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Email BoardTwin Oaks Elementary
1 Cassou Road, San Marcos, CA 92069-9831
Summary
Twin Oaks Elementary is badly underperforming.
Reading and math results average to the 47th percentile among comparable California schools.
Only 36.9% of students met California's reading standard, and it is quickly trending down.
42.9% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 36.9% |
| Current Math Proficiency | 42.9% |
| Reading State Rank | 2,970/4,657 (36th percentile) |
| Math State Rank | 1,990/4,657 (57th percentile) |
School information
| Student / Teacher Ratio | 21:1 |
| Student enrollment (2024–25) | 648 |
| Low-Income Students | 309 (47.7%) |
| English Learners | 128 (19.8%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 8.4 points from last year and fell 10.6 points over the full period. Math rose 0.4 points from last year and rose 0.9 points over the full period.
•Math +0.9 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 32.9% to 45.0% across the grades shown. Overall, the school’s reading results rank No. 2,970 of 4,657 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 28.4-point reading income gap is wider than the 19.8-point gap at a typical California K–5 school. It narrowed over the period shown.
•English Learners vs English Native
10.2% of English learners meet the reading standard, compared with 41.5% of English-only students. The gap narrowed as English-learner results rose and English-only results fell.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 66% proficiency. The other reported groups range from about 29% to 29%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 31.7% to 55.7% across the grades shown. Overall, the school’s math results rank in the top 43% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 38.5-point math income gap is nearly twice as wide as the 20.0-point gap at a typical California K–5 school. It widened over the period shown.
•English Learners vs English Native
5.1% of English learners meet the math standard, compared with 53.0% of English-only students. The gap widened as English-learner results fell and English-only results rose.
•Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 1,832 schools for reading and 1,839 for math. The comparison uses 2026 California K–5 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Twin Oaks Elementary compare within the district?
Twin Oaks Elementary is No. 9 in both reading and math proficiency among the 10 K–5 schools in San Marcos Unified with 2026 results.
Explore the district’s schoolsHow does Twin Oaks Elementary rank in California?
Twin Oaks Elementary ranks No. 2,970 of 4,657 in reading and No. 1,990 of 4,657 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Twin Oaks Elementary compare within the district?
Low-income students here rank No. 10 in reading and No. 9 in math among 10 K–5 district schools with reportable 2026 results for this group. 22.3% meet the reading standard and 23.1% meet the math standard.
See results by student groupHow does Twin Oaks Elementary compare with other schools in San Marcos?
Twin Oaks Elementary is No. 6 in both reading and math proficiency among the 8 K–5 schools in San Marcos with 2026 results.
Explore schools in San MarcosHow does Twin Oaks Elementary compare with other schools in San Diego County?
Twin Oaks Elementary is No. 163 in reading and No. 126 in math proficiency among the 237 K–5 schools in San Diego County with 2026 results.
Explore schools in San Diego CountyWhich schools should I compare?
Schools serving K–5 in the same district.
| School | Math | Reading |
|---|---|---|
| Twin Oaks ElementaryThis school | 42.9% | 36.9% |
| Discovery Elementary | 75.9% | 77.1% |
| Knob Hill Elementary | 50.7% | 58.0% |
