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Data Dictionary: Census 2000
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Survey: Census 2000
Data Source: U.S. Census Bureau
Table: P31. Families [1]
Universe: Families
Table Details
P31. Families
Universe: Families
Variable Label
Relevant Documentation:
Excerpt from: Social Explorer, U.S. Census Bureau; 2000 Census of Population and Housing, Summary File 1: Technical Documentation, 2001.
Family Type
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.

Married-couple family
A family in which the householder and his or her spouse are enumerated as members of the same household.

Other family
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.

Nonfamily household
A householder living alone or with nonrelatives only.