School Profile · Clarksburg
Delta High: High scores, healthy climate, strong attendance. We looked for a catch — we didn't find one.
Delta posts 22.7% meeting the standard — versus 34.6% 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.
52810 Netherlands Avenue, 95612 (opens in new tab)·River Delta Joint Unified·Clarksburg·Grades 10-12·196 students·75% low-income·2024–25 CAASPP·(916) 744-1714·Website
Scope Score
54
🌱 Building Momentum · Solid
ranked #654 statewide
Delta High scores 54 of 100 on SchoolScope's Scope Score — the 62nd 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 “23% proficient” and call it done. Delta deserves a closer read. The school sits in Clarksburg, where three in four students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.
The headline number: 78.8% of students leave measurably college-ready, versus 35.5% statewide.
The story this school is actually telling
Proficient by 11th grade
23%
State 35%
Graduate
99%
State 88%
Pass an AP exam
79%
State 36%
Of 100 students here: 23 are proficient by 11th grade → 99 graduate → 79 pass an AP exam. The gaps between those bars are the questions to ask.
The 7 things our score weighs
Graduation rate
98.5%
State 87.6%
10.9pp above state avg
Exceeded standard
4.8%
State 15.5%
10.7pp below state avg
College readiness
78.8%
State 35.5%
AP exam pass rate above state avg
Met or exceeded
22.7%
State 34.6%
12.0pp below state avg
Chronic absenteeism
21.5%
State 32.1%
10.6pp below state avg
Suspension rate
3.5%
State 4.0%
0.5pp below state avg
EL proficiency (ELPAC)
17.9%
State 18.0%
0.1pp 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.
Where the path goes
The path below follows attendance boundaries — scores shown for each next step.
K-12 Feeder Path
Elementary
▼
High School
Delta High
54/100
This school
Feeder patterns derived from NCES attendance boundary data. Boundaries are approximate and may have changed — verify with your school district for current assignments.
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.
The community around it
Community Profile
Context — not part of the Scope ScoreStudent demographics
Hispanic72.5%
White20.4%
Asian0.5%
Black1.5%
Other5.1%
GenderFemale 48.5%Male 51.5%
Resources & Access
Enrollment
196
1,254 below CA avg (~1,450)
Free/Reduced Lunch
75%
11pp above CA avg (64%)
Student-Teacher Ratio
16:1
5 fewer students per teacher than CA avg
Per-Pupil Spending
$17,480
District avg: $13,283 · CA avg: $14,815 · School-level · CDE ESSA
EL Proficiency (ELPAC)
17.9% Level 4
Share of English Learners reaching full proficiency
Teacher Salary Range
$62,399 – $111,138
District schedule · CA median ~$98K
At Delta High in Clarksburg, 31.8% of low-income students met or exceeded the ELA standard in 2025, compared to 30.7% district-wide and 38.2% statewide. Delta High outperforms its district average for low-income students by 1.1 percentage points in ELA. Other subgroups: Low-Income students (6.8% Math proficient); Hispanic students (27.0% ELA proficient). The largest proficiency gap is 8.4 percentage points for hispanic students. Data source: California Department of Education, CAASPP 2024-25. 44 students tested.
Equity Gaps
Absenteeism · Disabilities+20.2pp
41.7% vs 21.5% overall · n=24
Suspension · Disabilities+8.5pp
12.0% vs 3.5% overall · n=25
ELA · Hispanic−8.4pp
27.0% vs 35.5% overall · n=37
2 more gaps by subject
ELA Exceeded · Hispanic−4.3pp
5.4% vs 9.7% overall · n=37
Math · Hispanic−7.1pp
2.7% vs 9.8% overall · n=37
Subgroups with fewer than 15 students are excluded for privacy. Gaps of less than 3 percentage points are not shown.
Subgroup Proficiency
Low-Income44 tested
ELA 31.8%·Math 6.8%· +1.1pp vs district
Hispanic37 tested
ELA 27.0%·Math 2.7%· -2.2pp vs district
White19 tested
ELA 52.6%·Math 22.2%· +10.9pp 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
$104K
$19K above CA median
Median Home Value
$1.02M
$364K above CA median
Bachelor's+
37%
2pp above 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
8.0 years avg experience
22 teachers · 14% first-year · 5% second-year
Teacher Credentials
69% fully credentialed
9.7% on intern/emergency permit
AP Courses Offered
6 AP courses
26 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%
98.5%
↑ vs CA 87.6% · 63th pctile
Exceeded standard · 22%
4.8%
↓ vs CA 15.5% · 39th pctile
College readiness · 20%
78.8%
↑ vs CA 35.5% · 75th pctile
Met or exceeded · 18%
22.7%
↓ vs CA 34.6% · 42th pctile
Chronic absenteeism · 5%
21.5%
↑ vs CA 32.1% · 58th pctile
Suspension rate · 5%
3.5%
↑ vs CA 4.0% · 52th pctile
EL proficiency (ELPAC) · 5%
17.9%
↓ vs CA 18.0% · 44th pctile
02By grade & subgroupCAASPP 2024–25 · % of tested students
| ELA | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 11 | 62 | 10% | 26% | 40% | 24% | 35% | −12 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 11 | 61 | 0% | 10% | 18% | 72% | 10% | −14 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 64 | 0% | 17% | 67% | 16% |
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 | 31.8% | +1 | −6 |
| Hispanic/Latino | 37 | 27.0% | −2 | −12 |
| White | 19 | 52.6% | +11 | −9 |
03Peer comparison · nearest high schoolssorted by Scope Score
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Delta High ← | — | 54 | 4.8% | 22.7% | — | 3.5% |
| California average | — | 47 | 15.5% | 34.6% | — | 4.0% |
04More measurescontext · not all part of the Scope Score
Graduation Rate
98.5%
AP Exam Prepared
78.8%
A-G Completion
60.0%
A-G are the 15 courses (across 7 subjects) required for UC/CSU eligibility
College-Going Rate
66.7%
Scope Score history
2019 · 2022 · 2023 · 2024 · 2025 · no testing 2020–21 (COVID) · rank #292 → #526 → #510 → #467 → #654
Source: CA Dept. of Education · CAASPP 2024–25 · n=1,739 high schools · Data updated 2026-07-03methodology · data updates · CSV · report issue
Frequently asked questions
Is Delta High a good high school?
Delta High has a Scope Score of 54 out of 100, placing it in the 62nd percentile of California high schools and ranked #654 statewide. 4.8% of students exceeded the state standard on the 2025 CAASPP assessment, which is 10.7 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 Delta High's CAASPP test scores?
On the 2025 CAASPP Smarter Balanced Assessment, 22.7% of students at Delta High met or exceeded the state standard in ELA and Math combined, and 4.8% exceeded it. The gap between those numbers matters: 17.8% of students are at the proficiency floor, while 4.8% 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. 123 student-subject combinations were assessed.
How does Delta High rank in California?
Delta High ranks #654 among California high schools by Scope Score, placing it in the 62nd 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 High?
21.5% of students at Delta 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 3.5%. 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 High compare to other schools in Clarksburg?
Delta High scores 54/100 (62nd 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 196 students. Use the schools in Clarksburg page or the map view to compare all high schools nearby.
How does Delta High serve low-income and underrepresented students?
At Delta High in Clarksburg, 31.8% of low-income students met or exceeded the ELA standard in 2025, compared to 30.7% district-wide and 38.2% statewide. Delta High outperforms its district average for low-income students by 1.1 percentage points in ELA. Other subgroups: Low-Income students (6.8% Math proficient); Hispanic students (27.0% ELA proficient). The largest proficiency gap is 8.4 percentage points for hispanic students. Data source: California Department of Education, CAASPP 2024-25. 44 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.