| Cities |
|---|
| Caloocan City, Northern Manila (3nd) |
| Malabon, Northern Manila (3nd) |
| Navotas, Northern Manila (3nd) |
| Valenzuela, Northern Manila (3nd) |
| Postal Codes in National Capital Region |
|---|
| City of Manilla (1st) |
| Eastern Manila (2nd) |
| Northern Manila (3nd) |
| Southern Manila (4th) |