Massachusetts is one of the wealthiest states in the country , and new research from the Boston Business Journal suggests that Greater Boston is the wealthiest part of the state.

The journal found that the top 10 wealthiest zip codes in Massachusetts are within 10 miles of downtown Boston – if not in it. Four are located in Boston, while three are in Cambridge.

The typical home value for the top 10 zip codes was over $880,000, it found, which is almost double the national average according to Zillow. The median home value in the wealthiest Boston zip code was $1.3 million.

The Business Journal determined its list by using its Wealth Index, which uses data from the U.S. Census Bureau and Zillow, to look at 131 of the more than 500 zip codes in Massachusetts . It weighed fac

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