Key West’s Southernmost Edge: Where America’s Southernmost Point Lies

The southernmost point of the continental United States is not in Florida or California, but just steps from Key West on Florida’s Florida Keys. This tiny coastal stretch marks the geographic limit of the 48 contiguous states, a fact often overlooked in casual travel. Located at the southern tip of Key West, this landmark blends history, culture, and natural wonder into a singular destination.

What Defines the Southernmost Point?

The claim of Key West’s southernmost position stems from its geographic coordinates—approximately 24.5571° N latitude—placing it farther south than any other major U.S. city. Unlike the more widely known southern border states, this point is defined by precise measurements rather than state lines. The U.S. Geological Survey recognizes it as the southernmost point of the mainland U.S., though Key West itself is an island city, not a mainland point. Still, the southernmost recognizable point on U.S. soil lies at this coastal edge.

The History Behind Key West’s Southern Identity

Key West’s southern status is deeply tied to its strategic location in the Gulf of Mexico. First settled by Spaniards in the 16th century, the island became a key maritime hub due to its proximity to shipping lanes. In 1822, it was formally claimed by the United States, later developing a unique cultural blend shaped by Cuban, Caribbean, and American influences. The southernmost point became symbolic of this remote yet vibrant edge of American territory.

Visiting the Southernmost Point Today

Today, the southernmost point is marked by a simple yet striking monument—a concrete marker recognizing Key West’s geographic edge. Walking along Smathers Beach or the iconic Southernmost Point Buoy, visitors experience warm Caribbean air, turquoise waters, and sweeping views of the Gulf. Nearby, historic Fort Zachary Taylor stands as a Civil War relic, offering deeper insight into the island’s layered past.

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