This is the percentage of children under age 18 who live in families headed by a person without a spouse present in the home. Children are defined as all sons/daughters of householders who are under 18 years of age.
(1990) U.S. Census Bureau. Census of Population and Housing, 1990: Summary Tape File 1C, (Table P21)/Prepared by the U.S. Census Bureau. Washington: The Bureau (WV University Office of Health Services Research), 1992. (2000) Calculated from Census 2000 Summary File 1 (SF 1) 100-Percent Data P28.