None:
The answer is Florida and maybe Puerto Rico if you count that as a state. It is becoming a state but we don't know when, or if they already did, then Puerto Rico would count.
In the US that would be Florida.
Florida.
which latin American country shares with the United States a long coastline on the Gulf of Mexico
On the Atlantic coastline of the United States in the Western and Northern Hemispheres of the world as we know it.
Florida.
United states and mexico
Pacific - Alaska Atlantic - Maine
You are referring to the Gulf of Mexico which borders from the southern tip of Florida to the southern tip of Texas.
There are not sixteen states on the Southern coastline of the US. I count six. Go to a map of the United States, locate the Southern coast (that's along the Gulf of Mexico) and check the names of the states.
Gulf Of Mexico Atlantic Ocean Pacific Ocean
northen countries a united states in canada
The United States of America
southeast so by the gulf of Mexico and the Atlantic Ocean
North Carolina has a coastline on the Atlantic Ocean. Wyoming is an inland state located in the western region of the United States.