian
13%
12%

Showing 2015–2025. Full 38-year historical data available below ↓

Hispanic
38%
56%

Showing 2015–2025. Full 38-year historical data available below ↓

Black
3%
5%

Showing 2015–2025. Full 38-year historical data available below ↓

White
38%
20%

Showing 2015–2025. Full 38-year historical data available below ↓

Two or more races
7%
6%

Showing 2015–2025. Full 17-year historical data available below ↓

All Ethnic Groups
62%
0.70

Showing 2015–2025. Full 38-year historical data available below ↓

(22-23)
12.8%
27.7%
Eligible for Free Lunch
16%
54%

Showing 2015–2025. Full 34-year historical data available below ↓

Eligible for Reduced Lunch
1%
8%

Showing 2013–2025. Full 27-year historical data available below ↓

School Statewide Testing
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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Quick Facts (26-27)

  • Grades: 7-8
  • Enrollment: 1,239 students
  • Student-Teacher Ratio: 24:1
  • Minority Enrollment: 62%
  • : Top 20%
  • : 49% (Top 30%)
  • : 68% (Top 20%)
  • : 52% (Top 20%)
  • : 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

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