Arroyo Seco Junior High

Middle school·Grades 7-8 Valencia, California·91354
Score
84.0/100
Compare Arroyo Seco Junior High with another school
#212
Among 1,326 California middle schools
#3
In William S. Hart Union High
Top 16%
In California

Score 84.0/100: better than 84% of California middle schools on 2024-25 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2024-25)

% met or exceeded standard on state tests in California, all students. Colored bars are green when the school is at or above the average for similar California schools.

English language arts
69%
Similar California schools ≈ 49%, better than 84% of them
1,172 students tested
Math
55%
Similar California schools ≈ 36%, better than 82% of them
1,174 students tested
Science
52%
Similar California schools ≈ 32%, better than 84% of them
576 students tested
All California schools (ELA / math)
49% / 37%
State average across every school type, 2024-25
All 8 published results by grade and test

As published by California Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsGrade 7Smarter Balanced ELA68.7598
English language artsGrade 8Smarter Balanced ELA68.5574
English language artsAll gradesSmarter Balanced ELA68.61,172
MathGrade 7Smarter Balanced Math52.7600
MathGrade 8Smarter Balanced Math57.7574
MathAll gradesSmarter Balanced Math55.11,174
ScienceGrade 8CAST52.4576
ScienceAll gradesCAST52.4576

School profile

Grades
7-8
Students
1,240
Type
Middle school
Charter school
No
Program
Regular

Students

Enrollment
1,240
Typical middle school: 658
Free or reduced-price lunch
17%
Typical middle school: 72%

District and location

City
Los Angeles County

Contact

Address
27171 North Vista Delgado Dr.
Valencia, CA 91354

"Typical" is the middle (median) middle school in California. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby middle schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

Arroyo Seco Junior High at a glance

Arroyo Seco Junior High is a public middle school in Valencia, California, serving grades 7-8. It is part of the William S. Hart Union High school district. It has about 1,240 students (a typical California middle school has 658). About 17% of students are eligible for free or reduced-price lunch, compared with 72% at a typical California middle school, which is useful context when reading test results.

In 2024-25 state tests, 69% in English language arts (similar schools: 49%) and 55% in math (similar schools: 36%) reached the state standard (% met or exceeded standard). On our score, which compares it only with other California middle schools, it scores 84.0 out of 100: better than 84% of them, ranking #212 of 1,326. Its English language arts result rose by 2 points from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

Compare Arroyo Seco Junior High with another school

Page updated 2026-10-12.