Loudoun County ZIP Codes
Virginia, United States · 35 codes
Loudoun County in Virginia has 35 ZIP codes, from 20101 to 20598, serving 35 places.
ZIP codes in Loudoun
| ZIP Code | Places |
|---|---|
| 20101 | Dulles |
| 20102 | Dulles |
| 20103 | Dulles |
| 20104 | Dulles |
| 20105 | Aldie |
| 20117 | Middleburg |
| 20118 | Middleburg |
| 20129 | Paeonian Springs |
| 20131 | Philomont |
| 20132 | Purcellville |
| 20134 | Purcellville |
| 20135 | Bluemont |
| 20141 | Round Hill |
| 20142 | Round Hill |
| 20146 | Ashburn |
| 20147 | Ashburn |
| 20148 | Ashburn |
| 20149 | Ashburn |
| 20152 | Chantilly |
| 20158 | Hamilton |
| 20159 | Hamilton |
| 20160 | Lincoln |
| 20163 | Sterling |
| 20164 | Sterling |
| 20165 | Sterling |
| 20166 | Sterling |
| 20167 | Sterling |
| 20175 | Leesburg |
| 20176 | Leesburg |
| 20177 | Leesburg |
| 20178 | Leesburg |
| 20180 | Lovettsville |
| 20189 | Dulles |
| 20197 | Waterford |
| 20598 | Dhs |
Frequently asked questions
What is the ZIP code of Loudoun?
Loudoun has 35 ZIP codes, from 20101 to 20598. The table lists the places each one serves.
How many places are listed in Loudoun County?
35 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.