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Gaspar De Portola Charter Middle · Tarzana

Gaspar De Portola Charter Middle: High scores, healthy climate, strong attendance. We looked for a catch — we didn't find one.

Gaspar De Portola Charter posts 43.3% exceeding the standard — versus 16.8% statewide — with climate numbers better than most. That doesn't make it perfect. It makes it worth a visit to find what numbers can't measure.

18720 Linnet Street, 91356 (opens in new tab)·Los Angeles Unified·Tarzana·Grades 6-8·1,461 students·49% low-income·Charter·2024–25 CAASPP·(818) 654-3300·Website
Charter school — publicly funded, independently operated, open enrollment via lottery. Learn more
2019–2025 trend · CDE CAASPP
This schoolCA avg
Scope6843
% Exceeded43%17%
% Met+64%39%
Growth-6.9+1.5
Absence16.0%18.5%
Suspension0.8%3.7%
Scope Score
68
🌱 Building Momentum · Solid
ranked #166 statewide · #7 of 226 in Los Angeles Unified

Gaspar De Portola Charter Middle scores 68 of 100 on SchoolScope's Scope Score — the 93rd percentile of 2,238 California middle 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 “64% proficient” and call it done. Gaspar De Portola Charter deserves a closer read. The school sits in Tarzana, where two in five students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.

Gaspar De Portola Charter's low-income kids hit 54.4% proficiency in ELA — a number the same group reaches at 38.2% statewide. If you're trying to read past zip-code-driven test scores, that's the signal worth weighing.

As a charter, Gaspar De Portola Charter enrolls by application rather than address. That changes how you get in, but it doesn't change the score.

The seven-year arc

Percentile among 2,238 middle schools statewide

Climbed from the 75th to the 93rd percentile since 2019 — past roughly 300 middle schools.

CA Dashboard
ELAGreen(Increased Significantly)MathGreen(Increased Significantly)

The pandemic drop is behind this school: 64% of students meet the standard today, above the 56% who did in 2019.

ELA — % met or exceeded, by grade
Grade20192022202320242025
Grade 662%70%63%61%73%
Grade 761%65%72%65%66%
Grade 860%66%63%72%69%
Math — % met or exceeded, by grade
Grade20192022202320242025
Grade 655%57%52%56%64%
Grade 752%52%60%56%59%
Grade 849%44%52%59%54%

The story this school is actually telling

The school, grade by grade

ELA · CAASPP 2024–25

Different students, same year — each bar is one grade's proficiency mix.

44%
29%
27%
Grade 6 · 73% proficient
40%
26%
34%
Grade 7 · 66% proficient
39%
29%
32%
Grade 8 · 68% proficient

The honest read: the share exceeding falls 5.0pp across grades; the floor slips 4.3pp. The state average falls 0.5pp over the same span. A school visit and conversation with teachers will tell you more than this number.

54.4%
Low-income · ELA · met standard

Gaspar De Portola Charter's most underrated number

54.4% of low-income students met the ELA standard — versus 38.2% for the same group statewide. That's the strongest kind of signal a school can post: it holds across income lines.

Gaspar De Portola Charter low-income: 54.4%State low-income: 38.2%

The 5 things our score weighs

Exceeded standard
43.3%
State 16.8%
26.5pp above state avg
Growth (G6→G8)
-6.9pp
State +1.5pp
Scores decline across grades
Met or exceeded
64.0%
State 39.3%
24.7pp above state avg
Chronic absenteeism
16.0%
State 18.5%
2.5pp below state avg
Suspension rate
0.8%
State 3.7%
2.8pp 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 what changes between grade 6 and grade 8 here, and who teaches the older kids.
  • Ask whether extra support — tutoring, counseling, small groups — reaches kids across income lines, not just the students already ahead.
  • 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

At Gaspar De Portola Charter Middle in Tarzana, 54.4% of low-income students met or exceeded the ELA standard in 2025, compared to 40.9% district-wide and 38.2% statewide. Gaspar De Portola Charter Middle outperforms its district average for low-income students by 13.5 percentage points in ELA. Other subgroups: Low-Income students (41.7% Math proficient); White students (77.4% ELA proficient). The largest proficiency gap is 55.5 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 671 students tested.

All students at this school: 64% met or exceeded
All StudentsAll Students: this school 64%, district —, state 39%64%
MaleMale: this school 66%, district 41%, state 42%66% · +1 vs school
Socioeconomically DisadvantagedSocioeconomically Disadvantaged: this school 48%, district 36%, state 32%48% · −16 vs school
FemaleFemale: this school 63%, district 42%, state 44%63% · −2 vs school
WhiteWhite: this school 74%, district 65%, state 56%74% · +10 vs school
Hispanic/LatinoHispanic/Latino: this school 44%, district 36%, state 32%44% · −21 vs school
Students with DisabilitiesStudents with Disabilities: this school 43%, district 14%, state 15%43% · −22 vs school
AsianAsian: this school 93%, district 78%, state 72%93% · +28 vs school
Two or More RacesTwo or More Races: this school 67%, district 56%, state 56%67% · +3 vs school
English LearnersEnglish Learners: this school 12%, district 9%, state 11%12% · −52 vs school
Black/African AmericanBlack/African American: this school 45%, district 30%, state 26%45% · −19 vs school
FilipinoFilipino: this school 82%, district 70%, state 65%82% · +18 vs school
American Indian/Alaska NativeAmerican Indian/Alaska Native: too few students to report‹11
Pacific IslanderPacific Islander: too few students to report‹11
Foster YouthFoster Youth: too few students to report‹11
HomelessHomeless: too few students to report‹11
this school district, same group California, same group
Subgroup growth by grade

Change in proficiency from the lowest tested grade — which groups gain ground the longer they stay. Groups with fewer than 10 tested students per grade are not shown.

Low-income student ELA proficiency falls by 10.0pp from grade 6 to grade 8 at this school. District average: -0.3pp.

Showing up, and staying in class

Chronic absenteeismChronic absenteeism: this school 16.0%, district 24.5%, state 18.5%16.0% · −2.5pp vs state
Suspension rateSuspension rate: this school 0.8%, district —, state 3.7%0.8% · −2.8pp vs state

Grades 7–8 students miss school at roughly one and a half times the rate of Grades 4–6 students (18.5% vs 11.8%). Chronic absence here concentrates in the upper grades.

Chronic absenteeism by grade band
Grades 4–611.8%
Grades 7–818.5%

Where the path goes

The path below follows attendance boundaries — scores shown for each next step.

K-12 Feeder Path

Feeder patterns derived from NCES attendance boundary data. Boundaries are approximate and may have changed — verify with your school district for current assignments.

The people teaching here

Context — never part of the Scope Score
Student : teacherStudent to teacher ratio: this school 24:1, district 20:124:1
Teaching staff61 teachers
Avg. experience16.1 years
Fully credentialed80%
First-year teachers2%
Intern / emergency permit4.1%
Salary Schedule
Teacher salary schedule$60,420 – $122,706
Principal salary$154,576 – $170,030
Superintendent salary$440,000

Pay is set by the district, not the school.

What gets spent here

Per-pupil spendingPer-pupil spending: $21,218, CA average $14,815$21,218 · spent at this school

These measure different things: this figure is spending attributed to this campus, while district-wide figures also include central administration, districtwide programs, and the state's pension contributions made on the district's behalf — costs that never get assigned to a single school. The district number runs higher at nearly every school, not just this one.

Federal share$1,007 per student

$1,007 per student arrives as federal Title funding — a measure of concentrated need, not school quality.

District current expense · FY 2024–25$29,292 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
Instruction52%
Instruction support16%
Student services12%
Administration7%
Buildings & maintenance10%
Other2%

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$18,180 per pupil
2019$16,355 per pupil
2018$15,793 per pupil
2017$13,247 per pupil
2016$13,549 per pupil

Source: NCES F-33 · Full district breakdown →

The neighborhood it serves

White42.6%
District 9.9% · CA 19.9%
Hispanic32.8%
District 73.2% · CA 56.1%
Asian11.2%
District 3.4% · CA 10.2%
Other9.7%
District 6.3% · CA 9.0%
Black3.7%
District 7.2% · CA 4.8%
Low IncomeFree/reduced lunch eligible 49.0% (15pp below CA avg)
Neighborhood — American Community Survey
Median income$107K · CA $85K
Median home value$1.23M · CA $659K
Bachelor's degree+56% · CA 35%
ZIP population30,942
Median age42 years

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

Worth Knowing

At 1,461 students, this school is well above the typical California middle school (≈860).

On the state's science test (CAST), 50% met or exceeded the standard — science is tested in grades 5 and 8 but never enters the Scope Score.

Frequently asked questions

Is Gaspar De Portola Charter Middle a good middle school?

Gaspar De Portola Charter Middle has a Scope Score of 68 out of 100, placing it in the 93rd percentile of California middle schools and ranked #166 statewide. 43.3% of students exceeded the state standard on the 2025 CAASPP assessment, which is 26.5 percentage points above the California average of 16.8%. The Scope Score weights 6 dimensions for middle schools: exceeded standard (38%), grade 6-to-8 growth (27%), met or exceeded (proficient) (20%), 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 Gaspar De Portola Charter Middle's CAASPP test scores?

On the 2025 CAASPP Smarter Balanced Assessment, 64.0% of students at Gaspar De Portola Charter Middle met or exceeded the state standard in ELA and Math combined, and 43.3% exceeded it. The gap between those numbers matters: 20.7% of students are at the proficiency floor, while 43.3% 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. 2,775 student-subject combinations were assessed.

How does Gaspar De Portola Charter Middle rank in California?

Gaspar De Portola Charter Middle ranks #166 among California middle schools by Scope Score, placing it in the 93rd percentile. This ranking is based on a weighted composite of 2025 CAASPP test performance (exceeded and met rates), grade-level growth (Grade 6 to grade 8 growth), 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.

Is Gaspar De Portola Charter Middle getting better or worse?

Based on 2025 CAASPP data, proficiency at Gaspar De Portola Charter Middle decreases by 6.9 percentage points from Grade 6 to grade 8 growth. This downward pattern doesn't necessarily mean the school is failing — it can reflect cohort differences, demographic shifts, or curriculum changes. A campus visit and conversation with teachers can reveal what the numbers can't. Growth trajectory is weighted at 15% in the middle Scope Score because it measures what the school does, not just who walks in the door.

What is the attendance and school culture like at Gaspar De Portola Charter Middle?

16.0% of students at Gaspar De Portola Charter Middle are chronically absent (missing 10% or more of school days), which is better than the California average of 18.5%. The suspension rate is 0.8%, indicating a low-discipline-incident environment. 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 Gaspar De Portola Charter Middle compare to other schools in Tarzana?

Gaspar De Portola Charter Middle scores 68/100 (93rd percentile) among California middle 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 1,461 students. Use the schools in Tarzana page or the map view to compare all middle schools nearby.

How does Gaspar De Portola Charter Middle serve low-income and underrepresented students?

At Gaspar De Portola Charter Middle in Tarzana, 54.4% of low-income students met or exceeded the ELA standard in 2025, compared to 40.9% district-wide and 38.2% statewide. Gaspar De Portola Charter Middle outperforms its district average for low-income students by 13.5 percentage points in ELA. Other subgroups: Low-Income students (41.7% Math proficient); White students (77.4% ELA proficient). The largest proficiency gap is 55.5 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 671 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.

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 peer comparisons.

01Score factorsWeighted composite · 2024–25
Exceeded standard · 38%
43.3%
↑ vs CA 16.8% · 79th pctile
Growth (G6→G8) · 27%
-6.9pp
↓ vs CA +1.5pp · 57th pctile
Met or exceeded · 20%
64.0%
↑ vs CA 39.3% · 70th pctile
Chronic absenteeism · 5%
16.0%
↑ vs CA 18.5% · 54th pctile
Suspension rate · 5%
0.8%
↑ vs CA 3.7% · 61th pctile
02By grade & subgroupCAASPP 2024–25 · % of tested students
ELATestedEXCMETNEARNOTMET++/CA
Grade 652344%29%12%15%73%+26
Grade 745840%26%15%19%66%+18
Grade 839839%29%15%17%69%+23
MathTestedEXCMETNEARNOTMET++/CA
Grade 653149%14%16%20%64%+29
Grade 746443%16%16%25%59%+25
Grade 840144%10%17%29%54%+22
Science (CAST)TestedEXCMETNEARNOT
Grade 5/8/1141623%27%36%14%

CAST is tested in grades 5, 8, and once in high school — not annually. Not part of the Scope Score.

Subgroup · ELATestedMET+vs districtvs CA
Socioeconomically Disadvantaged67154.4%+13+16
White57277.4%+9+16
Hispanic/Latino46750.8%+10+12
03Peer comparison · nearest middle schoolssorted by Scope Score
SchoolDistScopeEXCMET+GrowthSusp
Gaspar De Portola Charter Middle ←6843.3%64.0%−6.90.8%
William Mulholland Middle2.6 mi4213.9%33.8%+0.30.2%
John A. Sutter Middle3 mi418.7%24.2%+4.60.5%
Ingenium Charter Middle2.9 mi244.5%15.2%+5.21.3%
California average4316.8%39.3%+1.53.7%
04More measurescontext · not all part of the Scope Score
YearScopePctileRankExcMet+AbsentSuspGrowth
20195175#50032.1%56.5%15.0%0.9%-3.8pp
20225584#34835.3%59.3%24.2%0.8%-8.3pp
20236489#23536.2%60.1%18.0%1.0%-0.3pp
20246490#22040.4%61.4%19.2%0.7%+6.8pp
20256893#16643.3%64.0%16.0%0.8%-6.9pp
NO STATEWIDE TESTING 2020–21 (COVID) · SCORE AND PERCENTILE ARE RELATIVE TO EACH YEAR'S FIELD
05Climate by student groupchronic absenteeism · 2019 vs 2025 — the two years CDE publishes at subgroup level
Group20192025Δ
Female13.8%15.4%+1.6pp
Male16.0%16.5%+0.5pp
Asian7.1%3.0%-4.1pp
Black/African American20.7%24.1%+3.4pp
White10.5%11.8%+1.3pp
Hispanic/Latino18.8%22.2%+3.4pp
Two or More Races6.1%22.1%+16.0pp
Students with Disabilities21.3%24.3%+3.0pp
English Learners24.3%23.8%-0.5pp
Foster Youth0.0%
Homeless18.2%53.8%+35.6pp
Socioeconomically Disadvantaged17.3%22.1%+4.8pp
All Students15.0%16.0%+1.0pp
Filipino10.5%
EXC = exceeded standard · MET+ = met or exceeded ("proficient") · Source: CA Dept. of Education · CAASPP 2024–25 · n=2,238 middle schools · Vintages: climate subgroups 2019+2025 · district finance per its label · ACS 2022 · 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