why do we need to use city and state in our addresses if ZIP codes are already linked to the city and state?

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why do we need to use city and state in our addresses if ZIP codes are already linked to the city and state?

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Anonymous 0 Comments

It’s a backup. In case the zip code is unreadable for some reason (smudge, bad handwriting, ripped slightly).

It’s possible for a letter to get to its destination with just the zip+4 (which is only 10 or so houses) and a last name. Though it’s a little extra work for the mail carrier.

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