DeKalb County, Tennessee ZIP Codes

4 ZIP Codes

Zip Code
City
Population ↓
37166Smithville15,731
37012Alexandria2,118
37095Liberty1,697
37059Dowelltown1,590

Overview of ZIP Codes in DeKalb 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.
4
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 4 ZCTAs in DeKalb County, Tennessee (US Census).

Sources

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

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