School Profile · Lancaster
Eastside High: Three in four leave college-ready. But suspensions run 2× the state rate.
Eastside is a school of real strengths with one number worth interrogating. Most rating sites pick a side; we think both belong on the same page.
3200 East Avenue J-8, 93535·Antelope Valley Union High·Lancaster·Grades 9-12·2,631 students·68% low-income·2024–25 CAASPP·(661) 946-3800·Website
Scope Score
49
🌱 Building Momentum · Developing
ranked #904 statewide · #6 of 12 in Antelope Valley Union High
Eastside High scores 49 of 100 on SchoolScope's Scope Score — the 48th percentile of 1,739 California high schools (CDE CAASPP 2025).
Measures test performance, attendance, and climate — not arts, community, or your kid. How we score →
Most rating sites would stop at “26% proficient” and call it done. Eastside deserves a closer read. The school sits in Lancaster, where two-thirds of students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.
The headline number: 79.7% of students leave measurably college-ready, versus 35.5% statewide.
The story this school is actually telling
The launchpad · college readiness
79.7%
of students leave measurably college-ready, versus 35.5% statewide.
↑ what most “best schools” lists are measuring
The catch · suspensions
9.6%
of students were suspended, versus 4.0% statewide — worth asking about on a tour.
↓ the part no ranking site shows you
Proficient by 11th grade
26%
State 35%
Graduate
89%
State 88%
Pass an AP exam
80%
State 36%
Of 100 students here: 26 are proficient by 11th grade → 89 graduate → 80 pass an AP exam. The gaps between those bars are the questions to ask.
The 7 things our score weighs
Graduation rate
89.0%
State 87.6%
1.4pp above state avg
Exceeded standard
8.1%
State 15.5%
7.4pp below state avg
College readiness
79.7%
State 35.5%
AP exam pass rate above state avg
Met or exceeded
26.1%
State 34.6%
8.5pp below state avg
Chronic absenteeism
30.4%
State 32.1%
1.7pp below state avg
Suspension rate
9.6%
State 4.0%
5.6pp above state avg
EL proficiency (ELPAC)
9.8%
State 17.7%
7.9pp below state avg
Worth a school visit
Ask about the discipline philosophy and what a typical suspension is for. Numbers can't tell you whether a campus feels strict or chaotic — a visit can.
Where the path goes
The path below follows attendance boundaries — scores shown for each next step.
Estimated K-12 Path
Elementary
Academies of the Antelope…
No score
→
High
Eastside High
49
This school
Estimated K-12 path based on district and proximity. Actual attendance zones may differ. Contact your school district for official feeder information.
Your other options
Private alternatives nearby
Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.
Academy for Advancement of Children With Autism
E Ave H · Nonsectarian · Grades 2-12 · 51 students
9:1Private4.4 mi
Stanza International Academy
Holston Dr · Nonsectarian · Grades 9-12 · 11 students
4:1Private3.4 mi
Stanza International Academy
Holston Dr · Nonsectarian · Grades 9-12 · 9 students
4:1Private3.4 mi
Lancaster Baptist School
E Lancaster Blvd · Amish · Grades Pre-K-12 · 381 students
20:1Private1.3 mi
The community around it
Community Profile
Context — not part of the Scope ScoreStudent demographics
Hispanic68.8%
White3.7%
Asian0.1%
Black22.1%
Other5.3%
GenderFemale 50.0%Male 50.0%
Resources & Access
Enrollment
2,631
1,181 above CA avg (~1,450)
Free/Reduced Lunch
68%
5pp above CA avg (64%)
Student-Teacher Ratio
25:1
4 more students per teacher than CA avg
Per-Pupil Spending
$18,320
District avg: $13,452 · CA avg: $14,815 · School-level · CDE ESSA
EL Proficiency (ELPAC)
9.8% Level 4
Share of English Learners reaching full proficiency
Teacher Salary Range
$50,398 – $133,882
District schedule · CA median ~$98K
At Eastside High in Lancaster, 41.9% of low-income students met or exceeded the ELA standard in 2025, compared to 34.1% district-wide and 38.2% statewide. Eastside High outperforms its district average for low-income students by 7.8 percentage points in ELA. Other subgroups: Low-Income students (7.3% Math proficient); Hispanic students (46.4% ELA proficient). The largest proficiency gap is 41.5 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 413 students tested.
Equity Gaps
Absenteeism · Homeless+33.6pp
64.0% vs 30.4% overall · n=50
Suspension · Foster Youth+18.1pp
27.7% vs 9.6% overall · n=94
ELA · English Learner−41.5pp
2.3% vs 43.8% overall · n=44
2 more gaps by subject
ELA Exceeded · Disabilities−14.5pp
0.0% vs 14.5% overall · n=68
Math · Disabilities−8.4pp
0.0% vs 8.4% overall · n=68
Subgroups with fewer than 15 students are excluded for privacy. Gaps of less than 3 percentage points are not shown.
Subgroup Proficiency
Low-Income413 tested
ELA 41.9%·Math 7.3%· +7.8pp vs district
Hispanic371 tested
ELA 46.4%·Math 8.7%· +7.4pp vs district
Black112 tested
ELA 27.7%·Math 3.6%· +4.1pp vs district
Weighted average across tested grades. Subgroups with fewer than 15 students excluded. Data: CDE CAASPP 2024-25.
Funding Breakdown
Neighborhood Context
Median Income
$61K
$24K below CA median
Median Home Value
$300K
$359K below CA median
Bachelor's+
14%
21pp below CA avg
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2022) · ZIP-level
Whole Child
Teacher experience, college/career readiness, and more. Context only — never part of the Scope Score.
Teacher Experience
10.3 years avg experience
109 teachers · 20% first-year · 6% second-year
Teacher Credentials
76% fully credentialed
5.5% on intern/emergency permit
AP Courses Offered
44 AP courses
192 students qualified via AP exam
Sources: CDE SARC · CDE College/Career Indicator, 2024-25
Community Profile provides context about who attends this school and the resources available. These factors are never part of the Scope Score. Learn why →
For the data nerdsEvery number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
For the data nerds
Every number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
01Score factorsWeighted composite · 2024–25
Graduation rate · 25%
89.0%
↑ vs CA 87.6% · 52th pctile
Exceeded standard · 22%
8.1%
↓ vs CA 15.5% · 42th pctile
College readiness · 20%
79.7%
↑ vs CA 35.5% · 76th pctile
Met or exceeded · 18%
26.1%
↓ vs CA 34.6% · 44th pctile
Chronic absenteeism · 5%
30.4%
↑ vs CA 32.1% · 51th pctile
Suspension rate · 5%
9.6%
↓ vs CA 4.0% · 25th pctile
EL proficiency (ELPAC) · 5%
9.8%
↓ vs CA 17.7% · 39th pctile
02By grade & subgroupCAASPP 2024–25 · % of tested students
| ELA | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 11 | 539 | 14% | 29% | 26% | 30% | 44% | −3 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 11 | 537 | 2% | 7% | 19% | 72% | 8% | −15 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 636 | 1% | 9% | 73% | 17% |
CAST is tested in grades 5, 8, and once in high school — not annually. Not part of the Scope Score.
| Subgroup · ELA | Tested | MET+ | vs district | vs CA |
|---|---|---|---|---|
| Socioeconomically Disadvantaged | 413 | 41.9% | +8 | +4 |
| Hispanic/Latino | 371 | 46.4% | +7 | +8 |
| Black/African American | 112 | 27.7% | +4 | −5 |
03Peer comparison · nearest high schoolssorted by Scope Score
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Eastside High ← | — | 49 | 8.1% | 26.1% | — | 9.6% |
| California average | — | 47 | 15.5% | 34.6% | — | 4.0% |
04More measurescontext · not all part of the Scope Score
Graduation Rate
89.0%
AP Exam Prepared
79.7%
A-G Completion
36.6%
A-G are the 15 courses (across 7 subjects) required for UC/CSU eligibility
College-Going Rate
54.7%
Scope Score history
2019 · 2022 · 2023 · 2024 · 2025 · no testing 2020–21 (COVID) · rank #1006 → #1005 → #1048 → #1054 → #904
Source: CA Dept. of Education · CAASPP 2024–25 · n=1,739 high schools · Data updated 2026-07-03methodology · data updates · CSV · report issue
A low score doesn't tell the whole story. Read: Your School Scored Low — Here's What That Actually Means
Frequently asked questions
Is Eastside High a good high school?
Eastside High has a Scope Score of 49 out of 100, placing it in the 48th percentile of California high schools and ranked #904 statewide. 8.1% of students exceeded the state standard on the 2025 CAASPP assessment, which is 7.4 percentage points below the California average of 15.5%. The Scope Score weights six dimensions for high schools: exceeded standard (43%), met or exceeded (22%), grade 3-to-5 growth (15%), chronic absenteeism (10%), ELPAC English Learner proficiency (5%), and suspension rate (5%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.
What are Eastside High's CAASPP test scores?
On the 2025 CAASPP Smarter Balanced Assessment, 26.1% of students at Eastside High met or exceeded the state standard in ELA and Math combined, and 8.1% exceeded it. The gap between those numbers matters: 18.0% of students are at the proficiency floor, while 8.1% pushed past it. Most rating sites report only the combined "proficient" number. SchoolScope surfaces the exceeded-vs-met split because it reveals whether a school's curriculum challenges students beyond minimum proficiency or paces toward it. 1,076 student-subject combinations were assessed.
How does Eastside High rank in California?
Eastside High ranks #904 among California high schools by Scope Score, placing it in the 48th percentile. This ranking is based on a weighted composite of 2025 CAASPP test performance (exceeded and met rates), chronic absenteeism, and suspension rate. Unlike single-number ratings, the Scope Score shows what drives the ranking so parents can decide what matters most to their family. See full methodology.
What is the attendance and school culture like at Eastside High?
30.4% of students at Eastside High are chronically absent (missing 10% or more of school days), which is better than the California average of 32.1%. The suspension rate is 9.6%. SchoolScope includes these culture metrics in the Scope Score because they reflect day-to-day school experience in ways test scores alone cannot.
How does Eastside High compare to other schools in Lancaster?
Eastside High scores 49/100 (48th percentile) among California high schools. To compare with nearby schools, SchoolScope shows the same metrics side by side: exceeded rate, proficiency, growth trajectory, and school culture indicators. The school serves 2,631 students. Use the schools in Lancaster page or the map view to compare all high schools nearby.
How does Eastside High serve low-income and underrepresented students?
At Eastside High in Lancaster, 41.9% of low-income students met or exceeded the ELA standard in 2025, compared to 34.1% district-wide and 38.2% statewide. Eastside High outperforms its district average for low-income students by 7.8 percentage points in ELA. Other subgroups: Low-Income students (7.3% Math proficient); Hispanic students (46.4% ELA proficient). The largest proficiency gap is 41.5 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 413 students tested. SchoolScope shows disaggregated test scores by demographic subgroup so you can see how a school performs for your child's specific group — not just the school-wide average. Subgroup data is context, not part of the Scope Score: we don't penalize schools for who they serve. See our equity approach.