Serious incidents run in line with the district average, and this school reported across every federal category — the numbers have something behind them.
| CATEGORY | COUNT | TIER |
|---|---|---|
| Firearm or explosive possession | 0 | Serious |
| Homicide | 0 | Serious |
| Physical attack with weapon | 0 | Serious |
| Rape / sexual assault | 0 | Serious |
| Referral to law enforcement | 2 | Serious |
| Robbery with weapon | 0 | Serious |
| School-related arrest | 1 | Serious |
| Threat of attack with weapon | 0 | Serious |
| Harassment on basis of race/sex/disab. | 0 | Moderate |
| Physical attack without weapon | 50 | Moderate |
| Robbery without weapon | 0 | Moderate |
| Sexual harassment | 0 | Moderate |
| Threat of attack without weapon | 0 | Moderate |
| Bullying / harassment (general) | 0 | Minor |
Ontario High ranks #7 of 8 scoreable schools in this district.
| SCHOOL | GRADES | SCORE | GRADE |
|---|---|---|---|
| Valley View High (Continuation) | 09–12 | 90 | A |
| Rancho Cucamonga High | 09–12 | 86 | A |
| Los Osos High | 09–12 | 86 | A |
| Etiwanda High | 09–12 | 82 | A |
| Colony High | 09–12 | 78 | A |
| Alta Loma High | 09–12 | 65 | A |
| Chaffey High | 09–12 | 32 | A |
| Chaffey Community Day | 09–12 | — | C |