The Most Expensive Houses in the 10 Most Expensive ZIP Codes

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To figure out which upscale area is the crme de la crme of the entire United States, Business Insider used Property Shark data to compile a list of the priciest ZIP codes. Which led us to wonder: Which are the most expensive homes in these ultra-affluent areas?

We dug into homes for sale to find the most expensive listings in the 10 most expensive ZIP codes. Join us on our 10-carat countdown:

10. Los Altos, CA, 94022

Address: 26880 Elena Road
Price: $13,950,000
The details: Located in the hills above Silicon Valley, this five-bedroom modern home is "a custom built contemporary masterpiece," according to the listing. Amenities include a theater, full indoor spa, two master suites, and solar panels. And, because this is Silicon Valley we're talking about here, the home is fully equipped with the latest smart home system.

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9. Miami Beach, FL, 33109

Address: 7002 Fisher Island Drive, PH 2
Price: $35,000,000
The details: Miami's ritziest ZIP code is a barrier island just off the coast. Known as Fisher Island and once owned by the Vanderbilts, the exclusive private retreat has been home to many celebs, including Oprah. The area's most expensive listing is a 9,715-square-foot penthouse condo with seven bedrooms, 18-foot ceilings, and an ocean view.

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8. Newport Beach, CA, 92662

Address: 5 Collins Island
Price: $6,995,000
The Details: Located on Balboa Island, the size (3,600 square feet) of this French provincial home is modest compared to the others on this list. But this "small" mansion boasts 50 feet of waterfront, soaring ceilings, and a custom, stained-glass dome skylight.

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7. New York City, 10007

Address: 30 Park Place, Apt. 78B
Price: $29,500,000
The details: With a prestigious Park Place address, this luxurious penthouse is only a short distance from Grand Central, Times Square, and Rockefeller Center. This condo doesn't skimp on amenities. With a private elevator, library, media room, and river views, its price tag is justified.

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6. New York City, 10013

Address: 71 Franklin St.
Price: $65,000,000
The details: Located in Tribeca, this massive multiple-story home has some famous neighbors -- including the historic Cast Iron House next door, and Jay Z and Beyonc up the street. And, it's a fixer-upper. Architect Wayne Turett has plans to convert the space into an urban mansion, but it's being sold as-is.

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5. Palo Alto, CA, 94301

Address: 2281 Byron St.
Price: $8,398,000
The details: Due in part to the influx of tech dollars, prices in Palo Alto are soaring. However, the town's most expensive listing proves it isn't all about location or famous neighbors. This rather modest traditional home is full of details including cathedral ceilings, arched doorways, and coffered ceilings.

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4. Santa Monica, CA, 90402

Address: 609 E. Channel Road
Price: $28,500,000
The details: The town's priciest listing is known as Villa Ruchello. It's the largest compound in Santa Monica, weighing in at 3.3 acres of land and 14,000 square feet of home. The main residence has eight bedrooms, a library, and a master suite with two bathrooms.

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3. Beverly Hills, CA, 90210

Address: 9505 Lania Lane
Price: $195,000,000
The details: It's simply the most expensive home in America.

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2. Atherton, CA, 94027
Address: Private Address (!)
Price: $28,000,000
The details: As the preferred ZIP code for tech executives, Atherton is the most expensive spot in Silicon Valley, according to Business Insider. The area's current most expensive listing is this 9,000-square-foot Tudor estate. It offers six bedrooms, a library, a guest house, pool house, tennis court, and a separate outdoor enclosed kitchen space.

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1. Sagaponack, NY, 11962
Address: 90 Fairfield Pond Lane
Price: $14,900,000
The Details: With a population of just 321 peopke in 2013, this hamlet in the Hamptons is small, but it packs a big punch with massive mansions and notable residents, including Jimmy Fallon, Bill and Hillary Clinton, and Billy Joel. The area's most expensive listing is this new home with a rec room, media room, gym, sauna, steam room, wine cellar, and pool.