- Enrollment
- 3,067
- Students per teacher
- 24.5:1
- Resource Index
- 36/100
Elementary school (grades K-5) · San Marcos, CA
Twin Oaks Elementary
Federal NCES profile for Twin Oaks Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 15/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063488007719
👥 S:T ratio 14
🌟 Gifted program 30
📋 Attendance 3
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Twin Oaks Elementary earns 15/100 on the Resource Investment Index, with class sizes near the California median.
- #11 of 11
- elementary schools in San Marcos · Resource Index
- 15
- Resource Index · Lower
- 21.6:1
- students per teacher
- 39.7%
- free-lunch eligible
Twin Oaks Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Twin Oaks Elementary ranks #11 of 11 elementary schools in San Marcos, CA.
School address
District: San Marcos Unified · California
NCES ID 063488007719 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+31 students YoY
Twin Oaks Elementary held near 706 students from 2022-23 to 2023-24 (+31 headcount).
Teacher FTE added 30.0 → 31.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+31 students YoY 063488007719 · San Marcos, CA Elementary · MID · TRAD
648 enr · 21.6:1 · 39.7% lunch · RII 15
Nearest enrollment peer: San Marcos High (3,067 students)
Twin Oaks Elementary held near 706 students from 2022-23 to 2023-24 (+31 headcount). Teacher FTE added 30.0 → 31.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Twin Oaks Elementary 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 648
Twin Oaks Elementary
648 students
What this shows Twin Oaks Elementary reports 648 students on the CCD universe file.
How Twin Oaks Elementary compares
Twin Oaks Elementary held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.6:1 | ▲ 0% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 39.7% | ▼ 28% | 55.5% | 51.7% |
| Enrollment | 648 | top 28% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.6:1
Leaner classes than 11% of US schools, heavier class loads than most.
648
Bigger than 77% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
39.7%
free-lunch eligible
- 28% 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
21.6:1
students per teacher
- 0% above state mean
Top 49% in California - lower ratio than 51% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
39.0%
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 58.6%
White 31.5%
Two or More 4.8%
Asian 3.7%
African American 0.9%
Native Hawaiian / Pacific Islander 0.5%
Largest group: Hispanic or Latino at 58.6% of enrollment.
Student-body diversity index 55.4/100
Simpson diversity index - at 55.4, Twin Oaks Elementary is more mixed than the California school average of 46.0.
Programs
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 Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| San Marcos High | Larger | Similar economic need | Higher S:T ratio |
| Mission Hills High | Larger | Similar economic need | Higher S:T ratio |
| San Elijo Middle | Larger | Lower economic need | Higher S:T ratio |
| Woodland Park Middle | Larger | Similar economic need | Similar S:T ratio |
| Double Peak | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Twin Oaks Elementary'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 elementary schools in San Marcos
6 comparable elementary schools (grades K-5) serving the same city.
Double Peak
Standard public school
1,171 students 21.7:1 students per teacher
Richland Elementary
Standard public school
883 students 27.6:1 students per teacher
La Mirada Academy
Standard public school
868 students 21.7:1 students per teacher
San Elijo Elementary
Standard public school
834 students 23.8:1 students per teacher
Paloma Elementary
Standard public school
758 students 27.1:1 students per teacher
Knob Hill Elementary
Standard public school
725 students 23.4:1 students per teacher
Nationwide elementary 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 (~648 students)
Frequently asked questions about Twin Oaks Elementary
How many students attend Twin Oaks Elementary?
Twin Oaks Elementary has 648 students enrolled. It is an elementary school in San Marcos, CA. CCD year-over-year: 675 (2022-23) → 706 (2023-24), nearly flat (+31).
What is the student-teacher ratio at Twin Oaks Elementary?
The student-teacher ratio at Twin Oaks Elementary is 21.6:1, which is 0% higher than the California average of 21.5:1 and 38% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Twin Oaks Elementary?
39.7% of students at Twin Oaks Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Twin Oaks Elementary?
The largest demographic group at Twin Oaks Elementary is Hispanic or Latino at 58.6% of enrollment, in San Marcos, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.4/100.
What is the Resource Investment Index for Twin Oaks Elementary?
Twin Oaks Elementary has a Resource Investment Index of 15/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Twin Oaks Elementary rank among elementary schools in San Marcos?
By Resource Investment Index, Twin Oaks Elementary ranks #11 of 11 elementary 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 elementary schools in San Marcos on the city page.
What other schools are in San Marcos Unified?
Besides Twin Oaks Elementary, 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.