US States Zip Directory 2026

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Maine Zip Codes



Maine Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost portion of New England. It is known for its scenery—its jagged, mostly rocky coastline, its low, rolling mountains, its heavily forested interior and picturesque waterways—as well as for its seafood cuisine, especially lobsters and clams.

State Zip Code City County Area Codes
ME 03901 Berwick York County 207, 603
ME 03902 Cape Neddick York County 207
ME 03903 Eliot York County 207, 603
ME 03904 Kittery York County 207, 603
ME 03905 Kittery Point York County 207, 603
ME 03906 North Berwick York County 207
ME 03907 Ogunquit York County 207
ME 03908 South Berwick York County 207, 603
ME 03909 York York County 207
ME 03910 York Beach York County 207
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Map of Maine



ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the code in the postal address. The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the ZIP code, a hyphen, and four more digits that determine a more precise location than the ZIP code alone. The term ZIP code was originally registered as a servicemark (a type of trademark) by the U.S. Postal Service, but its registration has since expired.


ZIP codes designate only delivery points within the United States and its dependencies, as well as locations of its armed forces. There are no ZIP codes reserved for designating mail bound for foreign destinations (with the exception of U.S. military units stationed outside of the United States), and therefore, international outbound mail should not include a ZIP code in the delivery address. The last line of a foreign address must only show the name of the country of destination.