Washington, DC

ZIP code 20509 is located in Washington D.C. and is primarily used for PO boxes. The most important landmarks in this area include the White House, the United States Capitol building, and the National Mall. This ZIP code encompasses the heart of the nation's capital, making it a hub for government buildings and historic sites.

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).

Get latitude & longitude

Download this data for all ZIP codes



Washington	-	Preferred

Calculate distance

ZIP code 20509 is how far from:

Find nearby ZIPs

Show ZIP codes within of 20509: