If you have a handful of Americans older than 12 years of age in a room, chances are pretty good that one of them owns an MP3 player.

A new survey done by Ipsos showed that 1 in 5 Americans over 12 have an MP3 player, and 1 in 20 people have more than one player. Not surprisingly, the results vary by age. 54% of teenagers own a player, while that falls to 30% in 18 to 34 year olds. From 35 to 54 that number drops to 13%. iPod ownership increased by 15% from last year and has doubled since 2003.

Ipsos also looked at where people got the music on their players from. 44% of people said that they rip music from their own CD collections, and 6% more said that they borrowed someone else’s collection to rip. 25% pay for their music from a fee-based downloading service while 19% use a file sharing service (or at least that many admitted that they did).