Statistic:

 Six million households contain cohabitating couples (United States Census Bureau, 2007).

                                                                                                                                                                                                                                                        

Source:

United States Census Bureau (2007). America’s Families and Living Arrangements: 2007. Retrieved on June 29, 2009, from http://www.census.gov/population/www/socdemo/hh-fam/cps2007.html

Description of Sample:

“Demographic characteristics of households and families are collected annually in the March Current Population Survey (CPS) for the Nation. Since 1996, the relationship to householder item in CPS has contained a category “unmarried partner.” This category remains, but in addition, beginning in 2007, there is a direct question for adults living with a nonrelative that asks whether they have a boyfriend, girlfriend, or partner living in the household. In this way, unmarried partner couples in which neither is the householder can be identified.”

Scope of Study:

National