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School Profile · Tracy

Delta Charter Online: Kids show up here — absenteeism is half the state rate. Test scores are still catching up.

Delta Charter Online's strongest numbers are the quiet ones: attendance and discipline. The academic picture is still developing — and culture is usually where that starts.

31400 South Koster Road, 95304 (opens in new tab)·New Jerusalem Elementary·Tracy·Grades K-12·282 students·57% low-income·Charter·2024–25 CAASPP·(209) 830-6363·Website
Charter school — publicly funded, independently operated, open enrollment via lottery. Learn more
Scope Score
42
🤝 Culture First · Developing
ranked #1,261 statewide · #3 of 7 in New Jerusalem Elementary

Delta Charter Online scores 42 of 100 on SchoolScope's Scope Score — the 42nd percentile of 2,160 California high schools (CDE CAASPP 2025).

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

CDE CAASPP 2025

Most rating sites would stop at “33% proficient” and call it done. Delta Charter Online deserves a closer read. The school sits in Tracy, where more than half of students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.

The headline number: 4.1% chronic absenteeism — versus 30.2% statewide. Attendance is the quietest strong signal a school can post.

As a charter, Delta Charter Online enrolls by application, not address — the score reads the same, the enrollment path doesn't.

The story this school is actually telling

Proficient by 11th grade
33%
State 36%
Graduate
98%
State 88%
Pass an AP exam
0%
State 35%

Of 100 students here: 33 are proficient by 11th grade → 98 graduate → 0 pass an AP exam. The gaps between those bars are the questions to ask.

The 6 things our score weighs

Graduation rate
98.3%
State 87.6%
10.7pp above state avg
Exceeded standard
10.1%
State 15.8%
5.8pp below state avg
College readiness
0.0%
State 35.4%
AP exam pass rate below state avg
Met or exceeded
32.7%
State 35.7%
3.0pp below state avg
Chronic absenteeism
4.1%
State 30.2%
26.1pp below state avg
Suspension rate
0.4%
State 3.6%
3.2pp below state avg
Worth a school visit

Ask how the school built its attendance culture — and what the academic plan looks like from here.

Where the path goes

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

Estimated K-12 Path
Elementary
Delta Home Charter
36
→
Middle
Delta Home Charter
36
→
High
Delta Charter Online
42
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

All schools in Tracy →

Private alternatives nearby

Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.

The community around it

Community Profile
Context — not part of the Scope Score

Student demographics

Hispanic50.7%
White26.2%
Asian7.8%
Black5.7%
Other9.6%
GenderFemale 53.5%Male 46.5%
Low IncomeFree/reduced lunch eligible 57.5% (6pp below CA avg)
Resources & Access
Enrollment
282
918 below CA avg (~1,200)
Transitional Kindergarten
No TK reported, 2025-26
California requires the district to offer TK, but not every site has a room — ask the district which campuses do.
Student-Teacher Ratio
24:1
3 more students per teacher than CA avg
Per-Pupil Spending
$18,023
District avg: $11,894 · CA avg: $14,815 · School-level · CDE ESSA
At Delta Charter Online in Tracy, 42.6% of low-income students met or exceeded the ELA standard in 2025, compared to 27.4% district-wide and 38.2% statewide. Delta Charter Online outperforms its district average for low-income students by 15.2 percentage points in ELA. Other subgroups: Low-Income students (31.7% Math proficient); Hispanic students (36.7% ELA proficient). The largest proficiency gap is 20.9 percentage points for disabilities students. Data source: California Department of Education, CAASPP 2024-25. 61 students tested.
Equity Gaps
ELA · Disabilities−20.9pp
20.0% vs 40.9% overall · n=20
2 more gaps by subject
Math · Disabilities−14.6pp
10.0% vs 24.6% overall · n=20
Math Exceeded · Disabilities−7.3pp
5.0% vs 12.3% overall · n=20

Subgroups with fewer than 15 students are excluded for privacy. Gaps of less than 3 percentage points are not shown.

Subgroup Proficiency
Low-Income61 tested
ELA 42.6%·Math 31.7%· +15.2pp vs district
Hispanic60 tested
ELA 36.7%·Math 25.0%· +11.2pp vs district
White34 tested
ELA 47.1%·Math 21.2%· +10.4pp vs district

Weighted average across tested grades. Subgroups with fewer than 15 students excluded. Data: CDE CAASPP 2024-25.

Funding Breakdown
Instruction 65%Support 33%Other 2%

Source: NCES F-33 (2019–2020) · Full district breakdown →

Neighborhood Context
Median Income
$115K
$30K above CA median
Median Home Value
$894K
$235K above CA median
Bachelor's+
27%
8pp below CA avg
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level
Whole Child
Teacher experience, college/career readiness, and more. Context only — never part of the Scope Score.
Teacher Experience
6.4 years avg experience
15 teachers · 7% second-year
Teacher Credentials
23% fully credentialed
CTE Pathway Completers
2 completed a career pathway

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 nerds

Every number on this page

Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.

01Score factorsWeighted composite · 2024–25
Graduation rate · 25%
98.3%
↑ vs CA 87.6% · 63th pctile
Exceeded standard · 22%
10.1%
↓ vs CA 15.8% · 44th pctile
College readiness · 20%
0.0%
↓ vs CA 35.4% · 29th pctile
Met or exceeded · 18%
32.7%
↓ vs CA 35.7% · 48th pctile
Chronic absenteeism · 5%
4.1%
↑ vs CA 30.2% · 71th pctile
Suspension rate · 5%
0.4%
↑ vs CA 3.6% · 64th pctile
02By grade & subgroupCAASPP 2024–25 · % of tested students
ELATestedEXCMETNEARNOTMET++/CA
Grade 111158%33%30%29%41%−6
MathTestedEXCMETNEARNOTMET++/CA
Grade 1111412%12%21%54%25%+1
Science (CAST)TestedEXCMETNEARNOT
Grade 5/8/111105%15%64%16%

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 Disadvantaged6142.6%+15+4
Hispanic/Latino6036.7%+11−2
White3447.1%+10−15
03Peer comparison · nearest high schoolssorted by Scope Score
SchoolDistScopeEXCMET+GrowthSusp
Delta Charter Online ←—4210.1%32.7%—0.4%
California average—4415.8%35.7%—3.6%
04More measurescontext · not all part of the Scope Score
Graduation Rate
98.3%
AP Exam Prepared
Not offered
This school may not offer AP courses
A-G Completion
11.3%
A-G are the 15 courses (across 7 subjects) required for UC/CSU eligibility
College-Going Rate
36.8%
Scope Score history
38%42%'19'22'23'24'25
2019 · 2022 · 2023 · 2024 · 2025 · no testing 2020–21 (COVID) · rank #1342 → #1264 → #1316 → #1329 → #1261
What we can't show
  • — Scored here as a high school — other grade spans appear in the data appendix.
Source: CA Dept. of Education · CAASPP 2024–25 · n=2,160 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

How to get into a charter school in LA →

Frequently asked questions

Is Delta Charter Online a good high school?
Delta Charter Online has a Scope Score of 42 out of 100, placing it in the 42nd percentile of California high schools and ranked #1,261 statewide. 10.1% of students exceeded the state standard on the 2025 CAASPP assessment, which is 5.8 percentage points below the California average of 15.8%. 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 Delta Charter Online's CAASPP test scores?
On the 2025 CAASPP Smarter Balanced Assessment, 32.7% of students at Delta Charter Online met or exceeded the state standard in ELA and Math combined, and 10.1% exceeded it. The gap between those numbers matters: 22.6% of students are at the proficiency floor, while 10.1% 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. 229 student-subject combinations were assessed.
How does Delta Charter Online rank in California?
Delta Charter Online ranks #1,261 among California high schools by Scope Score, placing it in the 42nd 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 Delta Charter Online?
4.1% of students at Delta Charter Online are chronically absent (missing 10% or more of school days), which is better than the California average of 30.2%. The suspension rate is 0.4%, 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 Delta Charter Online compare to other schools in Tracy?
Delta Charter Online scores 42/100 (42nd 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 282 students. Use the schools in Tracy page or the map view to compare all high schools nearby.
How does Delta Charter Online serve low-income and underrepresented students?
At Delta Charter Online in Tracy, 42.6% of low-income students met or exceeded the ELA standard in 2025, compared to 27.4% district-wide and 38.2% statewide. Delta Charter Online outperforms its district average for low-income students by 15.2 percentage points in ELA. Other subgroups: Low-Income students (31.7% Math proficient); Hispanic students (36.7% ELA proficient). The largest proficiency gap is 20.9 percentage points for disabilities students. Data source: California Department of Education, CAASPP 2024-25. 61 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.
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