According to data from the World Economic Forum nearly 80 percent of the people in the U.S. are using the Internet from any device, including mobile phones. A chart compares the percentage of Internet use in the U.S. in contrast to countries with advanced economies, emerging and developing economies and all countries average. The data is from 2005 to 2011.
According to Pew Research Center, 87 percent of the adults in the U.S. are using the Internet as of January 2014. The chart below shows the total population in the U.S. since 1995.