“A family household is a household maintained by a householder who is in a family (as defined above), and includes any unrelated people (unrelated subfamily members and/or secondary individuals) who may be residing there. The number of family households is equal to the number of families. The count of family household members differs from the count of family members, however, in that the family household members include all people living in the household, whereas family members include only the householder and his/her relatives” (U.S. Census Bureau, 2004).
“Consists of a householder living with one or more individuals related to him or her by birth, marriage, or adoption. The householder and all the people in the household related to him or her are defined as family members.” (Wang, 2005)