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 ...

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

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 ...