- Fisher Island, a private, man-made island off the coast of Miami, is currently celebrating its 100th anniversary.
- Members-only Fisher Island is known for being the richest ZIP code in the US, where the average income of residents is $2.2 million and the median home value is roughly $2.7 million.
- The island, although founded in 1919, rose to prominence in the late 1920s when a Vanderbilt traded his yacht to land owner Carl Fisher for the island.
- Here are photos of what the richest ZIP code in America looked like once upon a time, and what it looks like now.
- Visit Business Insider's homepage for more stories.
In the 1920s, William K. Vanderbilt II casually offered his yacht to Miami real-estate tycoon Carl Fisher in exchange for ownership of Fisher's man-made island.
Today, that island is known as the richest ZIP code in the US, according to Bloomberg, and it's celebrating its 100th birthday this month.
Fisher Island is a members-only enclave off the coast of Miami, where the average income of residents is $2.2 million and the median home value is roughly $2.7 million.
As Business Insider's Katie Warren previously reported, to become a member, you must pay a $250,000 fee and $22,256 in annual dues in addition to purchasing a multimillion-dollar condo in one of 30 luxury condominium towers.
The 216-acre island can only be accessed by private shuttle boats, features sand imported from the Bahamas, has eight restaurants, a golf course, 18 tennis courts, two marinas, a K-8 school, and more.
Keep reading for a look at what super-exclusive Fisher Island looked like back in the day and what it looks like now.
In 1919, Miami based real-estate tycoon Carl Fisher purchased a man-made island off the coast of Miami, with plans to turn it into a seaport.
Source: Fisher Island Club
Today, that same island is a 216-acre members-only island getaway for the elite — and also the richest ZIP code in the US.
Source: Business Insider, Bloomberg
In the 1920s, a Vanderbilt traded his 250-foot yacht for the island.
Source: Fisher Island Club
He built up an estate and lived on the island during the winter months until his death in 1944.
Source: Business Insider
Business Insider's Katie Warren previously reported that Vanderbilt built a "Mediterranean-style compound" with "lush landscaping, guest homes, tennis courts, and swimming pools."
Source: Business Insider
The mansion includes a 2,250-square-foot ballroom and a 6,800-square-foot terrace ...
Source: Fisher Island Club,Business Insider
... which can now be rented out as a wedding venue.
Source: Fisher Island Club
The Vanderbilt mansion is still the focal point of the island ...
Source: Business Insider
... even though there are 30 luxury condominium buildings now.
Source: Business Insider
Those condominiums are home to 700 families, but only 30% of them remain on-island year-round.
The median home value on Fisher Island is currently $2.7 million. The average income of the island's residents is $2.2 million, making the ZIP code the richest in the country, according to Bloomberg.
To become a member, in addition to purchasing a multimillion-dollar condo, you must pay a $250,000 initial fee and $22,256 in annual dues.
A private shuttle boat or seven-minute private ferry is necessary to get to the island, which includes private beaches with sand imported from the Bahamas, eight restaurants, a golf course, a spa, 18 tennis courts, and two marinas.