sorry to argue, [@HeySeuss], but there actually isn't a US federal law concerning age of consent with a single number. The US age of Majority is primarily 18, though. (exceptions: Alabama (19), Nebraska (19 or upon marriage), Puerto Rico (21) and Mississippi (21))

[quote]Federal law makes it criminal to engage in a sexual act with another person who is between the age of 12 and 16 if they are at least four years younger than you. Each state takes a different approach as the age of consent has ranged from 10 to 18.Jul 22, 2014[/quote]