Washington, DC

ZIP code 20509 is designated for specific government agencies in Washington, D.C. Some important landmarks located in this area include the White House, the Eisenhower Executive Office Building, and the Treasury Department. This ZIP code encompasses a small area within the city that is home to key government buildings and offices.

ZIP code 20509

Washington, DC

United States

US > DC > District of Columbia County > 20509

Daylight Saving: Yes
Time Zone: Eastern
Area Code: 202
This ZIP code is type "Unique" (applies to a single address, usually a single large building or complex).

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