Why is the Bahamas considered a country?

Why not? Just because it is crowded with mostly american tourists doesn't mean it's a part of the US. It used to be part of the british empire and gained idenpendency in 1973. read more

U.S.-BAHAMAS RELATIONS. The United States established diplomatic relations with The Bahamas in 1973 following its independence from the United Kingdom. As a neighbor, The Bahamas and its political stability are especially important to the United States. read more

The Bahamas (/ b ə ˈ h ɑː m ə z / ( listen)), known officially as the Commonwealth of The Bahamas, is an archipelagic state within the Lucayan Archipelago. read more

Geographically, the Bahamas are not part of the Caribbean. They are an independent country and politically are often linked with Caribbean countries as part of the larger West Indies. So yes, in terms of passport requirements, you would need a passport. read more