The 10 Most Expensive ZIP Codes in America

Couple in front of a large house for sale
Darren Baker /

Compared with residents of most nations, Americans live in fabulous wealth and splendor. But some neighborhoods take it to the next level.

In these places, the average selling price of a home is well beyond seven figures. In fact, in the nation’s top 10 most expensive ZIP codes, the average selling price is at least $4 million. In the very toniest of neighborhoods, it is well beyond that number.

Recently, PropertyShark crunched the numbers and uncovered the 100 most expensive ZIP codes in America as determined by the median home sales price during 2021. Following are the areas that topped the list.

10. Medina, Washington

Felix Mizioznikov /
  • ZIP code: 98039
  • Median 2021 home sale price: $4 million

A favorite haunt of technology billionaires — including Jeff Bezos and Bill Gates — Medina saw home values leap 24% in 2021. PropertyShark says this is the sixth consecutive year the King County city has been home to the most expensive real estate in the Pacific Northwest.

9. Los Altos, California

Mansion under construction in Los Altos Hills, California
Hank Shiffman /
  • ZIP code: 94022
  • Median 2021 home sale price: $4.052 million

How expensive is it to live in Los Altos? The Mercury News says your monthly mortgage payment here is likely to be around $16,650.

Apparently, you pay for peace and quiet. This Santa Clara County city has banned commercial zones outside of downtown.

8. Santa Monica, California

Santa Monica, California
Natalia Macheda /
  • ZIP code: 90402
  • Median 2021 home sale price: $4.058 million

This beachfront city in Los Angeles County is home to the Golden State’s Original Muscle Beach, and you will need to flex your wallet to live here. A local real estate agent told Pods, a moving and storage company, that entry-level homes start at $1 million. And for that price, you get all of 800 square feet.

7. Santa Barbara, California

Santa Barbara California
Virrage Images /
  • ZIP code: 93108
  • Median 2021 home sale price: $4.103 million

The chic Santa Barbara enclave of Montecito saw prices soar 40% year-over-year, lifting the home of Oprah Winfrey and Prince Harry and Meghan Markle to No. 7 on this year’s list. In fact, Santa Barbara County logged five entries on this year’s list, up from just one in 2020.

6. Beverly Hills, California

Woman in Beverly Hills, California
Ivanova Ksenia /
  • ZIP code: 90210
  • Median 2021 home sale price: $4.125 million

Everyone of a certain age remembers when a 1990s-era television show immortalized this ZIP code, and it has lost none of its cachet in the years since. PropertyShark notes that this city in Los Angeles County has made its list year after year, and 2021 is no exception.

5. Miami Beach, Florida

Home on Fisher Island, Florida
Thomas Barrat /
  • ZIP code: 33109
  • Median 2021 home sale price: $4.475 million

Think home values in your neighborhood have climbed? Check out the exclusive Miami Beach neighborhood of Fisher Island, where sales prices ballooned a hard-to-fathom 66% year-over-year. With property appreciation like that, living in paradise pays off with more than just great weather.

4. Ross, California

Redwood forest of Muir Woods National Monument, California
Sundry Photography /
  • ZIP code: 94957
  • Median 2021 home sale price: $4.583 million

Ross home values crossed over into the exclusive $4 million club this year for the first time, thanks to sales prices that shot up 27% year-over-year in that Marin County location. Silicon Valley executives and celebrities love to call this neighborhood home.

3. Sagaponack, New York

Home in Southampton Village, Long Island
Leonard Zhukovsky /
  • ZIP code: 11962
  • Median 2021 home sale price: $5 million

After three consecutive years at No. 2, Sagaponack slipped a spot this year. But don’t shed a tear for this Hamptons haven: Prices were still up 29% year-over-year, making the neighborhood’s rich residents even wealthier.

2. Boston, Massachusetts

Back Bay Boston
Jorge Salcedo /
  • ZIP code: 02199
  • Median 2021 home sale price: $5.5 million

This Boston ZIP code disappeared from 2020’s list, as the coronavirus pandemic depressed sales. But it came roaring back in 2021, and values here remain perched at an all-time high. PropertyShark notes that it is even pricier here than in “ultra-exclusive Hamptons enclaves.”

1. Atherton, California

A quiet street in Atherton, California
Hank Shiffman /
  • ZIP code: 94027
  • Median 2021 home sale price: $7.475 million

For the fifth straight year, this ZIP code in California’s San Mateo County is the nation’s most expensive — and by a margin of nearly $2 million compared with its nearest competitor.

PropertyShark notes that values rose 7% year-over-year, meaning this exclusive neck of the woods is only getting pricier with each passing year.

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