Two-parent households continue to decline

From a column in the New York Times:

Decades ago, single parenthood was largely limited to poor people and minorities. Now it is increasingly common across middle America...

While the decline of two-parent families is most striking in the bottom quarter, that is a familiar story and had largely occurred by 1990. Much of the recent growth has occurred in the second-lowest quarter, sometimes called the working class. In that group, the share of households with children headed by unmarried parents has soared to nearly 40 percent and the growth has continued in recent years...

Via The Dish.