Smartphones are now owned by the plurality of American adults. In February 2012, 46 percent of adults owned a smartphone--up from 35 percent in May 2011. A smaller 41 percent own a cell phone that is not a smartphone (down from 48 percent last May), and 12 percent do not own any kind of cell phone (down from 17 percent last May).
Smartphones are owned by the majority of people with household incomes of $75,000 or more and by the majority of those with at least some college education. Most adults under age 45 own a smartphone. Here are the percentages by age...
Source: Pew Research Center, Nearly Half of American Adults Are Smartphone Owners