The rankings, published by CNBC, were determined by median home sale prices.
Three of those four zip codes are on the east end of Long Island, led by No. 2 Sagaponack (11962), which the report says has a median home sale price of $6,972,500, behind only No. 1 Atherton, California (94027), which is $9 million.
The other zip codes in the Hamptons making the Top 10 were Water Mill (11976) and Bridgehampton (11932).
The other Northeast zip code on the list is Boston's 02199 and its median home sales price of $6.2 million.
Click here to read the CNBC report.
Click here to follow Daily Voice Newtown and receive free news updates.