Overview of Cohabitation Research (2007)
There are now over 5.1 million heterosexual couples cohabiting in the United States (U.S. Census Bureau, 2006), which is a tenfold increase from 1970 when only 500,000 couples were cohabiting.
According to the renowned demographer Larry Bumpass, the current rate of cohabitation before marriage is nearly 70%. This means that for 70% of young people, their first couple experience is cohabitation rather than marriage. About half of cohabitating couples marry or break up after 2 years of cohabitation (Kennedy and Bumpass, 2007).