Douglas Township (Shelby County) Iowa ZIP Codes by Average Adjusted Gross Income - Map and List

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Map of Douglas Township (Shelby County) Iowa Average Adjusted Gross Income by ZIP Code

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List of ZIP Codes in Douglas Township (Shelby County) With Average Adjusted Income - 2021

ZIP CodeZIP Code City/TownZIP TypeAverage Adjusted Income(2021)
ZIP Code 51446
IrwinStandard$183,570
ZIP Code 51527
DefianceStandard$170,130
ZIP Code 51537
HarlanStandard$533,980
Source: US Internal Revenue Service

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