Yankton County, South Dakota ZIP Codes

7 ZIP Codes

Zip Code
City
Population ↓
57078Yankton20,383
57037Irene925
57031Gayville784
57046Mission Hill521
57072Volin435
57067Utica348
57040Lesterville222

Overview of ZIP Codes in Yankton County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
7
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 7 ZCTAs in Yankton County, South Dakota (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

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