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

Sibley County ZIP Codes

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

County State ZIP Code City Area Codes
Sibley County MN 55307 Arlington 320, 507
Sibley County MN 55334 Gaylord 320, 507
Sibley County MN 55335 Gibbon 320, 507
Sibley County MN 55338 Green Isle 320, 507, 952
Sibley County MN 55366 New Auburn 320, 507
Sibley County MN 55396 Winthrop 320, 507
Sibley County MN 56044 Henderson 507, 952

Geographic Map of Sibley 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.