The top reported proficiency rate is 86% in English language arts. The lowest is 83% in Science.
Original Research by School Decision on Basis Phoenix
BASIS Phoenix is a charter school serving grades five through twelve, operating as part of the BASIS Charter Schools Inc. network in the north-central part of Phoenix. It is a regular public school with a charter status, and it does not have Title I status. The school occupies a location on North 32nd Street in Phoenix, a large and sprawling urban center that functions as a major hub for finance, transportation, and high-technology industries for the Mountain West region. The area’s housing market carries a premium; home values in the immediate ZIP code sit well above both state and national benchmarks, and rents have seen a sharp recent increase, making this a relatively expensive pocket of the metropolitan area for families looking to live near the school.
The student body is distinctive in its composition. A large majority of students are Asian, with a much smaller share of white students and a modest share of Hispanic students. Very few students are Black, American Indian or Alaska Native, or of two or more races. The school does not report counts for students with disabilities or English learners, so a parent who needs to understand how the school serves those populations would need to ask directly. The school’s enrollment pattern is notable for its grade distribution: the sixth and seventh grades are the largest, with enrollment decreasing sharply after eighth grade. This suggests a common pattern among high-performing college-preparatory charter schools, where some students depart after the middle school years while others enter or remain through high school. The school does not have a fifth grade despite listing that as a served grade, so it effectively starts with sixth grade.
Academically, BASIS Phoenix produces results that are among the strongest in Maricopa County. On the state’s assessments for the 2024–25 school year, the school’s combined proficiency rate across math, English language arts, and science places it in the top quartile of all districts in the county for overall proficiency. In English language arts, proficiency was extremely high across grades six through eight, well into the upper tier of what any school in the state reports. Math proficiency was also very high, with the seventh and eighth grades scoring at or near the top of the range seen statewide. Science proficiency for eighth graders was similarly strong. The school does not currently have multi-year trend data that would show whether these high scores are improving or steady, as the data only covers the single 2024–25 year. No graduation rate data is reported, likely because the school serves a full grade band through twelfth grade but reports no rate in the available data; a parent would want to confirm this with the school directly.
The school environment data is thin on specifics. No discipline data, staffing levels, attendance rates, or course access information are present in the available records. The district-level parent brief found no recent changes in curriculum, property-tax measures, or pedagogy for the BASIS network. This leaves questions about class sizes, teacher turnover, and disciplinary climate unanswered from the public data. A parent considering this school would benefit from visiting, speaking with current families, and asking the school directly about these operational details.
For a family seeking a rigorous academic environment in a large urban charter network with a strong track record of high test scores, BASIS Phoenix presents a clear option. The school’s demographic makeup skews heavily toward Asian students and is less diverse than many Phoenix-area schools. The housing costs in the immediate area are elevated, which may factor into the decision for families who want to live within walking distance or a short drive. The lack of publicly available data on special education services and English learner support means families with children who need those services should ask pointed questions before enrolling. The significant enrollment drop after eighth grade is worth understanding as well, as it could reflect an academically demanding program that not every student stays in through graduation.
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