Depending on where you start at it could be Mexico, Canada,
Cuba, and any place in Latin or South America.
Mexico is the closest country south of the US, as it borders the US to the south.
Mexico is the country located south of the us
I am from the United States and the country south of the US is Mexico.
The US is bordered to the south by Mexico.
Mexico is the country on the southern border of the US
Canada is north of the US, Mexico is south.
Mexico is the only country south of the western United States.
Mexico is the country immediately south of North America.
south of the U.S is Mexico
The country of Mexico borders the US to the south.
There is no country below the US, however Mexico borders it to the south
The largest Latin country is in South America and it is brazil
Mexico is on the US southern border
Mexico is the country south of the United States.
Mexico is south of the United States.