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U.S. ZIP Codes Database 2026

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Allegany County ZIP Codes

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

County State ZIP Code City Area Codes
Allegany County MD 21532 Frostburg 227, 240, 301, 582, 814
Allegany County MD 21539 Lonaconing 227, 240, 301
Allegany County MD 21540 Luke 227, 240, 301, 304, 681
Allegany County MD 21542 Midland 227, 240, 301
Allegany County MD 21543 Midlothian 227, 240, 301
Allegany County MD 21545 Mount Savage 227, 240, 301, 582, 814
Allegany County MD 21555 Oldtown 227, 240, 301, 304, 681
Allegany County MD 21556 Pinto 240
Allegany County MD 21557 Rawlings 227, 240, 301, 304, 681
Allegany County MD 21560 Spring Gap 227, 240, 301
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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.