2026 California state test results
Byron, California school test scores and rankings
Across 2 public schools with results, the median reading proficiency was 60.1% and the median math proficiency was 37.8%. The median combined result ranked at the 24th percentile among comparable California schools.
Located in Alameda County, Contra Costa County.
Schools with scores
2
Students represented
391
Median school percentile
24th
Schools improving
1
Schools declining
0
Schools
Rank combines reading and math standing among comparable California schools. CA Percentile shows that combined statewide standing. Select any header to sort.
| 1 | Excelsior Middle | Middle | Byron Union Elementary | 33.2% | No | 43.2% | 29.5% | 49th |
| 2 | Mountain House Elementary | Combined (K-8) | Mountain House Elementary | 14.3% | No | 76.9% | 46.1% | 0th |
Highest-ranked schools by level
Middle schools
- 1Excelsior Middle
49th percentile
Districts serving local schools
District scores cover the entire district, including schools outside this place when district boundaries cross city lines. Select any header to sort.
| 1 | Mountain House Elementary 1 schools districtwide | 76.9% | 46.1% | 87th |
| 2 | Byron Union Elementary 5 schools districtwide | 47.9% | 40.3% | 63rd |
Other cities in Alameda County
How these rankings work
Rankings use the latest available California reading and math results. Schools are compared with other California schools serving similar grade levels. Medians describe the typical local result and are not districtwide averages. Virtual schools are excluded, and cities with fewer than three scored schools are omitted from the indexed location directory.