Five wireless carriers -- AT&T, Verizon, Sprint, T-Mobile and U.S. Cellular -- will carry the device, says the electronics maker.
AT&T and Verizon have not revealed a specific launch date, but it appears likely the smartphone will launch on June 21. That's when Sprint and T-Mobile have announced the phone's availability. According to Verizon's website, the company will start taking pre-orders on June 6.
The Galaxy S III, which launched in Europe last week, features a 4.8-inch Super AMOLED touchscreen, 8-megapixel camera, support for near-field communication and the personal assistant S Voice.
It runs Google's Android 4.0 operating system and will support 4G.