Romney also took Idaho, Vermont, Virginia and his home state of Massachusetts, where he served as governor.
Romney addressed supporters in Boston as he started racking up the wins saying, "Tonight we're doing some counting, we're counting up the delegates for the convention and that looks good, and we're counting down the days until November, and that looks even better."
Rick Santorum was projected to win North Dakota, Oklahoma and Tennessee, and he put up a strong fight for Ohio. "We went up against enormous odds not just here in the state of Ohio, where who knows how much we were out-spent, but in every state."
Newt Gingrich was hailed the winner of Georgia, which he represented in Congress for two decades. "This is amazing. I hope the analysts in Washington and New York who spent June and July explaining our campaign was dead will watch this tonight and learn a little bit from this crowd and from this place."
The highest Ron Paul finished in any of the Super Tuesday contest was second. Earlier he said he's the only candidate working to protect personal liberties and privacy.
The results for Alaska took a little longer than the other states. Romney was projected to win it early this morning.
Next up, the Kansas caucuses on Saturday. Guam, the Virgin Islands and Northern Mariana Island also hold caucuses that day.