Summary:
ZIP code 91905 has one listed elementary school, Clover Flat Elementary, serving grades K–6 and enrolling 190 students. In 2025–2026, its all-grade proficiency was 28% in English language arts (ELA), 16% in math, and 10% in science. The most important concern is the steep drop in results in the upper grades, especially math, where proficiency was 0% in both fifth and sixth grade.
Clover Flat is both the highest- and lowest-performing school in this list because it is the only one. ELA is its strongest subject relative to the state: the school was 22 percentage points behind in ELA, 22 points behind in math, and 26 points behind in science. Compared with Mountain Empire Unified, it was 2 points ahead in ELA and 3 points behind in science; its math result was roughly level with the district. Grade-level results highlight the concern: third-grade ELA was just 1 point below the state, while sixth-grade ELA was 40 points below. Fifth- and sixth-grade math were each more than 36 points below the state.
Results improved in ELA and math but declined in science from 2024–2025 to 2025–2026. ELA rose by 10 percentage points and math by 9, while science fell by 2 points. SchoolDigger’s ranking improved from 5,675 of 5,857 schools (3rd percentile) to 4,810 of 5,804 (17th percentile), a gain of 14 percentile points. For context, the school’s student–teacher ratio was 23.7 in 2024–2025, and 62% of students were free/reduced lunch eligible that year. These figures describe the school; they do not explain its test results.
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