Foster County, North Dakota ZIP Codes

3 ZIP Codes

Zip Code
City
Population ↓
58421Carrington2,969
58443Glenfield152
58445Grace City145

Overview of ZIP Codes in Foster 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.
3
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 3 ZCTAs in Foster County, North Dakota (US Census).

Sources

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

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