ZIP Code (USA)
A ZIP Code is the United States postal code used by USPS to route and deliver mail. ZIP stands for Zone Improvement Plan. ZIP Codes can represent cities, neighbourhoods, PO boxes or individual buildings.
Formats:
- 5-digit (basic)
- ZIP+4 (adds delivery sector and segment)
Example: 90210 or 90210-1234
Where used:
- United States postal data
- Fetchify global address validation
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