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Email BoardAtascadero High
1 High School Hill, Atascadero, CA 93422-4189
Summary
Atascadero High is underperforming.
Reading and math results average to the 60th percentile among comparable California schools.
55.1% of students met California's reading standard, and it is slowly trending up.
Math is weaker: 28.6% of students met California's math standard, but it is trending up.
Proficiency stats
| Current Reading Proficiency | 55.1% |
| Current Math Proficiency | 28.6% |
| Reading State Rank | 705/1,596 (56th percentile) |
| Math State Rank | 578/1,596 (64th percentile) |
School information
| Student / Teacher Ratio | 20:1 |
| Student enrollment (2024–25) | 1,157 |
| Low-Income Students | 522 (45.1%) |
| English Learners | 76 (6.6%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 5.4 points from last year and rose 4.5 points over the full period. Math fell 2.7 points from last year and rose 5.6 points over the full period.
•Math +5.6 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
55.1% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 45% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 13.8-point reading income gap is narrower than the 14.7-point gap at a typical California 9–12 school. It narrowed slightly over the period shown.
•English Learners vs English Native
0.0% of English learners meet the reading standard, compared with 60.0% of English-only students. The gap widened as English-learner results held steady and English-only results rose.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 37% proficiency. The other reported groups range from about 16% to 16%.
Distribution of Scores by Grade
28.6% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 37% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 17.1-point math income gap is slightly wider than the 14.2-point gap at a typical California 9–12 school. It narrowed over the period shown.
•English Learners vs English Native
0.0% of English learners meet the math standard, compared with 33.5% of English-only students. The gap narrowed as English-learner results held steady and English-only results fell.
How we compare income gaps
“Typical” means the median gap across 876 schools for reading and 882 for math. The comparison uses 2026 California 9–12 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 Atascadero High compare within the district?
Atascadero High is No. 2 in reading and No. 1 in math proficiency among the 2 9–12 schools in Atascadero Unified with 2026 results.
Explore the district’s schoolsHow does Atascadero High rank in California?
Atascadero High ranks No. 705 of 1,596 in reading and No. 578 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Atascadero High compare within the district?
Low-income students here rank No. 2 in reading and No. 1 in math among 2 9–12 district schools with reportable 2026 results for this group. 47.4% meet the reading standard and 18.9% meet the math standard.
See results by student groupHow does Atascadero High compare with other schools in Atascadero?
Atascadero High is No. 2 in reading and No. 1 in math proficiency among the 2 9–12 schools in Atascadero with 2026 results.
Explore schools in AtascaderoHow does Atascadero High compare with other schools in San Luis Obispo County?
Atascadero High is No. 8 in reading and No. 5 in math proficiency among the 11 9–12 schools in San Luis Obispo County with 2026 results.
Explore schools in San Luis Obispo CountyWhich schools should I compare?
Schools serving 9–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Atascadero HighThis school | 28.6% | 55.1% |
| Atascadero Choices in Education Academy (ACE) | 18.6% | 63.9% |
