1. Go to Contacts > Individuals
  2. Click on Advanced Search
  3. Expand Contacts
  4. Expand Profile
  5. Expand Address Types
  6. Expand the desired Address Type
  7. Highlight Zip/Postal Code
  8. Click Add
  9. Select the second radio button to search by zip code radius
  10. Enter the radius settings
  11. Click OK
  12. Run Query