Summary:
ZIP code 91935 has three schools serving kindergarten through grade 12: Jamul Elementary serves K–5 and has 386 students, Oak Grove Middle serves grades 6–8 and has 215, and Greater San Diego Academy is a K–12 alternative school with 209. The clearest area-wide pattern is that in 2024–25 all three were below California’s results in English and math, while Greater San Diego Academy was a notable exception in science.
Results vary by school and subject. In 2024–25, Jamul led ELA with 45%, compared with 42% at Greater San Diego Academy and 36% at Oak Grove; in math, the Academy led at 33%, versus 27% at Jamul and 20% at Oak Grove. Science was the sharpest contrast: the Academy reached 43%, about 10 percentage points above the state’s 33%, while Jamul had 18% and Oak Grove 12%. The Academy’s overall science strength does not mean it led in every grade: its grade 11 results exceeded state results in ELA, math, and science, while its grade 3 and grade 4 ELA results were well below their state comparisons. In the latest results, 2025–26, Jamul led Oak Grove in all three subjects by 2 points in ELA, 6 in math, and 8 in science, though both remained below state results in each.
From 2024–25 to 2025–26, the two district schools’ average ELA result fell by 7 percentage points and math by 3, while their average science result rose by 4; the state’s science result rose by 3 points. SchoolDigger rankings also fell in 2025–26: Jamul was at the 26th percentile and Oak Grove at the 21st, both rated one star, down 14 and 9 percentile points from the prior year. For context, 2024–25 student–teacher ratios were 24.1 at Jamul, 19.5 at Oak Grove, and 23.1 at the Academy. The schools reported free/reduced lunch eligible shares of 46%, 39%, and 62%, respectively, in 2024–25; these are context about the schools, not explanations for their scores. Because the schools serve different grade spans, their all-grade results are not a grade-matched comparison.
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