Major Basilicas
There are only five major basilicas, all in Rome:
Minor Basilicas
The majority of basilicas are termed "minor basilicas". Some of these basilicas are also cathedrals (seats of dioceses.)
... under the age of 18 living with them, 70.9% are married couples living together, 7.3% have a female householder with no husband present, and 17.9% are non-families. ...