Saint Croix is an island in the Caribbean Sea, and is the largest of the U.S. Virgin Islands. Inhabitants are called Crucians. There are two towns on the island; Christiansted with a population of 2,433 and Frederiksted with a population of 859. The total population of the island as per the 2010 U.S. Census is 50,601. Who knew this even existed? certainly not me.