Saint Lucia is an island country in the eastern Caribbean. Part of the Windward Islands of the Lesser Antilles, it is located north/northeast of the island of Saint Vincent, northwest of Barbados and south of Martinique. It covers a land area of 617 km² (238 sq mi) with an officially estimated population of over 184,100 people as of mid 2023. The nation's capital and largest city is Castries.