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Arroyo High

Grades 09–12 · San Lorenzo, CA · NCES 063471005845

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15701 Lorenzo Ave. · San Lorenzo, CA 94580

At a glance

Reported students

1,499

NCES CCD 2024–25

Teachers (FTE)

60.85

NCES CCD 2024–25

Student–teacher ratio

24.6:1

Calculated; not a class-size measure

Grades served

09–12

NCES preliminary directory 2025–26

School benchmarks

California high enrollment

74th percentile

Compared with 2,195 same-level schools reporting enrollment.

District median enrollment

434.5

Arroyo High: 1,499 reported students.

State peer staffing position

89th percentile

24.6:1 reported; state peer median 19.2:1. Ratio is not class size.

Historical enrollment and staffing · CRDC 2021–22

These older figures are kept separate from 2024–25 statistics and benchmarks. Differences between years can reflect changes in enrollment, staffing, or reporting scope.

Students
1,775
Teachers (FTE)
65.46
Student–teacher ratio
27.1:1

What the reported data says about Arroyo High

Arroyo High is a public high school serving grades 09–12 in San Lorenzo. It is one of 17 current school records connected to San Lorenzo Unified. NCES reports 1,499 students for 2024–25.

Among 2,195 high schools in California with comparable records, this school is larger than the reported median of 416 students. Its enrollment is at approximately the 74th percentile for that peer group. Size describes the campus, not instructional quality.

The reported student–teacher ratio is 24.6:1, above the California median of 19.2:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.

The largest reported race and ethnicity groups are Hispanic or Latino (49.8%) and Asian (30.9%). English learners represent 9% of enrollment. Students served under IDEA represent 8.1%. These figures help families understand who the school serves; they are not rating inputs.

The 2021–22 civil-rights collection reports AP student enrollment, gifted and talented programming, computer science. The school reported 13 AP courses. Program availability changes, so families should confirm the current catalog and participation rules directly with the school.

Questions worth asking Arroyo High

  1. 1How do the reported 24.6:1 student–teacher ratio and 60.85 teacher FTE translate into actual class sizes by grade?
  2. 2Have the reported academic programs changed since the 2021–22 CRDC collection?
  3. 3What counseling support is available today? The school reported 2.95 counselor FTE in 2021–22.
  4. 4Does community eligibility provide breakfast and lunch to every enrolled student, and are summer meals available?
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Enrollment needs

English learners
9%
Students with disabilities
8.1%
Free/reduced-price lunch
64.6%
Lunch program
Yes under Community Eligibility Option (CEO)

Reported support staff

Counselors (FTE)
2.95
Nurses (FTE)
0
Psychologists (FTE)
0
Social workers (FTE)
0

CRDC 2021–22 full-time-equivalent counts; verify current assignments with the school.

Student demographics

Race and ethnicity share of reported enrollment

  • White7.3%
  • Hispanic49.8%
  • Black5.8%
  • Asian30.9%
  • American Indian / Alaska Native0.5%
  • Native Hawaiian / Pacific Islander1.7%
  • Multiracial3.7%

Race/ethnicity: NCES CCD 2024–25. English learner and disability context: CRDC 2021–22. Lunch eligibility: NCES CCD 2024–25. Privacy rules can produce missing values.

Programs reported by the school

AP student enrollment

Students enrolled

13 distinct courses reported

Gifted and talented

Offered

Computer science

Offered

CRDC 2021–22: the AP flag records student enrollment; gifted and computer-science fields describe reported programs/classes. Confirm current courses and eligibility with the school.

Other schools in San Lorenzo Unified

Start with campuses at the same school level or with similar reported enrollment.

San Lorenzo High

High · Grades 09–12

1,029 reported students

East Bay Arts High

High · Grades 09–12

154 reported students

Royal Sunset (Continuation)

High · Grades 07–12

107 reported students

Bohannon Middle

Middle · Grades 06–08

606 reported students

Hesperian Elementary

Elementary · Grades KG–05

500 reported students

Washington Manor Middle

Middle · Grades 06–08

500 reported students

View all 17 district schools →