Revealed: the USA's most expensive property zipcodes

Atherton's 94027 ZIP code topped the list with house prices hovering at $6.7 million, followed by 94022 in Los Altos Hills, where homes are slightly less at around $5.4 million, reports VOA.

New York claimed five of the top 10 spots on the list, including Manhattan's Upper East Side at No. 3, which dropped from first place last year, and the Long Island beach town of Sagaponack at No. 5.

California had four of the top 10 spots. The only other state with a ZIP code on the list was New Jersey, with the city of Alpine, which slipped from second place in 2012 to No. 8 this year.

Forbes attributed the technology boom and an influx of wealthy foreign buyers from China and India, as well as American billionaires, for the increasing popularity of Atherton, which jumped from third place last year.

Its most expensive home for sale is listed at $33 million. Its cheapest, a two-bedroom bungalow, has an asking price of $1.2 million.

Colorado ski resort Aspen just missed the top 10, coming in 11th, followed by Coral Gables in Florida. Miami was far behind at No. 30 and Greenwich, Connecticut, came in at 34.