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Email BoardAntioch Charter Academy II
1201 West Tenth Street, Antioch, CA 94509-1406
Summary
Antioch Charter Academy II is underperforming.
Reading and math results average to the 66th percentile among comparable California schools.
Only 49.6% of students met California's reading standard, but it is trending up slightly.
Math is weaker: 39.5% of students met California's math standard, but it is trending up.
Proficiency stats
| Current Reading Proficiency | 49.6% |
| Current Math Proficiency | 39.5% |
| Reading State Rank | 628/1,734 (64th percentile) |
| Math State Rank | 554/1,735 (68th percentile) |
School information
| Student / Teacher Ratio | 18:1 |
| Student enrollment (2024–25) | 204 |
| Low-Income Students | 100 (49.0%) |
| English Learners | 22 (10.8%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading rose 3.2 points from last year and rose 2.4 points over the full period. Math rose 8.3 points from last year and rose 5.7 points over the full period.
•Math +5.7 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 23.8% to 84.2% across the grades shown. Overall, the school’s reading results rank in the top 37% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 20.4-point reading income gap is slightly wider than the 16.5-point gap at a typical California K–8 school. It narrowed over the period shown.
•English Learners vs English Native
0.0% of English learners meet the reading standard, compared with 51.6% of English-only students.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 42% proficiency. The other reported groups range from about 17% to 27%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 13.6% to 57.9% across the grades shown. Overall, the school’s math results rank in the top 32% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 29.5-point math income gap is nearly twice as wide as the 15.5-point gap at a typical California K–8 school. It widened slightly over the period shown.
•English Learners vs English Native
7.7% of English learners meet the math standard, compared with 42.5% of English-only students.
Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 802 schools for reading and 801 for math. The comparison uses 2026 California K–8 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 Antioch Charter Academy II compare within the district?
Antioch Charter Academy II is No. 1 in both reading and math proficiency among the 3 K–8 schools in Antioch Unified with 2026 results.
Explore the district’s schoolsHow does Antioch Charter Academy II rank in California?
Antioch Charter Academy II ranks No. 628 of 1,734 in reading and No. 554 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Antioch Charter Academy II compare within the district?
Low-income students here rank No. 1 in both subjects among 3 K–8 district schools with reportable 2026 results for this group. 41.1% meet the reading standard and 27.4% meet the math standard.
See results by student groupHow does Antioch Charter Academy II compare with other schools in Antioch?
Antioch Charter Academy II is No. 1 in both reading and math proficiency among the 2 K–8 schools in Antioch with 2026 results.
Explore schools in AntiochHow does Antioch Charter Academy II compare with other schools in Contra Costa County?
Antioch Charter Academy II is No. 5 in both reading and math proficiency among the 15 K–8 schools in Contra Costa County with 2026 results.
Explore schools in Contra Costa CountyWhich schools should I compare?
Schools serving K–8 in the same district.
| School | Math | Reading |
|---|---|---|
| Antioch Charter Academy IIThis school | 39.5% | 49.6% |
| Antioch Charter Academy | 24.0% | 40.3% |
| Orchard Park | 23.3% | 42.7% |
