Travelers are voting San Pietro di Castello (island), San Servolo and Sant'Erasmo as the best of 20 islands near Venice. There are 20 islands near Venice a city just 39 km from Venice and 20 islands near Mestre which is 40 km distant. The most popular of these are Giudecca near Venice and San Pietro di Castello (island) around Mestre. You can find 20 islands near Veneto and 45 islands in the country of Italy. Our members favorite in Veneto is San Pietro di Castello (island) and Palmaria Island is the top pick in Italy. Want more? Check out our map of islands near Venice.