- Enrollment
- 3,067
- Students per teacher
- 24.5:1
- Resource Index
- 36/100
High school (grades 9-12) · San Marcos, CA
Twin Oaks High
Federal NCES profile for Twin Oaks High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 063488005891
👥 S:T ratio 62
🌟 Gifted program 70
🎓 Counselors 62
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Twin Oaks High earns 48/100 on the Resource Investment Index, with class sizes smaller than 96% of California schools.
- #1 of 5
- high schools in San Marcos · Resource Index
- 48
- Resource Index · Typical
- 9.6:1
- small classes for California
- 61.3%
- free-lunch eligible
Twin Oaks High has class sizes smaller than 96% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Twin Oaks High ranks #1 of 5 high schools in San Marcos, CA.
School address
District: San Marcos Unified · California
NCES ID 063488005891 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-22 students YoY
Twin Oaks High shrank from 235 students in 2022-23 to 213 in 2023-24 (-9.4%).
Teacher FTE lost 20.1 → 13.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-22 students YoY 063488005891 · San Marcos, CA High · SMALL · TRAD
192 enr · 9.6:1 · 61.3% lunch · RII 48
Nearest enrollment peer: San Marcos High (3,067 students)
Twin Oaks High shrank from 235 students in 2022-23 to 213 in 2023-24 (-9.4%). Teacher FTE lost 20.1 → 13.1 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Twin Oaks High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- San Marcos Hig
San Marcos High
3,067 students
- Mission Hills
Mission Hills High
2,751 students
- San Elijo Midd
San Elijo Middle
1,395 students
- Woodland Park 1,184
Woodland Park Middle
1,184 students
- Double Peak 1,171
Double Peak
1,171 students
- This school 192
Twin Oaks High
192 students
What this shows Twin Oaks High reports 192 students on the CCD universe file.
How Twin Oaks High compares
Twin Oaks 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 | 9.6:1 | ▼ 55% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 61.3% | ▲ 10% | 55.5% | 51.7% |
| Enrollment | 192 | top 83% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.6:1
Leaner classes than 91% of US schools, among the more generously staffed nationally.
192
Bigger than 19% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
61.3%
free-lunch eligible
- 10% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
9.6:1
students per teacher
- 55% below state mean
Top 4% in California - lower ratio than 96% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
54.7%
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
$14,622
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 192 students, the combined health-and-guidance staffing load for this school.
Discipline context
3
in-school suspensions + 9 out-of-school
Suspension rate: 1.6 per 100 students. Combined in-school and out-of-school rate: 6.3 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 62.5%
White 23.4%
Asian 5.7%
Two or More 4.7%
African American 3.1%
Native Hawaiian / Pacific Islander 0.5%
Largest group: Hispanic or Latino at 62.5% of enrollment.
Student-body diversity index 54.8/100
Simpson diversity index - at 54.8, Twin Oaks High is more mixed than the California school average of 46.0.
Programs
AP program Not offered
Gifted & talented Yes
District finance for San Marcos Unified reports $14,622 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Twin Oaks High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| San Marcos High | Larger | Lower economic need | Higher S:T ratio |
| Mission Hills High | Larger | Lower economic need | Higher S:T ratio |
| San Elijo Middle | Larger | Lower economic need | Higher S:T ratio |
| Woodland Park Middle | Larger | Lower economic need | Higher S:T ratio |
| Double Peak | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Twin Oaks High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,751
- Students per teacher
- 25.7:1
- Resource Index
- 44/100
- Enrollment
- 1,395
- Students per teacher
- 23.6:1
- Resource Index
- 34/100
- Enrollment
- 1,184
- Students per teacher
- 21.9:1
- Resource Index
- 32/100
- Enrollment
- 1,171
- Students per teacher
- 21.7:1
- Resource Index
- 29/100
Similar high schools in San Marcos
4 comparable high schools (grades 9-12) serving the same city.
San Marcos High
Standard public school
3,067 students 24.5:1 students per teacher
Mission Hills High
Standard public school
2,751 students 25.7:1 students per teacher
High Tech High North County
Standard public school
409 students 20.4:1 students per teacher
Foothills High
Alternative education program
101 students 20.2:1 students per teacher
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 (~192 students)
Frequently asked questions about Twin Oaks High
How many students attend Twin Oaks High?
Twin Oaks High has 192 students enrolled. It is a high school in San Marcos, CA. CCD year-over-year: 235 (2022-23) → 213 (2023-24), down 22.
What is the student-teacher ratio at Twin Oaks High?
The student-teacher ratio at Twin Oaks High is 9.6:1, which is 55% lower than the California average of 21.5:1 and 39% 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 Twin Oaks High?
61.3% of students at Twin Oaks High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Twin Oaks High?
The largest demographic group at Twin Oaks High is Hispanic or Latino at 62.5% of enrollment, in San Marcos, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.8/100.
What is the Resource Investment Index for Twin Oaks High?
Twin Oaks High has a Resource Investment Index of 48/100 (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 Twin Oaks High rank among high schools in San Marcos?
By Resource Investment Index, Twin Oaks High ranks #1 of 5 high schools in San Marcos, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in San Marcos on the city page.
What other schools are in San Marcos Unified?
Besides Twin Oaks High, San Marcos Unified also operates San Marcos High (3,067 students), Mission Hills High (2,751 students), and San Elijo Middle (1,395 students). See the San Marcos Unified district page for the complete list.