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 04488 Stetson Penobscot County 207
ME 04489 Stillwater Penobscot County 207
ME 04490 Topsfield Washington County 207
ME 04491 Vanceboro Washington County 207, 506
ME 04492 Waite Washington County 207
ME 04493 West Enfield Penobscot County 207
ME 04495 Winn Penobscot County 207
ME 04496 Winterport Waldo County 207
ME 04497 Wytopitlock Aroostook County 207
ME 04530 Bath Sagadahoc County 207
Page 26 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.