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
County directory

Hancock County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Hancock County.

County State ZIP Code City Area Codes
Hancock County ME 04675 Seal Harbor 207
Hancock County ME 04676 Sedgwick 207
Hancock County ME 04677 Sorrento 207
Hancock County ME 04679 Southwest Harbor 207
Hancock County ME 04681 Stonington 207
Hancock County ME 04683 Sunset 207
Hancock County ME 04684 Surry 207
Hancock County ME 04685 Swans Island 207
Hancock County ME 04693 Winter Harbor 207
Hancock County MS 39520 Bay Saint Louis 228
Page 8 of 11

Geographic Map of Hancock County

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.