Summary
Parkridge Elementary in Corona, California, serves 634 students in grades K–6 in Corona-Norco Unified. In 2025–2026, its proficiency rates were below both the district and state in English language arts (ELA), math, and science. The central concern is that results are low across all three subjects, with math showing the deepest gaps.
Compared with ten nearby schools, Parkridge was second-lowest in each subject: 28% in ELA versus a 45% nearby average, 15% in math versus 35%, and 18% in science versus 29%. Its results were also below the state and district: ELA was 21 points below the state and 30 below the district; math was 23 and 30 points below, respectively; and science was 18 and 23 points below. Science is a relative bright spot because its gaps to nearby schools, the state, and the district were smaller than those in ELA or math. Still, only one nearby school scored lower in each subject.
Over four years, ELA rose modestly, from 26% in 2022–2023 to 28% in 2025–2026, while math slipped from 16% to 15% and science was essentially unchanged at 18%. All three results fell in the latest year: ELA by 2 points, math by 1, and science by 7. SchoolDigger ranked Parkridge at the 13th percentile statewide, with one star, in 2025–2026; its standing has declined from the 26th percentile in 2018–2019. One subgroup has recently improved: SchoolDigger’s ranking for Special Education Students rose from the 10th percentile in 2023–2024 to the 26th in 2025–2026, above the school’s overall 13th-percentile standing. Context includes a 21.8 student-teacher ratio in 2024–2025, second-lowest among nearby schools with data, and 96% of students reported as free/reduced lunch eligible in 2024–2025, the highest share among those schools.
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