“91% of Americans ages 12 and older had listened to traditional AM/FM radio in the week before they were surveyed in 2015, according to Nielsen Media Research. […] In research asking about how people are learning about the U.S. presidential election, 44% of adults said they learned about it from radio in the past week. Radio outpaced both national (23%) and local (29%) print newspapers, although it trailed local TV news (57%) and cable TV news (54%).”

Pew Research State of the News Media 2016