Delta Keys Charter: The scores are below where anyone wants them. Here's what they don't tell you.
Delta Keys Charter posts low test scores — and suspensions run below the state rate (0.8% vs 3.6%). If this is your zoned school, the numbers below are where to start a conversation, not where to end one.
| Scope | % Exceeded | % Met+ | Grad rate | College readiness | Absence | Suspension | |
|---|---|---|---|---|---|---|---|
| This school | 20 | 10% | 33% | 44.4% | 0.0% | 8.8% | 0.8% |
| CA average · High School | 44 | 16% | 36% | 87.6% | 35.4% | 30.2% | 3.6% |
Delta Keys Charter scores 20 of 100 on SchoolScope's Scope Score — the 9th 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 →
🤝 Culture First — Ask whether the low absenteeism and suspension numbers come from what the school does or from the community it serves — both can produce the same numbers, and only a visit tells you which.
Most rating sites would stop at “33% proficient” and call it done. Delta Keys Charter deserves a closer read. The school sits in Tracy, where two-thirds of students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.
The headline number: 8.8% chronic absenteeism — versus 30.2% statewide. Attendance is the quietest strong signal a school can post.
As a charter, Delta Keys Charter enrolls by application rather than address. That changes how you get in, but it doesn't change the score.
The seven-year arc
Has stayed near the 9th percentile since 2019.
The pandemic drop is behind this school: 33% of students meet the standard today, above the 7% who did in 2019.
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 11 | 14% | 13% | 18% | 16% | 29% |
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 11 | 0% | 0% | 3% | 13% | 36% |
The story this school is actually telling
Of 100 students here: 33 are proficient by 11th grade → 44 graduate → 0 pass an AP exam. The gaps between those bars are the questions to ask.
The 6 things our score weighs
Ask what changed in the last two years, and what the school is asking families for. Growth shows up in these numbers a year or two after it shows up in classrooms.
- 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 Delta Keys Charter in Tracy, 36.4% of low-income students met or exceeded the ELA standard in 2025, compared to 27.4% district-wide and 38.2% statewide. Delta Keys Charter outperforms its district average for low-income students by 9.0 percentage points in ELA. Other subgroups: Low-Income students (40.9% Math proficient); Hispanic students (26.5% ELA proficient). The largest proficiency gap is 9.7 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 44 students tested.
6 of 12 student groups here are too small to report — a privacy protection, not a gap.
Showing up, and staying in class
Where the path goes
Delta Keys Charter serves grades K-12 — students can complete their entire K-12 education here, with no school-to-school transitions.
The people teaching here
What gets spent here
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.
$163 per student arrives as federal Title funding — a measure of concentrated need, not school quality.
The district's current expense of education per student, from CDE's annual SACS filing — the freshest district spending figure the state publishes.
District-level, from the district's own SACS general-ledger filing — school-by-school breakdowns aren't published by the state.
Source: NCES F-33 · Full district breakdown →
The neighborhood it serves
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level
At 125 students, this school is much smaller than the typical California high school (≈1450).
On the state's science test (CAST), 23% met or exceeded the standard — science is tested in grades 5 and 8 but never enters the Scope Score.
Frequently asked questions
Is Delta Keys Charter a good high school?
What are Delta Keys Charter's CAASPP test scores?
How does Delta Keys Charter rank in California?
What is the attendance and school culture like at Delta Keys Charter?
How does Delta Keys Charter compare to other schools in Tracy?
How does Delta Keys Charter serve low-income and underrepresented students?
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.
A low score doesn't tell the whole story. Read: Your School Scored Low — Here's What That Actually Means
Every number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
| ELA | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 11 | 55 | 7% | 22% | 29% | 42% | 29% | −18 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 11 | 55 | 13% | 24% | 7% | 56% | 36% | +13 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 64 | 3% | 20% | 59% | 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 | 44 | 36.4% | +9 | −2 |
| Hispanic/Latino | 34 | 26.5% | +1 | −12 |
| English Learners | 15 | 26.7% | +21 | +16 |
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Delta Keys Charter ← | — | 20 | 10.0% | 32.7% | — | 0.8% |
| California average | — | 44 | 15.8% | 35.7% | — | 3.6% |
| Year | Scope | Pctile | Rank | Exc | Met+ | Absent | Susp | Growth |
|---|---|---|---|---|---|---|---|---|
| 2019 | 11 | 3 | #1978 | 0.7% | 7.2% | 33.3% | 0.9% | — |
| 2022 | 11 | 3 | #2032 | 0.0% | 6.3% | 21.6% | 1.1% | — |
| 2023 | 12 | 4 | #2068 | 1.3% | 10.3% | 13.5% | 1.3% | — |
| 2024 | 12 | 4 | #2065 | 0.0% | 14.1% | 18.5% | 1.7% | — |
| 2025 | 20 | 9 | #1972 | 10.0% | 32.7% | 8.8% | 0.8% | — |
- — Scored here as a high school — other grade spans appear in the data appendix.
| Group | 2019 | 2025 | Δ |
|---|---|---|---|
| Female | 31.8% | 2.6% | -29.2pp |
| Male | 37.7% | 2.5% | -35.2pp |
| Asian | 27.3% | 0.0% | -27.3pp |
| Black/African American | 36.8% | 0.0% | -36.8pp |
| Hispanic/Latino | 32.0% | 2.6% | -29.4pp |
| Two or More Races | 50.0% | 5.6% | -44.4pp |
| Students with Disabilities | 32.5% | 4.0% | -28.5pp |
| English Learners | 33.3% | 4.1% | -29.2pp |
| Socioeconomically Disadvantaged | 35.3% | 3.2% | -32.1pp |
| All Students | 34.7% | 2.6% | -32.1pp |
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