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

Michigan ZIP Codes

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

State ZIP Code City County Area Codes
MI 49116 Lakeside Berrien County 269
MI 49117 New Buffalo Berrien County 219, 269
MI 49119 New Troy Berrien County 269
MI 49120 Niles Berrien County 269, 574
MI 49121 Niles Berrien County 269
MI 49125 Sawyer Berrien County 269
MI 49126 Sodus Berrien County 269
MI 49127 Stevensville Berrien County 269
MI 49128 Three Oaks Berrien County 219, 269
MI 49129 Union Pier Berrien County 269
Page 71 of 117

Geographic Map of Michigan

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.