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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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Garrett County ZIP Codes

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

County State ZIP Code City Area Codes
Garrett County MD 21520 Accident 227, 240, 301
Garrett County MD 21522 Bittinger 301
Garrett County MD 21523 Bloomington 227, 240, 301, 304, 681
Garrett County MD 21531 Friendsville 227, 240, 301, 304, 582, 681, 724, 814, 878
Garrett County MD 21536 Grantsville 227, 240, 301, 582, 814
Garrett County MD 21538 Kitzmiller 227, 240, 301, 304, 681
Garrett County MD 21541 Mc Henry 227, 240, 301
Garrett County MD 21550 Oakland 227, 240, 301, 304, 681
Garrett County MD 21561 Swanton 227, 240, 301, 304, 681

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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.