ZIP Code 20129 is located in the county of Loudoun in the state of Virginia. 20129 ZIP Code is spread between the coordinates of +39.1548970 Latitude and -77.60381776 Longitude. 20129 ZIP Code is part of the 703 area code. There are 0 postal offices in zip code 20129.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 20129. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.