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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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Anne Arundel County ZIP Codes

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

County State ZIP Code City Area Codes
Anne Arundel County MD 20778 West River 227, 240, 301, 410, 443, 667
Anne Arundel County MD 20779 Tracys Landing 410, 443, 667
Anne Arundel County MD 21012 Arnold 410, 443, 667
Anne Arundel County MD 21032 Crownsville 410, 443, 667
Anne Arundel County MD 21035 Davidsonville 227, 240, 301, 410, 443, 667
Anne Arundel County MD 21037 Edgewater 410, 443, 667
Anne Arundel County MD 21054 Gambrills 227, 240, 301, 410, 443, 667
Anne Arundel County MD 21056 Gibson Island 410, 443, 667
Anne Arundel County MD 21060 Glen Burnie 410, 443, 667
Anne Arundel County MD 21061 Glen Burnie 410, 443, 667
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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.