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Email BoardJefferson Elementary
1040 South Vicentia Avenue, Corona, CA 92882-4124
Summary
Jefferson Elementary is badly underperforming.
Reading and math results average to the 8th percentile among comparable California schools.
Only 24.0% of students met California's reading standard, and it is trending down.
Math is weaker: 13.1% of students met California's math standard, and it is trending down slightly.
Proficiency stats
| Current Reading Proficiency | 24.0% |
| Current Math Proficiency | 13.1% |
| Reading State Rank | 4,123/4,657 (11th percentile) |
| Math State Rank | 4,439/4,657 (5th percentile) |
School information
| Student / Teacher Ratio | 21:1 |
| Student enrollment (2024–25) | 561 |
| Low-Income Students | 531 (94.7%) |
| English Learners | 246 (43.9%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 4.9 points from last year and fell 7.0 points over the full period. Math fell 3.1 points from last year and fell 1.2 points over the full period.
•Math -1.2 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Hispanic or Latino and White students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 18.8% to 31.4% across the grades shown. Overall, the school’s reading results rank No. 4,123 of 4,657 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
Results for both income groups are unavailable, so a current reading gap cannot be calculated.
•English Learners vs English Native
7.4% of English learners meet the reading standard, compared with 28.7% of English-only students. The gap widened as English-learner results fell and English-only results rose.
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Math Proficiency Scores
2026 state test results
Race and Ethnicity
Hispanic or Latino students have the strongest math results at about 14% proficiency. The other reported groups range from about 0% to 0%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 3.0% to 19.8% across the grades shown. Overall, the school’s math results rank No. 4,439 of 4,657 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
Results for both income groups are unavailable, so a current math gap cannot be calculated.
•English Learners vs English Native
2.4% of English learners meet the math standard, compared with 17.2% of English-only students. The gap widened as English-learner results rose and English-only results rose.
•Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 1,479 schools for reading and 1,483 for math. The comparison uses 2026 California K–6 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Jefferson Elementary compare within the district?
Jefferson Elementary is No. 31 in both reading and math proficiency among the 31 K–6 schools in Corona-Norco Unified with 2026 results.
Explore the district’s schoolsHow does Jefferson Elementary rank in California?
Jefferson Elementary ranks No. 4,123 of 4,657 in reading and No. 4,439 of 4,657 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Jefferson Elementary compare within the district?
Low-income students here rank No. 31 in both subjects among 31 K–6 district schools with reportable 2026 results for this group. 23.8% meet the reading standard and 12.7% meet the math standard.
See results by student groupHow does Jefferson Elementary compare with other schools in Corona?
Jefferson Elementary is No. 20 in both reading and math proficiency among the 20 K–6 schools in Corona with 2026 results.
Explore schools in CoronaHow does Jefferson Elementary compare with other schools in Riverside County?
Jefferson Elementary is No. 95 in reading and No. 102 in math proficiency among the 107 K–6 schools in Riverside County with 2026 results.
Explore schools in Riverside CountyWhich schools should I compare?
Schools serving K–6 in the same district.
| School | Math | Reading |
|---|---|---|
| Jefferson ElementaryThis school | 13.1% | 24.0% |
| Benjamin Franklin Elementary | 50.3% | 61.4% |
| Corona Ranch Elementary | 50.9% | 54.2% |
