Boston ZIP code 02199 is one of the most expensive in the nation for housing, a new report from PropertyShark shows.

From January through October of this year, the Boston ZIP code had a median home sale price of $3.245 million, good for No. 27 in the U.S., the report found. 

Five other Bay State ZIP codes cracked the nation’s top 100. Nantucket’s 02554 ranked No. 46 at $2.538 million; Chilmark 02535 was No. 58 at $2.3 million; Weston 02493 was No. 64 at $2.198 million; Wellesley Hills 02481 was No. 74 at $2.055 million; and 02468 in Waban finished No. 80 at $2.014 million.

The three priciest ZIP codes this year are Atherton, California, 94027, in Silicon Valley, where the median home sold for $7.9 million; Sagaponack, N.Y., 11962, in the Hamptons, with a median home price of $5.75 million; and Ross, California, 94957, in Marin County north of San Francisco, where the median home sold for $5.5 million.

The country’s most famous ZIP code — 90210 in Beverly Hills, California — has a median home price of $5.12 million, good for fifth overall.

Ninety of the nation’s 128 most expensive ZIP codes are in California, and most of those are in the San Francisco Bay Area.