Hamlin County, South Dakota ZIP Codes

5 ZIP Codes

Zip Code
City
Population ↓
57223Castlewood1,429
57248Lake Norden1,295
57221Bryant1,158
57241Hayti936
57242Hazel320

Overview of ZIP Codes in Hamlin 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.
5
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 5 ZCTAs in Hamlin County, South Dakota (US Census).

Sources

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

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