According to a newly-released report by the Pew Research Center, there were approximately 2.6 million U.S. households led by single fathers. In 1960, there were less than 300,000.
In contrast, single mothers headed 8.6 million households with children, up from 1.9 million in 1960.
The Pew report is linked below.
Pew Research: 2.6 million U.S. Households With Children are Headed by Single Fathers