| Zip Code | Primary City | Secondary City | | 20190 | Reston | Herndon | | 20191 | Reston | Herndon | | 20192 | Herndon | Reston, Hundon, U S Geological Survey, | | 20193 | Reston | Reston, Hundon, Sallie Mae, Herndon | | 20194 | Reston | Herndon | | 20195 | Reston | Herndon | | 20196 | Reston | Reston, Hundon, Sprint, Herndon | | 20598 | Dhs | Reston, Dept Hs, Alexandria, Arlington, Fairfax, Falls Church, Herndon, Lorton, Mclean, Springfield, Sterling, Mc Lean | | 22095 | Herndon | Reston, Business Reply Mail, | | 22096 | Reston | Reston, Sprint, Herndon |
|