Antioch Charter Academy, Antioch CA

Original Research by School Decision on Antioch Charter Academy

Antioch Charter Academy is a kindergarten through eighth-grade charter school in Antioch, Contra Costa County, serving a small, diverse enrollment. The school operates under a charter from Antioch Unified School District and was recently designated high-performing, qualifying for a seven-year renewal; the district board scheduled a final approval vote for November 2025, which secures the school's continued operation for years ahead.

The student body is mixed in composition. About a quarter of students qualify for free or reduced-price meals. Roughly a third identify as Hispanic, a similar share as white, and about a fifth as Asian, with smaller populations of Black students and others. The school is small overall, with enrollments relatively balanced across grade levels from kindergarten through eighth grade.

On state testing, the school's proficiency results show particular strength in English language arts. Across the tested grades, students in middle school perform notably better in reading than in earlier grades, with eighth grade reaching about a majority proficient. In the upper elementary grades, proficiency in reading runs in the low-to-mid range. Math presents a steeper challenge. Across all grades, math proficiency runs well below ELA, with seventh grade particularly low and most other grades between a low fifth and a third proficient. Science testing (available for grades five and eight) shows proficiency in the low-to-mid range. Compared to other districts in Contra Costa County, the school's overall proficiency index places it below the county midpoint.

The school's setting is residential Antioch, a flat, car-dependent city whose downtown waterfront district offers walkability but where most neighborhoods require a car for daily errands. The city has grown substantially over recent decades and continues to add housing; many residents are cost-burdened by rents and home values. A BART station opened at Hillcrest Avenue and Highway 4, easing commute access to the wider Bay Area.

The school's main campus sits on Hacienda Way. A sister school, Antioch Charter Academy II, operates at the fairgrounds; as of fall 2025, it was expanding facilities but faced delays in occupying new buildings due to fire-marshal concerns about water-supply capacity for fire hydrants at that site, with no set timeline for resolution. Families considering the fairgrounds campus may want to clarify the current status of those facilities and any ongoing disruptions.

No data on chronic absenteeism, graduation rates, staff size, or special education and English learner enrollment counts were available, so a fuller picture of school environment and support systems is incomplete.

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Academic performance

How students perform on state tests, by grade, set against the district.

Math

Grade 332%

School 32% · district not reported

▼ 11 pts below state median · ▼ 12 pts below county median

Grade 425%

School 25% · district not reported

▼ 12 pts below state median · ▼ 14 pts below county median

Grade 517%

School 17% · district not reported

▼ 13 pts below state median · ▼ 14 pts below county median

Grade 626%

School 26% · district not reported

▼ 4 pts below state median · ▼ 1 pts below county median

Grade 78%

School 8% · district not reported

▼ 22 pts below state median · ▼ 21 pts below county median

Grade 817%

School 17% · district not reported

▼ 11 pts below state median · ▼ 15 pts below county median

English language arts

Grade 346%

School 46% · district not reported

▲ 5 pts above state median · ▲ 5 pts above county median

Grade 440%

School 40% · district not reported

▼ 2 pts below state median · ▼ 2 pts below county median

Grade 552%

School 52% · district not reported

▲ 7 pts above state median · ▲ 5 pts above county median

Grade 639%

School 39% · district not reported

▼ 5 pts below state median · ▲ 1 pts above county median

Grade 742%

School 42% · district not reported

▼ 4 pts below state median · ▼ 7 pts below county median

Grade 856%

School 56% · district not reported

▲ 11 pts above state median · ▲ 8 pts above county median

Science

Grade 539%

School 39% · district not reported

▲ 11 pts above state median · ▲ 9 pts above county median

Grade 822%

School 22% · district not reported

▼ 3 pts below state median · ▼ 7 pts below county median

This schoolDistrict average, same grade

Graduation rate (ACGR) reflects the federally published Adjusted Cohort Graduation Rate for the most recent year available. We refresh this data annually at the close of each academic year in June. The federal source publishes a banded rate (for example, "90-94%") instead of an exact number for cohorts small enough to risk identifying individual students. The state distribution chart, where shown, plots every school in the state with a published rate or band; schools whose rate is federally suppressed are excluded. Where the federal source publishes a band rather than an exact rate, the school is placed within its band using a stable, ID-derived offset, so its position is consistent across visits.