Skip to main content

Very Good

#2618 of 9,539 schools in CA

Top 27% in state

Arroyo High

High School · San Lorenzo Unified

15701 Lorenzo Ave., San Lorenzo, CA 94580

Enrollment

1,542

Student-Teacher

25.3:1

Score

7.5

Grades

9th – 12th

Data vintage2022-23

How this school compares

California schools

#2,618 of 9,539

In San Lorenzo

#3 of 11

public schools

In district

#1 of 16

San Lorenzo Unified

Academic growth

7.8 / 10

Very Good

School shortlistprofile + nearby

Shortlisting around Arroyo High?

Use this profile as one decision point, then compare nearby options, source confidence, and commute fit before picking a neighborhood around it.

Shortlist starter

Start with these real page-level signals, then use the full table and map below.

Arroyo High

7.5/10

High School in San Lorenzo · grades 9th – 12th. Start here, then compare fit against nearby and district options.

Grant Elementary

5.2/10

0.2 mi away. Use as a geographic alternative in the same move search.

Redwood Christian Middle School and High School

6.3/10

0.3 mi away. Use as a geographic alternative in the same move search.

About Arroyo High

Arroyo High is a public high school in San Lorenzo, CA, part of San Lorenzo Unified. Arroyo High serves approximately 1,542 students, and covers grades 9th-12th, and has a 25.3:1 student-teacher ratio. Arroyo High has a current MySchoolScout rating of 7.5 out of 10 and ranks #2,618 of 9,539 schools in CA.

Structured state assessment records for Arroyo High show 45% math proficiency (multi-year average, 2009-2024) and 57% reading/ELA proficiency (multi-year average, 2009-2024).

How it compares1.5 pts above district
  • This school 7.5 · Very Good
  • District avg 6.0
  • CA avg 6.5

What Parents Should Know

Arroyo High runs 25.3:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress7.8Very Good25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data12
Annual Change-0.86 pts/yr
Data Period2009–2024
TrendStable
Academics7.5Very Good25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency30.3% (2024 CAASPP)
Reading/ELA Proficiency52.8% (2024 CAASPP)
Math vs. State Avg+2.3 pts
Reading vs. State Avg-3.1 pts
Overall Proficiency42% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)36% (model expectation from 2024 CAASPP)
vs. Expected+5.8 pts
Adjusted Percentile63th
College Readiness8.8Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate96%
AP Participation41.8%
IB ProgramNo
Resources & Environment5.1Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio25.3:1
Per-Pupil Spending$17,124
Chronic Absenteeism18.1%

Arroyo High — Students at Arroyo High score 42% proficient, which is above what's typical for similar communities (expected: 36%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

68.6%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 44.6% (multi-year average, 2009-2024)
School
State
31.8% (2024 CAASPP)
ELA Proficiency 57.3% (multi-year average, 2009-2024)
School
State
51.5% (2024 CAASPP)

Based on 26 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
30%
ELA
30%
2010
Math
64%
ELA
64%
2011
Math
71%
ELA
69%
2012
Math
65%
ELA
58%
2013
Math
67%
ELA
61%
2014
Math
30%
ELA
47%
2015
Math
42%
ELA
64%
2016
Math
47%
ELA
64%
2017
Math
33%
ELA
66%
2018
Math
35%
ELA
58%
2019
Math
35%
ELA
58%
2024
Math
30.3%
ELA
52.8%

Source: EdFacts (NCES) and state assessment data. Growth score: 7.8/10.

How Arroyo High Compares

See how Arroyo High performs across key quality dimensions compared to state benchmarks.

Overall Score
7.5/10
73th percentile in CA
Academic
7.5/10
Very Good
Growth
7.8/10
Very Good
Environment
5.1/10
Average
AP Courses
4
State avg: 2.6
Sports
24
12 boys' · 12 girls'
Advanced STEM
5/5
Subjects offered
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
69%
Teaching Staff
25:1 student-teacher ratio
61 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
18.1%

Programs & Offerings

AP/IB Programs4 AP courses offered
41.8% participation·State avg: 2.6 AP courses·CRDC 2021-22
Athletics24sports offered
12 boys'·12 girls'·36 teams (incl. JV)·CRDC 2021-22
Advanced STEM Courses5 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22
Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

15701 Lorenzo Ave., San Lorenzo, CA 94580

Nearby Alternatives

Families considering Arroyo High may also want to explore other high schools in the area. KIPP King Collegiate High (rated 9.0/10, 0.8 miles away), which scores notably higher. Another option is East Bay Arts High (rated 5.7/10, 1.1 miles away), a more accessible option. Additionally, San Lorenzo High (rated 5.0/10, 1.1 miles away), a more accessible option. For more schools in San Lorenzo, see our San Lorenzo schools guide .

Nearby Schools

20 within 1.2 mi
School Distance Rating
Grant Elementary San Lorenzo 0.2 mi 5.2
REDWOOD CHRISTIAN MIDDLE SCHOOL AND HIGH SCHOOL San Lorenzo 0.3 mi 6.3
Woodroe Woods School San Leandro 0.5 mi
WOODROE WOODS SCHOOL San Leandro 0.5 mi 6.5
Bay Elementary San Lorenzo 0.7 mi 5.8
Del Rey Elementary San Lorenzo 0.9 mi 5.6
KIPP King Collegiate High San Lorenzo 0.8 mi 9.0
KIPP Summit Academy San Lorenzo 0.8 mi 9.4
Washington Manor Middle San Leandro 0.8 mi 6.0
LEA'S CHRISTIAN SCHOOL San Lorenzo 0.8 mi 7.1
Lea's Christian San Lorenzo 0.8 mi
Bohannon Middle San Lorenzo 1.0 mi 5.3
Hesperian Elementary San Lorenzo 1.2 mi 4.4
San Lorenzo High San Lorenzo 1.1 mi 5.0
East Bay Arts High San Lorenzo 1.1 mi 5.7
Dayton Elementary San Leandro 1.1 mi 5.8
Monroe Elementary San Leandro 1.4 mi 6.2
Lorenzo Manor Elementary Hayward 1.1 mi 4.5
Corvallis Elementary San Leandro 1.4 mi 3.9
Colonial Acres Elementary Hayward 1.2 mi 3.2

Neighborhood Census ACS (2019-2023)

Census data for ZIP 94580 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$110,106

Median Home Value

$820,100

Median Rent

$2,164/mo

Population

28,866

College Educated

25.7%

Homeownership

73.6%

Avg Commute

33 min

Poverty Rate

6.9%

Median Age

41.6

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Baldwin Park High Baldwin Park, CA 7.5
Chatsworth Charter High Chatsworth, CA 7.5
Encinal Junior/Senior High Alameda, CA 7.5
Hillcrest High Riverside, CA 7.5
Irvine High Irvine, CA 7.5
La Jolla High La Jolla, CA 7.5

Frequently Asked Questions

Common questions about Arroyo High

What grades does Arroyo High serve?

Arroyo High serves students in grades 9th through 12th.

How many students attend Arroyo High?

Arroyo High has an enrollment of approximately 1,542 students.

What is the student-teacher ratio at Arroyo High?

The student-teacher ratio at Arroyo High is 25.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Arroyo High rank in CA?

Arroyo High ranks #2,618 of 9,539 schools in CA.

What is Arroyo High's MySchoolScout rating?

Arroyo High has a current MySchoolScout rating of 7.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Arroyo High?

Based on loaded state assessment records, Arroyo High has 45% math proficiency (multi-year average, 2009-2024) and 57% reading/ELA proficiency (multi-year average, 2009-2024).

Is Arroyo High a charter school?

No, Arroyo High is not a charter school. It is a traditional public school operated by the local school district.

Is Arroyo High a Title I school?

No, Arroyo High is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Arroyo High?

68.6% of students at Arroyo High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
57 Somewhat Walkable
Transit Score
39 Some Transit
Bike Score
64 Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
9th – 12th
Enrollment
1,542
Student-Teacher Ratio
25.3:1
Teachers (FTE)
61
Free/Reduced Lunch
68.6%
Type
regular
Setting
Large Suburb
County
Alameda County
Chronic Absenteeism (SY 2022-23)
18.1%
4-Year Graduation
96.0%

District

San Lorenzo Unified
District Enrollment
8,123
Schools in District
17
Per-Pupil Spending
$17,124
District Rank
#1 of 16

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

Related reading

Get school insights in your inbox

New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.

We respect your privacy. Unsubscribe at any time.