A report released Wednesday by the Pew Research Center says 56% of all American adults now own a smartphone while more than a third still use conventional cellphones. It also found nearly 10% of U.S. adults don't own a mobile phone at all.
The adoption of smartphones by U.S. adults is up 10 percentage points from February 2012 and up more than 20 percentage points compared to two years ago.
Smartphones are particularly prevalent among young adults. The 25-to-34 age group has the highest adoption of smartphone, with 81% saying they own one.
"Ownership is particularly high among younger adults, especially those in their 20s and 30s," the Pew report said. "Although a majority of Americans in their mid-40s through mid-50s are now smartphone adopters."
When it comes to the type of smartphones that U.S. adults use, they are split pretty evenly between Apple's iPhone and Android devices. One quarter of U.S. adults who own a cellphone say they use an iPhone while 28% have an Android device.
BlackBerry ownership is down to 4% of U.S. adults who own a cellphone and just 1% say they use a phone running on the Windows Phone operating system.