Best Public Schools in Zip Code 91766

This analysis covers 14 public schools in the Pomona Unified School District within zip code 91766, serving approximately 9,200 students from kindergarten through 12th grade in an area where the district ranks in the 29th percentile statewide.

Academic performance varies widely across these schools. Ranch Hills Elementary stands out as the highest-performing elementary school, with proficiency rates above state averages and the lowest chronic absenteeism, while Diamond Ranch High is the top high school with the strongest graduation rate and English scores. In contrast, schools like Lopez Elementary and Washington Elementary have proficiency rates in the bottom 6% of the state, and Simons Middle is the lowest-performing middle school.

Key findings show a district investing heavily per student, but outcomes depend on more than funding. High schools graduate students at high rates but show weak math preparation, and chronic absenteeism is a widespread challenge. Notable bright spots include exceptional upper-grade math at Lexington Elementary and strong science at Westmont Elementary, suggesting pockets of excellence within the broader Pomona Unified system.