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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Maine ZIP Codes

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

State ZIP Code City County Area Codes
ME 04936 Eustis Franklin County 207, 468, 819, 873
ME 04937 Fairfield Somerset County 207
ME 04938 Farmington Franklin County 207
ME 04939 Garland Penobscot County 207
ME 04940 Farmington Falls Franklin County 207
ME 04941 Freedom Waldo County 207
ME 04942 Harmony Somerset County 207
ME 04943 Hartland Somerset County 207
ME 04944 Hinckley Somerset County 207
ME 04945 Jackman Somerset County 207, 367, 418, 468, 581, 819, 873
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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.