Summary:
ZIP code 90703 has five high schools in ABC Unified: two comprehensive high schools, a continuation school, an alternative school, and Whitney (Gretchen) High, which serves grades 7–12; the others serve grades 9–12. Four schools have current test scores, and their average results are above state results in all three subjects, but that overall picture hides the area’s most important finding: scores vary widely from one school to another, with the highest-to-lowest gaps reaching 84 percentage points in ELA, 96 in math, and 92 in science.
Whitney leads by a substantial margin, with 99% proficient in ELA and math and 98% in science; it is 22 points ahead of the next-highest school in ELA, 55 in math, and 48 in science. SchoolDigger ranked it 4th of 2,137 California schools in 2025–2026. Cerritos High is next in each subject, at 77% in ELA, 44% in math, and 49% in science, while Gahr (Richard) High scored 71%, 41%, and 42%. At the other end, Tracy (Wilbur) High (Continuation) recorded 15% in ELA, 3% in math, and 5% in science. ABC Secondary (Alternative) has no current test scores reported.
Recent trends differ: from 2024–2025 to 2025–2026, Gahr improved by about 10 points in each subject, while Cerritos declined by 10–14 points and Tracy fell in all three; the four-school average also declined by 4 points in ELA, 1 in math, and 2 in science. Outcomes beyond tests reinforce the contrast: Tracy’s graduation rate was 73% and chronic absenteeism 72%, compared with 100% and 5% at Whitney. School size or student-teacher ratio does not offer a simple guide: Whitney’s ratio was 25.9 students per teacher, versus 10.7 at Tracy. All five schools reported free/reduced lunch eligible figures for 2024–2025; they ranged from 31% at Whitney to 77% at Tracy, a difference that provides context but does not explain results. All-grades scores are not perfectly comparable because Whitney serves grades 7–12, and ABC Secondary has no current test scores.
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