On The Radio: 93 Percent of Americans Still Listen to Broadcast Radio. The tally shows that roughly 93 percent of Americans over the age of 12 – ie, 242.1 million users – tune into traditional, broadcast radio at least once a week. The broader US population is now pushing past 313 million, with a substantial chunk (ie, approximately 15 percent or so) under the age of 12. (Digital Music News). The most possible explanation is convenience. You just turn the radio on. Internet based radio stations will be able to compete when it becomes user friendly with a simple click of a button.