Original Research by School Decision on Ace Charter High
ACE Charter High is a high school in San Jose serving grades nine through twelve. The student body is almost entirely Latino, with a student population concentrated in one ethnic group. A very large share of students qualify for free or reduced-price lunch, reflecting a student population with high economic need.
The school's state testing results are weak across the board. In English language arts, fewer than half of students met proficiency standards. In math, proficiency was substantially lower, with only a small fraction of students meeting standards. Science proficiency was lower still. These results place the school well below the median among districts in Santa Clara County on overall proficiency. No data on the school's graduation rate was available; state testing data was the only academic measure reported.
The school is small to mid-sized for its grade band, with roughly even enrollment across all four high school grades. It sits in the 95133 zip code in San Jose, in an area where home values are elevated and rents have risen modestly over the past year, though the local housing market has cooled from peak. This is a city neighborhood within Silicon Valley's economic orbit, not a separate suburban enclave.
ACE is a charter school, which shapes enrollment and structure. Starting with the 2026-2027 school year, the school moved to open enrollment, meaning any family completing the enrollment process will be admitted rather than going through a lottery. That removes admission uncertainty for families considering the school. The school also recently adopted a campus-wide cell-phone-free policy during the school day, a shift toward reducing distraction that some families support and others may view as restrictive depending on their preferences.
The school's website lists no information about AP courses, dual-credit pathways, career and technical programs, or specialized course offerings beyond the standard high school curriculum. Parents may want to ask the school directly about course breadth, particularly any options in vocational training, dual enrollment, or advanced coursework, since those would help clarify what academic pathways are available to students with different college and career goals.
With proficiency rates this low, a parent would want to have a detailed conversation with the school about what is driving the gap, what intervention is underway, and what academic supports are available to students. ACE may serve a population facing significant barriers to proficiency, or the school's approach may not yet be yielding strong results. Either way, understanding the school's plan and track record of improvement would be essential before enrolling.
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