Travelers are voting Alcatraz Island as the best island near Pleasanton. There are 2 islands near San Francisco a city just 30 km from Pleasanton and 2 islands near Benicia which is 30 km distant. The most popular of these are Alcatraz Island near San Francisco and Angel Island around Benicia. You can find 9 islands near California and 140 islands in the country of United States. Our members favorite in California is Catalina Island and Alcatraz Island is the top pick in United States. Want more? Check out our map of islands near Pleasanton.