A family includes a householder and one or more other people living in the same household who are related to the householder by birth, marriage, or adoption. All people in a household who are related to the householder are regarded as members of his or her family. A household can contain only one family for purposes of census tabulations. Not all households contain families since a household may be a group of unrelated people or one person living alone.
Families are classified by type as either a "married-couple family" or an "other family" according to the presence of a spouse. "Other family" is further broken out according to the sex of the householder. The data on family type are based on answers to questions on sex and relationship that were asked on a 100-percent basis.
A family in which the householder and his or her spouse are enumerated as members of the same household.
Male householder, no wife present
A family with a male householder and no spouse of the householder present.
Female householder, no husband present
A family with a female householder and no spouse of the householder present.
A householder living alone or with nonrelatives only.