Best Public Schools in Zip Code 92356

ZIP code 92356 has six schools serving students from elementary through high school: one elementary, one middle, two high schools, and two alternative schools. Enrollment ranges from 16 at Mountain View High to 4,393 at Granite Mountain Charter. Mountain View High’s test scores are suppressed, and schools serve different grade spans, so comparisons have some limits. The five schools with reported scores average below the state in all three subjects, with the smallest gap in science: 9 percentage points, compared with 11 in English language arts (ELA) and 17 in math. The most important takeaway is that academic results vary widely by school, and the area’s reported average remains below state proficiency in every subject.

Granite Mountain Charter leads in all-grades ELA at 47%, 17 points above the lowest result, 30% at Lucerne Valley Elementary. Southern California Flex Academy leads in math at 36% and science at 41%; the lowest results are 10% in math at Lucerne Valley Middle and 17% in science at Lucerne Valley Elementary. In 11th grade, both Granite Mountain and Flex exceed state results in ELA and math. Lucerne Valley High shows a mixed picture: graduation is 100% versus 88% statewide, while its all-grades math proficiency is 13%, 26 points below state.

Results are improving on average, but not uniformly. From 2024–25 to 2025–26, the five-school average rose 3 points in ELA, 2 in math, and 5 in science. Flex made strong gains in all three subjects—7 points in ELA, 10 in math, and 13 in science—while Lucerne Valley High’s ELA result fell 7 points. Lucerne Valley Elementary and Lucerne Valley Middle are at the 16th percentile in SchoolDigger’s statewide rankings, up from the 9th and 7th percentiles, respectively, in 2023–24. As context, free/reduced lunch eligible rates in 2024–25 range from 40% at Granite Mountain to 91% at Lucerne Valley Middle; student-teacher ratios range from 15.1 at Lucerne Valley High to 26.7 at Granite Mountain. These figures describe school context, not the cause of differences in results.