| State Rank | District Rank | City Rank | School | City | Students | Proficiency | ELA | Math | Score |
|---|---|---|---|---|---|---|---|---|---|
| 26 | 1 | 1 | Chaparral Middle | Diamond Bar | 1,133 | 80.9% | 82.44% | 79.31% | 8.1 |
| 50 | 2 | 1 | South Pointe Middle | Walnut | 879 | 77.4% | 77.72% | 77.09% | 7.7 |
| 133 | 3 | 2 | Suzanne Middle | Walnut | 1,120 | 68.3% | 72.12% | 64.49% | 6.8 |