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State's richest zip codes are all in East King County, according to home value study | Mercer Island Reporter
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The wealthiest ZIP codes in the US revealed with 3 of the top 5 in New York City | Daily Mail Online
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Massachusetts has 9 richest ZIP codes in the US, with Weston ranked top in the Commonwealth and # 11 in the country - Boston Real Estate Times
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America's 100 Most Expensive Zip Codes: Boston Back Bay, Weston, Newton and a Few More Make the List - Boston Real Estate Times
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