Summary:
ZIP code 85248 has two high schools: Hamilton High School, serving grades 8–12, and BASIS Chandler, serving grades 5–12. Both are well above Arizona’s reported proficiency results: the schools score 67% and 86% in ELA, 61% and 88% in math, and 45% and 98% in 11th-grade science, compared with state results of 41%, 33%, and 19%. The area’s schools are strong relative to the state, but their results differ substantially.
BASIS Chandler leads in every available proficiency comparison: it is 19 points ahead of Hamilton High School in all-grades ELA, 27 points ahead in all-grades math, and 53 points ahead in 11th-grade science. Still, Hamilton High School is above the state in each result, by 26 points in ELA, 28 in math, and 26 in science. Hamilton High School also reports a 92% graduation rate versus 80% statewide, and a 2% dropout rate versus 5% statewide; school-level figures for BASIS Chandler are not reported for these measures. All-grades results cover different grade spans, and BASIS Chandler’s 11th-grade ELA and math results are suppressed.
Hamilton High School’s SchoolDigger ranking improved from 41st of 270 schools in 2023–24 to 30th of 256 in 2025–26, with its reported percentile rising from 85 to 88. BASIS Chandler ranked 12th of 509 in 2020–21 and 8th in each of the next two reported years, but those years do not overlap with Hamilton High School’s ranking history. Enrollment is 3,444 at Hamilton High School and 1,185 at BASIS Chandler; their student–teacher ratios are 20.3 and 19.2, respectively. The supplied proficiency data cover only one year in ELA and math and one year in science, so they cannot show whether either school’s test results are improving.
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