- Enrollment
- 432
- Students per teacher
- 33.2:1
- Resource Index
- 7/100
High school (grades 9-12) · Clarksburg, CA
Delta High
Federal NCES profile for Delta High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 063311005123
👥 S:T ratio 40
🌟 Gifted program 70
🎓 Counselors 51
📋 Attendance 13
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Delta High earns 43/100 on the Resource Investment Index, with class sizes smaller than 89% of California schools.
- #1 of 3
- public schools in Clarksburg · Resource Index
- 43
- Resource Index · Typical
- 15.1:1
- small classes for California
- 45.8%
- free-lunch eligible
Delta High has class sizes smaller than 89% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Delta High ranks #1 of 3 public schools in Clarksburg, CA.
School address
District: River Delta Joint Unified · California
NCES ID 063311005123 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-20 students YoY
Delta High shrank from 203 students in 2022-23 to 183 in 2023-24 (-9.9%).
Teacher FTE lost 13.1 → 11.4 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-20 students YoY 063311005123 · Clarksburg, CA High · SMALL · TRAD
196 enr · 15.1:1 · 45.8% lunch · RII 43
Nearest enrollment peer: D. H. White Elementary (432 students)
Delta High shrank from 203 students in 2022-23 to 183 in 2023-24 (-9.9%). Teacher FTE lost 13.1 → 11.4 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Delta High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- D. H. White El
D. H. White Elementary
432 students
- Rio Vista High
Rio Vista High
317 students
- This school
Delta High
196 students
- Isleton Elemen
Isleton Elementary
188 students
- Clarksburg Mid 171
Clarksburg Middle
171 students
- Riverview Midd 160
Riverview Middle
160 students
What this shows Delta High reports 196 students on the CCD universe file.
How Delta High compares
Delta High is a shrinking campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.1:1 | ▼ 30% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 45.8% | ▼ 17% | 55.5% | 51.7% |
| Enrollment | 196 | top 83% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.1:1
Leaner classes than 46% of US schools, a middle-of-the-pack class size.
196
Bigger than 19% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
45.8%
free-lunch eligible
- 17% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
15.1:1
students per teacher
- 30% below state mean
Top 11% in California - lower ratio than 89% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
34.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,926
per pupil, district-wide
- below California avg of $18,665
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.8 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
1
in-school suspensions + 19 out-of-school
Suspension rate: 0.5 per 100 students. Combined in-school and out-of-school rate: 10.2 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 72.4%
White 20.4%
Two or More 3.6%
African American 1.5%
Asian 1.0%
American Indian / Alaska Native 0.5%
Native Hawaiian / Pacific Islander 0.5%
Largest group: Hispanic or Latino at 72.4% of enrollment.
Student-body diversity index 43.3/100
Simpson diversity index - at 43.3, Delta High is less mixed than the California school average of 46.0.
Programs
AP courses offered 8
Gifted & talented Yes
District finance for River Delta Joint Unified reports $16,926 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Delta High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| D. H. White Elementary | Larger | Similar economic need | Higher S:T ratio |
| Rio Vista High | Larger | Similar economic need | Similar S:T ratio |
| Isleton Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Clarksburg Middle | Similar size | Similar economic need | Higher S:T ratio |
| Riverview Middle | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Delta High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 317
- Students per teacher
- 14.4:1
- Resource Index
- 37/100
- Enrollment
- 188
- Students per teacher
- 20.9:1
- Resource Index
- 24/100
- Enrollment
- 171
- Students per teacher
- 21.4:1
- Resource Index
- 15/100
- Enrollment
- 160
- Students per teacher
- 17.8:1
- Resource Index
- 33/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~196 students)
Frequently asked questions about Delta High
How many students attend Delta High?
Delta High has 196 students enrolled. It is a high school in Clarksburg, CA. CCD year-over-year: 203 (2022-23) → 183 (2023-24), down 20.
What is the student-teacher ratio at Delta High?
The student-teacher ratio at Delta High is 15.1:1, which is 30% lower than the California average of 21.5:1 and 4% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Delta High?
45.8% of students at Delta High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Delta High?
The largest demographic group at Delta High is Hispanic or Latino at 72.4% of enrollment, in Clarksburg, CA.
What is the Resource Investment Index for Delta High?
Delta High has a Resource Investment Index of 43/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Delta High rank among public schools in Clarksburg?
By Resource Investment Index, Delta High ranks #1 of 3 public schools in Clarksburg, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in River Delta Joint Unified?
Besides Delta High, River Delta Joint Unified also operates D. H. White Elementary (432 students), Rio Vista High (317 students), and Isleton Elementary (188 students). See the River Delta Joint Unified district page for the complete list.