The US State of North Carolina is farther north than South Carolina.
PCH; Georgia
Chiapas is such state.
The state you seek is Florida.
Alaska!!!
Connecticut
Texas.
The US state that is furthest south in the continental 48 states is Florida. Hawaii is by far the furthest south of all US states (18 degrees, 55 minutes).
South Dakota is further north than Wyoming.
Hawaii is the most southerly state, on the mainland it is Florida
There is only one national capital of the United States, Washington, D.C. But if you are referring to a state capital, then the furthest south would be Austin, Texas.
Texas has the farthest South international border in the United States.