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Acalanes Center for Independent Study · Walnut CreekPublic

Acalanes Center for Independent Study: No single number tells this school's story. Here's the honest picture.

Acalanes Center for Independent Study posts 30% meeting the standard and 4.3% exceeding it, against 43% and 19.8% statewide. The gaps and the bright spots below are the real read.

2022–2025 trend · CDE CAASPP
This schoolCA avg
Scope4254
% Exceeded4%20%
% Met+30%43%
Grad rate90.9%92.5%
College readiness36.4%43.0%
Absence56.8%23.1%
Suspension2.1%3.3%
Scope Score
42
🌱 Building Momentum · Developing
ranked #1,361 statewide · #5 of 5 in Acalanes Union High

Acalanes Center for Independent Study scores 42 of 100 on SchoolScope's Scope Score — the 37th percentile of 1,647 California high schools (CDE CAASPP 2025).

Measures test performance, attendance, and climate — not arts, community, or your kid. How we score →

🌱 Building Momentum — This label means the data doesn't clearly sort the school one way or the other — ask what the school is proud of, and what it's working on.

Most rating sites would stop at “30% proficient” and call it done. Acalanes Center for Independent Study deserves a closer read. It sits at the 37th percentile of 1,647 California high schools — but the ranking is the least interesting thing on this page.

The seven-year arc

Percentile among 1,647 high schools statewide

Slipped from the 64th to the 37th percentile since 2022.

ELA — % met or exceeded, by grade
Grade2022202320242025
Grade 1173%77%63%52%
Math — % met or exceeded, by grade
Grade2022202320242025
Grade 1127%29%29%9%

The story this school is actually telling

Proficient by 11th grade
30%
State 43%
Graduate
91%
State 92%
Pass an AP exam
36%
State 43%

Of 100 students here: 30 are proficient by 11th grade → 91 graduate → 36 pass an AP exam. The gaps between those bars are the questions to ask.

The 6 things our score weighs

Graduation rate
90.9%
State 92.5%
1.6pp below state avg
Exceeded standard
4.3%
State 19.8%
15.5pp below state avg
College readiness
36.4%
State 43.0%
AP course or exam readiness below state avg
Met or exceeded
30.4%
State 43.2%
12.8pp below state avg
Chronic absenteeism
56.8%
State 23.1%
33.8pp above state avg
Suspension rate
2.1%
State 3.3%
1.1pp below state avg
Worth a school visit

Ask what the school is working on next. Strong numbers tell you where a school is, not where it's going.

  • Ask how the school follows up when a student starts missing days — chronic absence often starts outside the classroom, not inside it.
  • Ask what share of students complete the full college-prep course sequence, and who gets steered into it.
  • Ask whether the tour can step into a working classroom — watch how the teacher handles a student who's stuck.
  • Ask to tour while school's in session, and notice how hallways and transitions feel — culture shows up between classes, not just in them.
  • Ask how the school communicates with families when a child starts to struggle.
  • Ask what a typical day looks like for a new student in the first few weeks.

How every group of students does here

All students at this school: 30% met or exceeded
All StudentsAll Students: this school 30%, district —, state 43%30%
FemaleFemale: this school 36%, district 77%, state 44%36% · +5 vs school
WhiteWhite: this school 29%, district 75%, state 56%29% · −1 vs school

8 of 11 student groups here are too small to report — a privacy protection, not a gap.

this school district, same group California, same group
AP access · 2020-21 federal civil rights snapshot (structural, dated — newest published; biennial)
Shown, never scored

In the 2020-21 federal collection — the newest there is — Students with disabilities students were 36% of Acalanes Center for Independent Study's enrollment but 14% of its AP seats; ask the school what's changed since.

Hispanic14.3% AP · 11.9% enroll.
American Indian/Alaska Native0.0% AP · 0.0% enroll.
Asian0.0% AP · 2.4% enroll.
Native Hawaiian/Pacific Islander0.0% AP · 0.0% enroll.
Black0.0% AP · 2.4% enroll.
White85.7% AP · 78.6% enroll.
Two or more races0.0% AP · 4.8% enroll.
English learners0.0% AP · 0.0% enroll.
Students with disabilities14.3% AP · 35.7% enroll.

● share of AP enrollment vs share of total enrollment, this school only · not part of the Scope Score

Data source: U.S. Dept. of Education Office for Civil Rights, Civil Rights Data Collection, 2020-21 (biennial; newest published)

Showing up, and staying in class

Chronic absenteeismChronic absenteeism: this school 56.8%, district 20.7%, state 23.1%56.8% · +33.8pp vs state
Suspension rateSuspension rate: this school 2.1%, district —, state 3.3%2.1% · −1.1pp vs state
Chronic absenteeism by grade band
Grades 9–1273.3%

The people teaching here

Context — never part of the Scope Score
Student : teacherStudent to teacher ratio: this school 10:1, district 20:110:1
PrincipalJon Drury
Teaching staff10 teachers
Avg. experience14.9 years
Fully credentialed88%
Salary Schedule
Teacher salary schedule$64,303 – $131,169
Principal salaryUp to $204,353
Superintendent salary$340,560

Pay is set by the district, not the school.

Course Breadth
AP exam qualifiers4 studentsCCI, participation not authorization
CTE pathway completers1 students
Advanced Coursework

Acalanes Center for Independent Study's teachers are authorized to teach 4 of the 40 AP subjects the College Board offers — including Calculus AB, Environmental Science, and Precalculus.

AP subjects taught4
Math & Computer Science (2)Calculus AB · Precalculus
Sciences (1)Environmental Science
History & Social Science (1)United States History

Data source: College Board AP Course Audit, 2025 - 2026 audit year (authorization, not enrollment) · IB World Schools directory, name-matched · structural depth: 2020-21 federal snapshot, table 09

What gets spent here

Context — never part of the Scope Score
Per-pupil spendingPer-pupil spending: $39,678, CA average $14,491$39,678 · spent at this school
Federal share$608 per student

$608 per student arrives as federal Title funding — a measure of concentrated need, not school quality.

District current expense · FY 2024–25$20,508 per student

The district's current expense of education per student, from CDE's annual SACS filing — the freshest district spending figure the state publishes.

Where the district's dollars go · FY 2024–25 · CDE SACS
Instruction58%
Instruction support12%
Student services12%
Administration7%
Buildings & maintenance11%
Other1%

District-level, from the district's own SACS general-ledger filing — school-by-school breakdowns aren't published by the state.

district detail, 2016–2020 — the newest published
2020$16,341 per pupil
2019$15,088 per pupil
2018$15,267 per pupil
2017$14,295 per pupil
2016$13,573 per pupil

Source: NCES F-33 · Full district breakdown →

The neighborhood it serves

Context — never part of the Scope Score
White63.9%
District 56.5% · CA 19.9%
Hispanic18.0%
District 12.2% · CA 56.1%
Asian9.8%
District 15.2% · CA 10.2%
Other6.6%
District 14.5% · CA 9.0%
Black1.6%
District 1.6% · CA 4.8%
GenderFemale 62.3%Male 37.7%
Low IncomeFree/reduced lunch eligible 16.4% (47pp below CA avg)
Neighborhood — American Community Survey
Median income$101K · CA $85K
Median home value$861K · CA $659K
Bachelor's degree+70% · CA 35%
ZIP population16,988
Median age69 years

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level

Worth Knowing

At 61 students, this school is much smaller than the typical California high school (≈1450).

On the state's science test (CAST), 53% met or exceeded the standard — science is tested in grades 5 and 8 and once in high school, and it never enters the Scope Score.

Frequently asked questions

Is Acalanes Center for Independent Study a good high school?

Acalanes Center for Independent Study has a Scope Score of 42 out of 100, placing it in the 37th percentile of California high schools and ranked #1,361 statewide. 4.3% of students exceeded the state standard on the 2025 CAASPP assessment, which is 15.5 percentage points below the California average of 19.8%. The Scope Score weights 7 dimensions for high schools: graduation rate (25%), exceeded standard (22%), college/career readiness (20%), met or exceeded (proficient) (18%), chronic absenteeism (5%), suspension rate (5%), and ELPAC English Learner proficiency (5%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.

What are Acalanes Center for Independent Study's CAASPP test scores?

On the 2025 CAASPP Smarter Balanced Assessment, 30.4% of students at Acalanes Center for Independent Study met or exceeded the state standard in ELA and Math combined, and 4.3% exceeded it. The gap between those numbers matters: 26.1% of students are at the proficiency floor, while 4.3% 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. 46 student-subject combinations were assessed.

How does Acalanes Center for Independent Study rank in California?

Acalanes Center for Independent Study ranks #1,361 among California high schools by Scope Score, placing it in the 37th 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 Acalanes Center for Independent Study?

56.8% of students at Acalanes Center for Independent Study are chronically absent (missing 10% or more of school days), compared to the California average of 23.1%. The suspension rate is 2.1%. 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 Acalanes Center for Independent Study compare to other schools in Walnut Creek?

Acalanes Center for Independent Study scores 42/100 (37th 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 61 students. Use the schools in Walnut Creek page or the map view to compare all high schools nearby.

What AP courses are offered at Acalanes Center for Independent Study?

Acalanes Center for Independent Study's teachers are authorized to teach 4 of the 40 AP subjects the College Board offers, per the 2025 - 2026 AP Course Audit: Calculus AB, Environmental Science, Precalculus, United States History. Authorization means the school may teach a course, not that a section is running this year, and it's separate from AP exam pass rates. Data source: College Board AP Course Audit, analyzed by SchoolScope.

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.


For the data nerds

Every number on this page

Score factors, grade-level breakdowns, subgroup proficiency, and nearest schools.

01Score factorsWeighted composite · 2024–25
Graduation rate · 25%
90.9%
↓ vs CA 92.5% · 55th pctile
Exceeded standard · 22%
4.3%
↓ vs CA 19.8% · 38th pctile
College readiness · 20%
36.4%
↓ vs CA 43.0% · 51th pctile
Met or exceeded · 18%
30.4%
↓ vs CA 43.2% · 46th pctile
Chronic absenteeism · 5%
56.8%
↓ vs CA 23.1% · 28th pctile
▲ 17.5pp higher vs 2024
Suspension rate · 5%
2.1%
↑ vs CA 3.3% · 57th pctile
▼ 0.2pp lower vs 2024
02By grade & subgroupCAASPP 2024–25 · % of tested students
ELATestedEXCMETNEARNOTMET++/CA
Grade 11239%43%39%9%52%+4
MathTestedEXCMETNEARNOTMET++/CA
Grade 11230%9%30%61%9%−15

We show the grade rows CDE publishes for this school. A missing grade or dash can mean the school does not serve that grade, no valid result was published, or the tested group was too small to report. It does not mean zero.

Science (CAST)TestedEXCMETNEARNOT
Schoolwide150%53%47%0%

CAST is tested in grades 5 and 8, then once in grade 10, 11, or 12. This row is the school's all-student aggregate. Not part of the Scope Score.

03Nearest high schoolssorted by Scope Score · Grade gap = grade 3 vs grade 5, this year, different students; Cohort growth = one school's returning cohort tracked across grades (mostly, not exactly, the same kids), in scale-score points — that's the measurement the Scope Score weights
SchoolDistScopeEXCMET+Grade gapCohort growthSusp
Acalanes Center for Independent Study ←424.3%30.4%2.1%
Acalanes High2.3 mi8249.9%72.8%2.3%
Las Lomas High1.3 mi7436.6%63.8%2.5%
California average5419.8%43.2%3.3%
04More measurescontext · not all part of the Scope Score
Graduation Rate
90.9%
AP Exam Prepared
36.4%
A-G Completion
33.3%
A-G are the 15 courses (across 7 subjects) required for UC/CSU eligibility
College-Going Rate
81.8%
YearScopePctileRankExcMet+AbsentSuspGrade gap
20225264#75918.2%50.0%37.2%2.4%
20235671#62226.4%52.8%27.6%4.4%
20245056#93612.8%45.8%39.3%2.3%
20254237#13614.3%30.4%56.8%2.1%
Grade gap = this year's grade 3 vs grade 5 result, two different sets of students, not a trend for any one child — it is not the measurement the Scope Score's growth dimension uses. See §01 above and /methodology#verdicts for the school's actual scored (cohort) growth.
What we can't show
  • — No subgroup comparison could be shown for this school this year — either its group sizes fall under CDE's 15-student reporting floor, or district/state comparison data wasn't available for its groups.
05Climate by student groupchronic absenteeism · 2019 vs 2025 — the two years CDE publishes at subgroup level
Group20192025Δ
Female27.0%74.5%+47.5pp
Male50.0%71.0%+21.0pp
Students with Disabilities53.3%71.1%+17.8pp
Socioeconomically Disadvantaged45.5%78.6%+33.1pp
All Students35.6%73.3%+37.7pp
Hispanic/Latino75.0%
08AP course catalog2025 - 2026
SubjectTaught by
Calculus ABthis school
Environmental Sciencethis school
Precalculusthis school
United States Historythis school

Authorization ≠ a section running this year — the Ledger records what the school may teach, not seat counts.

09Advanced coursework — 2020-21 federal civil-rights snapshotstructural, dated — newest published; biennial
MeasureThis school
AP offeredoffered
AP course count3
AP enrollment7
IB participationnot offered
Dual enrollmentnot offered
Algebra I in grade 8not reported
Calculus sections0
Physics sections0
Chemistry sections0
Total enrollment (CRDC)42

Shown, never scored — no entry to any composite. NULL/reserve codes render "not reported," never a fabricated zero. The equity block above this table (§4) is the per-subgroup view of this same collection.

10College destinationsclass of 2023 · CDE 12-mo College-Going Rate
DestinationCompleters% (derived)
University of California14.5%
California State University14.5%
California community college1463.6%
In-state private00.0%
Out-of-state, 4-year29.1%
Out-of-state, 2-year00.0%
Not enrolled418.2%

22 completers, class of 2023 · state-reported college-going rate 82% · % column is computed by SchoolScope (count ÷ completers), not a CDE-native rate · a missing cell is CDE suppression, never a fabricated zero · source: CDE 12-mo CGR, 2023 cohort (the newest published), National Student Clearinghouse match — a different, older vintage than the fall 2025 UC admissions rows in tables 06-07 above.

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EXC = exceeded standard · MET+ = met or exceeded ("proficient") · Source: CA Dept. of Education · CAASPP 2024–25 · n=1,647 high schools · Vintages: climate subgroups 2019+2025 · district finance per its label · ACS 2022 · AP Course Ledger 2025 - 2026 (November refresh; authorization not enrollment) · CRDC 2020-21 (biennial; next expected 2021-22) · CDE 12-mo CGR 2023 cohort, National Student Clearinghouse match · Data updated 2026-07-03methodology · data updates · CSV · report issue

SchoolScope scores and verdicts are our interpretation of public California Department of Education data — independent analysis, not an official rating. How we analyze · Request a correction