After maintaining the No. 1 spot for the past eight years, Atherton has dropped to the second most expensive zip code in the ...

Editor's Note: The Business Journals evaluated almost 33,200 ZIP codes to compile its new wealth index. The wealthiest ZIP codes rankings are intended to capture the greatest concentrations of wealth.

Coming in second doesn’t make Atherton (ZIP code 94027) an affordable place to live, though. For perspective, the cheapest home sold in 2025 so far went for $3 million. Meanwhile, the most expensive ...

Despite numerous economic and social challenges, Los Angeles County’s real estate still has huge appeal. It has more ZIP codes ranking among America’s priciest places to live than any other U.S.