| RIDF | Category | Areas (ha) in Dagupan City Affected By Flood |
| 5-year | Low | 1064.53 |
| Medium | 1466.22 | |
| High | 902.71 | |
| 10-year | Low | 924.44 |
| Medium | 1505.79 | |
| High | 1085.66 | |
| 25-year | Low | 673.61 |
| Medium | 1612.79 | |
| High | 1322.42 | |
| 50-year | Low | 543.05 |
| Medium | 1655.08 | |
| High | 1472.62 | |
| 100-year | Low | 475.07 |
| Medium | 1650.91 | |
| High | 1610.55 |