U.S. postal lookup

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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State directory

Maine ZIP Codes

Complete postal directory, details, and geographic map for the State of Maine.

State ZIP Code City County Area Codes
ME 04648 Jonesboro Washington County 207
ME 04649 Jonesport Washington County 207
ME 04650 Little Deer Isle Hancock County 207
ME 04652 Lubec Washington County 207, 506
ME 04653 Bass Harbor Hancock County 207
ME 04654 Machias Washington County 207
ME 04655 Machiasport Washington County 207
ME 04657 Meddybemps Washington County 207
ME 04658 Milbridge Washington County 207
ME 04660 Mount Desert Hancock County 207
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Geographic Map of Maine

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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.