High Quality Content by WIKIPEDIA articles! Lastovo (pronounced ; Italian: Lagosta, German: Augusta, Latin: Augusta Insula, Greek: Ladestanos, Illyrian: Ladest) is an island municipality in the Dubrovnik-Neretva County in Croatia. The municipality consists of 46 islands with a total population of 792 people, of which 93% are ethnic Croats, and a land area of approximately 53 km2 (20 sq mi). The biggest island in the municipality is also named Lastovo, as is the largest town. The majority of the population lives on the 46 km2 island of Lastovo.