BASIS Charter Schools Inc.

The list for BASIS Charter Schools Inc. covers one elementary school in Chandler, serving kindergarten through grade 5 and enrolling 488 students. The school’s 2025–26 results are well above Arizona’s in both tested subjects: 83% of students were proficient in English Language Arts (ELA), compared with 41% statewide, and 80% were proficient in math, compared with 33%. The most important takeaway is that the school exceeded the state in both subjects, with a particularly large 47-point advantage in math.

BASIS Chandler Primary–South Campus is the only school in this list, so it is the sole standout rather than one school leading or trailing another. Its state-relative advantage also appears in both reported grades: grade 3 proficiency was 85% in ELA versus 39% statewide and 81% in math versus 38%; grade 4 proficiency was 82% in ELA versus 47% and 80% in math versus 40%. The school’s largest grade-and-subject gap was 46 points in grade 3 ELA, while its smallest was still 35 points in grade 4 ELA.

SchoolDigger’s ranking history has shifted rather than moved steadily in one direction: the school ranked 5th of 912 in 2023–24, 18th of 909 in 2024–25, and 12th of 900 in 2025–26; its latest listing also assigns five stars and places it in the 99th percentile. The latest rank is 7 places below its 2023–24 position, but these rankings do not show whether test scores improved or declined. The school reported a student–teacher ratio of 15.2 in 2024–25; no free/reduced-lunch rate is provided. Because the list contains only one school and AASA results are available only for 2025–26, it cannot show school-to-school differences or score trends over time.