Think you live in a swanky neighborhood?  Check out the list below for a look at some of the most expensive zip codes in the U.S.  With high concentrations of millionaires and billionaires and some pretty fantastic real estate on the market, these are places where a dollar won't get you very far

The Top Three

A regular at the top of the list, and this year's number one most expensive zip code is 07620, better known as Alpine, New Jersey.  Being at the top ain't cheap, and the median home price in this ultra-luxe neighborhood is more than $4.5 million.  Wanna be top dog in the country's priciest locale?  Be ready to shell out $53 million, the price tag of the most expensive home in Alpine.  That'll buy you bragging rights of being neighbors with the likes of Stevie Wonder and Sean "P. Diddy" Combs

Coming in at a close second is Atherton, California, 94207.  There's no doubt all your neighbors are wealthy in this west coast town, as the median home price here is $4.295 million.  But being on top in this town won't take such a big bite out of your wallet.  The most expensive home in 94207 is a mere $20 million

Rounding out the top three is Sagaponack, New York, 11962.  Rub elbows with the likes of billionaire industrialist Ira Rennert whose $200 million compound is located in this Long Island neighborhood.  You many also run into hedge fund boss David Tepper at the local grocery store.  He just tore down his $43.5 million home to build one that's bigger.  It'll cost you about $3.595 million to get a house in this sought-after Hamptons village

California Dominates Again

It seems California has become the preferred home of America's wealthiest, as it has the greatest number of zip codes on the list.  Silicon Valley certainly drives up California's appeal, as the country's tech giants have decided to call this area home.  Number four on the list is Hillsborough (94010); number 18 is Los Altos Hills and number 24 is Los Altos (sharing the 94022 zip); number 31 is Woodside (94062); and number 36 is Palo Alto (94301)

Southern California doesn't get left out of the mix, as many of the rich and famous call this area home.  The fifth spot on the list goes to the long time enclave for the wealthy that arguably has the most recognizable zip code on the list - that is, of course, Beverly Hills, 90210.  The beach community of Malibu (90265) comes in 12th on the list, and the Fresh Prince would be happy to know that Bel Air (90077) comes in at a respectable 19th

Honorable Mentions

Playgrounds of the wealthy also score high on the list, including many Colorado ski towns.  Aspen (81611) ranks 20th, Snowmass (81654) ranks 13, and Snowmass Village (81615) ranks 59.  Telluride (81435) makes it debut this year at number 28

There were surprises in Manhattan zip codes this year, as Soho (10012) outranked all other neighborhoods on the island to come in at number 6, followed by TriBeCa (10013) at number 7.  The charming West Village made a great showing at number 35.