Summary:
Middle schools in ZIP code 92620 include two Sierra Vista Middle and Jeffrey Trail Middle, both in Irvine Unified and serving grades 7–8. In 2025–26, both schools were well above California proficiency rates in ELA, math and science; for example, their average results exceeded the state by 31 points in ELA, 40 in math and 35 in science. The most important area-wide finding is that both schools perform strongly relative to the state in every reported subject.
Jeffrey Trail leads the all-grades results in all three subjects, while Sierra Vista is close behind in ELA and math. Jeffrey Trail’s 2025–26 proficiency was 81% in ELA versus 79% at Sierra Vista, 78.4% in math versus 77.9%, and 73% in science versus 68%—a lead of 2 points, less than 1 point and 6 points, respectively. The exception is eighth-grade math: Sierra Vista scored 79%, about 1 point ahead of Jeffrey Trail. Both schools’ SchoolDigger statewide percentiles were high in 2025–26: 97 for each.
Recent score trends favor Jeffrey Trail: from 2024–25 to 2025–26, it rose 5 points in ELA, 3 in math and 8 in science, while Sierra Vista fell 3, 2 and 3 points, respectively. This reversed the prior year’s all-subject lead for Sierra Vista. SchoolDigger percentiles also shifted: Sierra Vista went from 98 to 97, while Jeffrey Trail rose from 96 to 97. As context, in 2024–25, free/reduced lunch eligible students made up 15% of Sierra Vista enrollment and 18% of Jeffrey Trail enrollment; this is an observed difference, not an explanation for results. Sierra Vista is larger, with 1,282 students versus 1,049, and its student-teacher ratio is 26.1 compared with 24.7 at Jeffrey Trail. These comparisons cover just two schools.
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