Some 62pc of mobile adults aged 25-34 report owning smartphones, according to a Nielsen study. This is despite research that suggests only 43pc of all US mobile phone subscribers own a smartphone.
Among those 18-24 and 35-44 years old, the smartphone penetration rate is hovering near 54pc.
Other groups show slightly lower penetration rates. Around 40pc of 12-17-year-olds and 40pc of 45-54-year-olds reported owning a smartphone, as opposed to a more basic feature phone.
Shiny appy smartphone owners
After younger adults, the segment with the second fastest-growing smartphone penetration rate is those aged 55-64.
Smartphone penetration among this older group is only 30pc, but it jumped 5pc this quarter.
As the smartphone market continues to expand, Android remains the most popular smartphone operating system in the US, with 43pc of the market, while Apple is the top smartphone manufacturer, with 28pc of smartphone consumers sporting an Apple iPhone.