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
All states and U.S. territories
Maps and coordinates
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 04252 Lisbon Falls Androscoggin County 207
ME 04253 Livermore Androscoggin County 207
ME 04254 Livermore Falls Androscoggin County 207
ME 04255 Greenwood Oxford County 207
ME 04256 Mechanic Falls Androscoggin County 207
ME 04257 Mexico Oxford County 207
ME 04258 Minot Androscoggin County 207
ME 04259 Monmouth Kennebec County 207
ME 04260 New Gloucester Cumberland County 207
ME 04261 Newry Oxford County 207, 603
Page 14 of 49

Geographic Map of Maine

Postal context

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.