A family is the part of a household with at least two persons who are :
- a couple living within a household, with its child (if they have) belonging to the same household ;
- an adult with its child belonging to the same household (single-parent family).
In a family, the child, to be considered as one, must be single (without its own children) and have no spouse or child who belong to the same household. A household can include zero, one or several families.