Washington, DC

ZIP code 20456 is primarily located in Washington, D.C. This area is home to prominent landmarks such as the White House, the Dwight D. Eisenhower Executive Office Building, and the Renwick Gallery. The zip code also encompasses portions of the National Mall, which houses the Washington Monument. With its proximity to the heart of the nation's capital, ZIP code 20456 offers a central location for government offices and cultural attractions.