Summary:
ZIP code 92860 has five public elementary schools serving kindergarten through grade 6, all in Corona-Norco Unified. Together, they enroll 2,765 students, with school sizes ranging from 327 to 861. In 2025–26, the schools’ unweighted average was about 50% in ELA and 40% in math, slightly above state averages of 49% and 38%; in science, the area average was 27%, well below the state’s 36%. The main takeaway is that strong area-wide averages in ELA and math mask wide differences between schools, while every school trails the state in science.
Highland Elementary stands out in ELA and math, leading the group at 65% and 58%—15 and 19 percentage points above the state. Norco Elementary is also above the state in both subjects, at 54% in ELA and 45% in math. At the other end, Riverview Elementary has the lowest results, 37% in ELA and 26% in math; the gap between Highland and Riverview is 27 points in ELA and 31 in math. Norco leads science at 35%, just 1 point below the state, while Sierra Vista Elementary is lowest at 18%.
Recent trends differ by subject: the five-school ELA average was essentially unchanged from 2024–25, math rose 3 points, and science fell 10 points even as the state science result rose 3 points. Math improved at three schools, while science declined at all five. SchoolDigger’s average statewide rank percentile rose from 47 in 2023–24 to 57 in 2024–25, then eased to 56 in 2025–26; Highland’s percentile climbed from 69 to 77 over that span, while Sierra Vista rose and then fell. Other measures offer context, not an explanation of results: all five report free/reduced lunch eligible for 2024–25, from 63% at Highland to 84% at Riverview. Riverview has the lowest reported student-teacher ratio, 18.1, yet Highland and Norco also outperform the state in ELA and math with ratios of 22.9 and 23.4. Riverview’s chronic absenteeism is 24%, compared with 18% statewide; Highland’s is 15%.
Thank you for your feedback!