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.

42,735 verified records

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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	04352	Mount Vernon	Kennebec County	`207`
ME	04353	Whitefield	Lincoln County	`207`
ME	04354	Palermo	Waldo County	`207`
ME	04355	Readfield	Kennebec County	`207`
ME	04357	Richmond	Sagadahoc County	`207`
ME	04358	South China	Kennebec County	`207`
ME	04359	South Gardiner	Kennebec County	`207`
ME	04360	Vienna	Kennebec County	`207`
ME	04363	Windsor	Kennebec County	`207`
ME	04364	Winthrop	Kennebec County	`207`

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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.