GRAPEVINE, Texas — “We are witnessing a cultural revolution.” ...

According to Pew, 51% of adult men under 29 were single compared to just 31% of women the same age. Similarly, Harvard found that 45% of women were involved in a long-term romantic relationship ...

Two such cities tied for the No. 1 spot: Baltimore and Washington, D.C., both with about 86 single guys per 100 single women. Boston ranked third with around 91 men per 100 women.