Yes, the gulf of mexico is a part of the southwest region
No. It is on the southern region.
No. The gulf itself is a body of water within a region: North America.If you mean the land area circling the Gulf of Mexico, that indeed is a region, known as the oil coast.
The Gulf of Mexico is located to the south of the Southeastern US.
The costal plains
Galveston is in the Gulf Coast region of Texas, located on Galveston Island in the Gulf of Mexico.
Gulf of Mexico
Veracruz is located on the southern Gulf of Mexico coast.
Around the Gulf of Mexico and in the Yucatan peninsula.
The costal plains
Southeastern Mexico, close to the Gulf of Mexico
The Mississippi River is the river that connects to the great plains regions with the gulf of Mexico.