From comScore’s latest report:
Smartphone OEM Market Share: 190.3 million people in the U.S. owned smartphones (76.7 percent mobile market penetration) during the three months ending in June. Apple ranked as the top OEM with 44.1 percent of U.S. smartphone subscribers (up 1.5 percentage points from March). Samsung ranked second with 28.1 percent market share, followed by LG with 8.3 percent, Motorola with 4.9 percent and HTC with 3.4 percent.
Thanks to Asymco’s Horace Dediu for the fever chart.