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U.S. ZIP Codes Database 2026

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Carlton County ZIP Codes

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

County State ZIP Code City Area Codes
Carlton County MN 55707 Barnum 218
Carlton County MN 55718 Carlton 218, 534, 715
Carlton County MN 55720 Cloquet 218
Carlton County MN 55726 Cromwell 218
Carlton County MN 55733 Esko 218
Carlton County MN 55749 Holyoke 218, 534, 715
Carlton County MN 55757 Kettle River 218, 320
Carlton County MN 55767 Moose Lake 218
Carlton County MN 55780 Sawyer 218
Carlton County MN 55797 Wrenshall 218, 534, 715
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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.