Architecture & Real Estate | November 9, 2021 3:32 pm

The Most Expensive US Zip Code Is a “Billionaire Favorite”

The median home price in this exclusive neighborhood is nearly $7.5 million, according to a new report

The 94027 — Atherton, California — is once again the priciest zip code in the U.S.
The 94027 — Atherton, California — is once again the priciest zip code in the U.S.
Justin Sullivan / Getty Images

Got a spare $7.5 million? Then you might be able to live in the most expensive U.S. zip code, according to a new report by PropertyShark.

For the fifth year in a row, Atherton, CA’s 94027 landed atop the real estate site’s list, boasting (and emphasis on “boasting”) a median home sale price of $7.475 million, a 7% increase in an area PropertyShark calls a “the billionaire favorite.”

If anything, the pandemic seemed to fuel home prices across the country this year, with the top 10 most expensive zip codes all surpassing the $4 million median sale mark for the first time.

Some key takeaways from the report:

  • The median home price in 33109 (Miami) jumped 66% year-to-year and is now the fifth priciest zip code in the U.S.
  • 70% of the country’s 100 most expensive zip codes are in California.
  • No surprise: San Francisco boasted the highest concentration of pricey zip codes.
  • Surprise: No zip codes in New York City landed in the top 20. The Upper West Side (10069) saw the biggest contraction at a drop of 39%.
  • States with just one pricey zip code include Florida, Maryland and Arizona. Only 10 states were represented in the list.
  • The sharpest price gain was 21056 on Maryland’s Gibson Island, which was up 97% Y-o-Y.

PropertyShark calculated median home sale prices across the country over ten months in 2021, taking into account condos, co-ops, and single- and two-family homes. Only zip codes that registered a minimum of three residential transactions were included, and due to the number of ties, the list of 100 most expensive zip codes actually features 127 areas.