Summary:
Zip code 92503 has eight schools serving grades K–12: five elementary schools, one middle school and two high schools. Seven schools have reported test scores; results vary considerably, especially in science, where the five elementary schools average 22% proficiency compared with 36% statewide. The clearest overall standout is Lake Mathews Elementary, which leads the seven schools with scores in all three reported subjects.
Lake Mathews also leads the elementary schools, with 61% in ELA, 56% in math and 37% in science—about 19, 21 and 10 percentage points above the next-highest elementary result in each subject. At the other end, Liberty Elementary has the lowest science result at 8%, 28 points below the state figure, and the lowest ELA result at 31%; its math result is 28%. Arlington High has a mixed profile: ELA is 54%, while math is 18% and science 26%; its graduation rate, however, is 96% compared with 88% statewide.
Scores generally improved from 2024–25 to 2025–26, but science has an important exception: six of seven schools gained in science, while Liberty fell 10 percentage points; the state science result rose 3 points. SchoolDigger ranks Lake Mathews in the 75th statewide percentile with a 4-star rating, while Jackson Elementary is in the 23rd percentile, the lowest among the elementary schools. Elementary student–teacher ratios range from 21.9 to 26.5; Lake has the highest ratio and enrollment, yet leads in scores. The reported free/reduced lunch eligible measure is for 2024–25: it ranges from 45% at Lake to 91% at Liberty. Sherman Indian High School reports Community Eligibility in 2024–25, meaning all students receive free meals; test scores were not supplied for that school.
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