Source: US Census Bureau [pdf]
Notes: Last year, 83.8% of US households reported computer ownership, with 78.5% having a desktop or laptop computer and 63.6% having a handheld computer such as a smartphone. Overall, 74.4% reported using the internet (most commonly via a cable modem – 42.8%) and 73.4% a high-speed connection. Looking at individual characteristics, high-speed connections were most prevalent among Americans aged 35-44 (82.7%), Asians (89.3%), and those in the Northeast (81.7%).
Related: [Debrief] US Media Audience Demographics