The census showed other changes that reflect trouble for the traditional family. For example, the number of people living alone increased 21 percent, and the number of women rearing children without husbands increased 25 percent.

Of the nation's 105.5 million households, slightly more than half—54.5 million—are married-couple families. Unmarriedpartner families—both heterosexual and homosexual— totaled 5.5 million, or 5 percent of all U.S. families, up from 3 percent a decade ago. (Source: The Associated Press.)