How do Zipcodes work?

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Tags

1. #location
2. #fourth
3. #states
4. #delivery
5. #fifth
6. #representing
7. #digits
8. #extended
9. #digit
10. #zones
11. #areas
12. #within
13. #offices
14. #precise
15. #specific
16. #number
17. #represent
18. #united
19. #additional
20. #postal
21. #hyphen