BASIS Charter Schools Inc.

The BASIS Charter Schools Inc. list covers one elementary school in Scottsdale, BASIS Scottsdale Primary - West Campus, serving kindergarten through grade 4. It enrolls 464 students, and its reported student–teacher ratio is 18.5:1. In 2025–26, its all-grades results were 86% in ELA and 88% in math, both well above state results; its average advantage across the two subjects was 50 percentage points.

BASIS Scottsdale Primary - West Campus is both the highest- and lowest-performing school in this list because it is the only one, so there is no meaningful comparison among schools. Its strongest relative result is math: the school scored 88%, compared with 33% statewide, a 55-point difference. In ELA, it scored 86% versus 41% statewide, a 45-point difference. The pattern holds in grades 3 and 4: school results range from 84% to 89%, and each is at least 42 points above the corresponding state result. The school’s own math score is only 2 points higher than its ELA score, but its math advantage over the state is 10 points larger.

SchoolDigger’s ranking history shows the school moving from 12th of 912 in 2023–24 to 6th of 909 in 2024–25 and 5th of 900 in 2025–26; SchoolDigger reported a 99th-percentile rank in each year and five stars in 2025–26. This improving rank does not establish a rise in test scores: the supplied test results cover only 2025–26. The 464-student enrollment and 18.5:1 student–teacher ratio offer context, while the free/reduced-lunch field is blank. Because the list has just one school, it cannot show how these characteristics compare with other local schools or how school-level results differ.