Statspotting is reporting that half of all US households own atleast one Apple product:

““Half of all U.S. households own at least one Apple product, according to CNBC’s All-America Economic survey.
That’s more than 55 million homes with at least one iPhone, iPad, iPod or Mac computer. And one-in-10 homes that aren’t currently in that group plan to join it in the next year.””

Source: Statspotting