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Zip Codes in Humboldt County, iowa
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Zip Code
Population
Humboldt County, IA 50548
5,808
Humboldt County, IA 50529
837
Humboldt County, IA 50558
558
Humboldt County, IA 50541
491
Humboldt County, IA 50519
426
Humboldt County, IA 50577
328
Humboldt County, IA 50591
302
Humboldt County, IA 50582
234
Humboldt County, IA 50545
205
Humboldt County, IA 50570
179
Humboldt County, IA 50520
141
Humboldt County, IA 50542
118
