which is the fourth wealthiest ZIP code ... [+] in Washington, D.C. When you’re the capital of the United States, the country with the largest economy still in the world, then it is somewhat ...

Washington ZIP codes are home to some of the priciest real estate and richest residents in the country — with Medina's 98039 at the top. Why it matters: Disparities in income and housing prices ...

A bipartisan group of senators is questioning whether airlines are charging passengers more for tickets based on their zip codes.

Year-over-year growth was 2.4%. Incomes in ZIP code 98112 are among the highest in Washington state: The median household income is $153,204, while the mean income is $256,059. The second most ...

Customers in zip codes 20019 and 20020 pay the stiff Prime membership fee for delivery service that ordinarily takes 1 to 2 days. But for the past two years, most of their Amazon Prime packages ...