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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Guilford County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Guilford County.

County State ZIP Code City Area Codes
Guilford County NC 27413 Greensboro 336
Guilford County NC 27415 Greensboro 336
Guilford County NC 27416 Greensboro 336
Guilford County NC 27417 Greensboro 336
Guilford County NC 27419 Greensboro 336
Guilford County NC 27420 Greensboro 336
Guilford County NC 27425 Greensboro 336
Guilford County NC 27427 Greensboro 336
Guilford County NC 27429 Greensboro 336
Guilford County NC 27435 Greensboro 336
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.