Caballo is an island in the entrance to the Philippines' Manila Bay. Caballo, along with the larger Corregidor (2 km to the north), separates the harbor entrance into a northern and southern channel. It is doubtful that Caballo measures even 5 km² in area.
... under the age of 18 living with them, 60.9% are married couples living together, 12.2% have a female householder with no husband present, and 21.9% are non-families. ...