You don’t need to be a real estate agent to know that New York and California are two notoriously expensive places to live. However, those inconceivably high property values aren’t just contained to mansions in Beverly Hills or office buildings in Midtown Manhattan.

Each year, PropertyShark crunches the numbers on real estate prices across the country to discover which ZIP codes are truly the most expensive—and this year, multiple ZIP codes across California and New York once again reigned supreme. Instead of analyzing asking prices, PropertyShark looked at each area’s median sale prices, which more accurately reflect how much people are actually willing to pay for each property based on supply and demand.

At the top of the list for the third straight year is Atherton’s 94027 in California’s Bay Area, home to Silicon Valley venture capitalists, sports figures like Golden State Warriors star Steph Curry, and more. The median sale price for real estate there is $7,050,000, and the luxury housing in the region definitely isn’t owned by the Currys’ neighbors alone—nearby ZIP codes that also cracked the top 20 include Palo Alto’s 94301 and 94306, Los Altos's 94022 and 94024, and several others.

PropertyShark

South of the Bay Area, Los Angeles and Orange County ZIP codes make impressive appearances on the list, too. Los Angeles’s Santa Monica (90402) and Beverly Hills (90210, of course) took the third and fourth spots, respectively, with median sale prices just over $4 million, and Orange County’s Newport Beach and Corona Del Mar also made the top 20.

Overall, California took a staggering 16 of the top 20 spots, and New York was the second-place state with four spots. Surprisingly, the most expensive New York ZIP code isn’t in the heart of the Big Apple—it’s farther east, in a Long Island village called Sagaponack, which is, unsurprisingly, in the Hamptons.

The top 20 (which is actually the top 22, because of two ties) also includes a Boston ZIP code and one in Medina, Washington, which borders Lake Washington.

Scroll on to find out just how expensive each ZIP code is, and read more about PropertyShark’s study here.

  1. Atherton, California (94027) // $7,050,000
  2. Sagaponack, New York (11962) // $4,300,000
  3. Santa Monica, California (90402) // $4,154,000
  4. Beverly Hills, California (90210) // $4,080,000
  5. New York, New York (10007) // $3,900,000
  6. Boston, Massachusetts (02199) // $3,669,000
  7. Palo Alto, California (94301) // $3,522,000
  8. New York, New York (10013) // $3,515,000
  9. Los Altos, California (94022) // $3,450,000
  10. Ross, California (94957) // $3,350,000
  11. Portola Valley, California (94028) // $3,300,000
  12. Medina, Washington (98039) // $3,200,000
  13. Los Altos, California (94024) // $3,150,000
  14. Newport Beach, California (92661) // $3,140,000
  15. Newport Beach, California (92662) // $2,900,000
  16. Corona Del Mar, California (92625) and Stinson Beach, California (94970) // $2,800,000
  17. Palo Alto, California (94306) // $2,751,000
  18. New York, New York (10282) // $2,660,000
  19. Los Gatos, California (95030) and Burlingame, California (94010) // $2,630,000
  20. Santa Barbara , California (93108) // $2,620,000

[h/t PropertyShark]