united states postal service zip codes by city

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- What is a postal code? Here's what the five-digit number means.
  USA TODAY via Yahoo Canada News· 2 years ago
  Nowadays, people don't send letters to one another when they want to catch up. You may get holiday...
- What Is a Postal Code? A Brief History of Zip Codes
  HowStuffWorks via Yahoo News· 6 months ago
  You use it all the time, but what is a postal code, really? In short, a zip code expedites mail delivery and helps prevent fraudulent activity on credit...
- Richest and Poorest ZIP Codes in America
  GOBankingRates via Yahoo Finance Canada· 3 months ago
  The old adage about real estate is that the three most important things are location, location, location. And, according to a study from GOBankingRates,...