ZIP Codes in Duluth, St. Louis County
List of ZIP Codes in Duluth, St. Louis County.

Duluth - 55801

Duluth - 55802

Duluth - 55803

Duluth - 55804

Duluth - 55805

Duluth - 55806

Duluth - 55807

Duluth - 55808

Duluth - 55810

Duluth - 55811

Duluth - 55812

Duluth - 55814

Duluth - 55815

Duluth - 55816