Real estate trends come and go, and apparently so do iBuying divisions of Zillow, but expensive housing remains eternal. In a recently released roundup of the 100 most expensive zip codes in the country, Washington naturally made an appearance.

We're one of seven states that contributed multiple entries to the list, which technically includes 127 zip codes because ties equate to one spot. Medina (98039) landed in the No. 10 slot with a median 2021 sale price of $4 million, down a smidgen from its No.9 ranking in 2020. Mercer Island's (98040) median sale price of $1.79 million looks paltry by comparison but was good enough to earn it the No. 82 spot on the list.

California (surprise) dominated this year, with 70 percent of the zip codes in this year's list and 15 of the top 20. That includes what has been the most expensive zip code for five consecutive years: Atherton (94027), with a median sale price of (deep breaths) $7.4 million. By comparison, only two other zip codes in the country reached the $5 million mark. 

Other notable trends include a loosening of New York’s classic chokehold on the list. For the first time ever, New York City had no entries in the top 20 this year, and New York state held three fewer spots than last year. But the East Coast was well represented as a whole. Massachusetts’s 02199 (Boston) claimed the No. 2 spot, while Gibson Island (21056) led Maryland to its highest-ever position at No. 23.

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