Summary:
ZIP code 85259 has five schools—two elementary schools, one middle school, one high school and one alternative school—with reported results from elementary through high-school grades; all five exceed state proficiency figures in both ELA and math, though results vary substantially from school to school.
BASIS Scottsdale stands out most broadly: its all-grades ELA and math results are 82% and 81%, leading the next-highest schools by 8 and 13 percentage points. It also leads several same-grade comparisons, including grade 8 math (94% versus 55% at Mountainside Middle School) and grade 11 science (98% versus 27% at Desert Mountain High School). Mission Montessori Academy is especially strong in grade 3, leading Anasazi Elementary by 21 points in ELA and 15 in math. Mountainside is lowest on the all-grades measures, at 62% ELA and 52% math, but remains above state results of 41% and 33%. Desert Mountain’s grade 11 ELA and math are 72% and 62%, and its graduation rate is 97%.
SchoolDigger rankings show mixed movement from 2023–24 to 2025–26: Desert Mountain rose 7 percentile points to the 92nd percentile, Anasazi rose 2 to the 90th, while Mountainside and Mission Montessori each fell 2 points, to the 84th and 94th percentiles. The four schools’ average percentile edged up about 1 point, from 89 to 90. SchoolDigger places Desert Mountain, Anasazi and Mission Montessori in the top 10% of their respective ranking groups. School size and listed student–teacher ratios do not track results in a simple way: Mission has 129 students and a 12.9 ratio, while BASIS has 1,023 students and a 16.9 ratio, yet BASIS leads its shared middle-grade comparisons with Mountainside. Because test proficiency is available for only one year, rank history does not show whether test results are improving over time.
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