Enrollment
113
California · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 063560006664 Charter school
Delta Charter — Aptos, CA
Federal NCES profile for Delta Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 32/100.
👥 Class size 42
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 77
📋 Attendance 0
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Santa Cruz City High · California
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
8.0
Federal CCD staff survey
Students per teacher
14.5:1
vs 21.6:1 California avg
-33% vs state
Free-lunch eligible
30.2%
vs 55.5% California avg
-46% vs state
Student-teacher ratio in context
How Delta Charter compares with California and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Delta Charter reports 113 enrolled students to the National Center for Education Statistics (NCES) alongside 8.0 full-time-equivalent teachers, producing a 14.5:1 student-teacher ratio. That figure sits 33% below the California state mean of 21.6:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.9:1, it is 9% lower, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 30.2% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 46% below the California average and 42% below the national baseline. Counselor coverage works out to roughly 113 students per counselor, meeting the American School Counselor Association recommendation of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 57.5% according to the 2021-22 Civil Rights Data Collection.
Taken together, these measurements produce a Resource Investment Index of 32/100 (F), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Delta Charter compares
Cross-validating school-level NCES values against California state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.5:1 | ▼ 33% | 21.6:1 | 15.9:1 |
| Free-lunch eligible | 30.2% | ▼ 46% | 55.5% | 51.8% |
| Enrollment | 113 | top 11% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
30.2%
free-lunch eligible
— 46% below the California average of 55.5%
Below the 40% Title I threshold — federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
14.5:1
students per teacher
— 33% below state mean
Top 8% in California — lower ratio than 92% of state schools
Below the 15:1 benchmark — typical of schools with smaller class sizes and more individualized attention.
Engagement
57.5%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Support staff
Counselors1.0 FTE
Per 113 students — the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 3 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 2.7 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 113 Top 11% in California — larger than 89% of 10,006 state schools
Teachers (FTE) 8.0
Students per teacher 14.5:1 -33% vs state
Free-lunch eligible 30.2% -46% vs state
NCES ID 063560006664
Student demographics
White 53.2%
Hispanic or Latino 38.7%
Two or More 5.4%
American Indian / Alaska Native 1.8%
African American 0.9%
Largest group: White at 53.2% of enrollment.
Programs & staff
AP program Not offered
Counselors (FTE) 1.0
Students per counselor 113:1
Discipline & special education
Chronically absent 57.5%
In-school suspensions 0
Out-of-school suspensions 3
Other Schools in This District
- Enrollment
- 1,093
- Students per teacher
- 21.4:1
- Enrollment
- 1,074
- Students per teacher
- 21.2:1
- Enrollment
- 1,013
- Students per teacher
- 18.9:1
- Enrollment
- 510
- Students per teacher
- 20.1:1
- Enrollment
- 409
- Students per teacher
- 18.5:1
Similar high schools in Aptos
1 comparable high schools (grades 9-12) serving the same city.
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Delta Charter
How many students attend Delta Charter?
Delta Charter has 113 students enrolled. It is a high school in Aptos, CA.
What is the student-teacher ratio at Delta Charter?
The student-teacher ratio at Delta Charter is 14.5:1, which is 33% lower than the California average of 21.6:1 and 9% lower than the national average of 15.9:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Delta Charter?
30.2% of students at Delta Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Delta Charter?
The largest demographic group at Delta Charter is White at 53.2%. The school serves a diverse student body in Aptos, CA.
What is the Resource Investment Index for Delta Charter?
Delta Charter has a Resource Investment Index of 32/100 (F) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.