There are 17 zip codes in Loudoun County, Virginia. The most populated is 20147, located in Ashburn. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 20147 | 66,917 | Ashburn |
| 20148 | 62,554 | Ashburn |
| 20176 | 50,640 | Leesburg |
| 20164 | 42,310 | Sterling |
| 20152 | 35,538 | Chantilly |
| 20165 | 34,222 | Sterling |
| 20105 | 33,967 | Aldie |
| 20175 | 33,189 | Leesburg |
| 20132 | 19,114 | Purcellville |
| 20166 | 13,479 | Sterling |
| 20141 | 8,425 | Round Hill |
| 20180 | 7,571 | Lovettsville |
| 20158 | 4,886 | Hamilton |
| 20117 | 2,997 | Middleburg |
| 20197 | 2,359 | Waterford |
| 20129 | 533 | Paeonian Springs |
| 20184 | 442 | Upperville |