| Locality | Post Code |
|---|---|
| Merrifield, Fairfax | 22081, 22116 |
| Mosby, Fairfax | 22042 |
| Mount Vernon, Fairfax | 22121 |
| Newington, Fairfax | 22122 |
| North Springfield, Fairfax | 22151 |
| Northern Virginia, Fairfax | 22081 |
| Oak Hill, Fairfax | 20171 |
| Oakton, Fairfax | 22124 |
| Pimmit, Fairfax | 22043 |
| Reston, Fairfax | 20190, 20191, 20194 |
| Seven Corners, Fairfax | 22044 |
| Springfield, Fairfax | 22150, 22151, 22152, 22153, 22159, … |
| Sully Station, Fairfax | 20120 |
| Tysons, Fairfax | 22102, 22182 |
| Tysons Corner, Fairfax | 22102, 22182 |
| Vienna, Fairfax | 22180, 22181, 22182, 22185 |
| West McLean, Fairfax | 22102 |
| West Springfield, Fairfax | 22152 |