Isla Santa Catalina, officially known as Isla Catalana, is an island in the Gulf of California east of the Baja California Peninsula. The island is uninhabited and is part of the Loreto Municipality. The island is located south of the Gulf of California and is located 25 km from the peninsula of Baja California. It has about 13 km long and 4 km wide maximum with total area of 39.273 square kilometers. Isla Catalana, being uninhabited, is separated by the sea from the nearest town, Loreto, which lies about 60 km away.