ride bikes, walk dogs and stroll. The islands offer residents a suburb feel that is located between (and within minutes of) Miami Beach's South Beach and Miami's new Adrienne Arsht Center for the Performing Arts. Biscayne Island Biscayne Island is a neighborhood in the City of Miami, Florida, United States. It is also the westernmost of the Venetian Islands, a chain of artificial islands in Biscayne Bay. During the 1930s, the island was used as an airport known as Viking Airport, with a hangar, 2,600-foot sod runway and seaplane ramps; the airport was closed by 1937 and residential development began in the 1940s. The island is now home to apartment buildings, residential neighborhoods, and a toll plaza portion of the Venetian Causeway. Demographics As of 2000, the population of Biscayne Island had 412 people. The zip code for Biscayne Island is 33139. The area covers . As of 2000, there were 215 males and 197 females. The median age for males were 42.1 years old, while the median age for females were 48.0 years old. The average household size had 1.6 people, while the average family size had 2.4 members. The percentage of married-couple families (among all households) was 28.8%, while the percentage of married-couple families with children (among all households) was 4.0%, and the percentage of single-mother households (among all households) was 0.8%. The percentage of never-married males 15 years old and over was 19.6%, while the percentage of never-married females 15 years old and over was 14.6%. As of 2000, the percentage of people that speak English not well or not at all made up 6.9% of the population. The percentage of residents born in Florida was 24.8%, the percentage of people born in another U.S. state was 24.8%, and the percentage of native residents but born outside the U.S. was 4.7%, while the percentage of foreign born residents was 45.7%. San Marco Island San Marco Island is a neighborhood in the City of Miami, Florida, United States. It is the 2nd westernmost of the Venetian Islands, a chain of artificial islands in Biscayne Bay. It is between Biscayne Island and San Marino Island. It contains upscale houses and the Venetian Causeway. References External links Venetian Islands Homeowners Association Belle Isle Residents Association Islands Of Calm – New York Times Artificial islands of Florida Islands of Miami Islands of Miami Beach, Florida Islands of Florida