Loudon County, Tennessee ZIP Codes

5 ZIP Codes

Zip Code
City
Population ↓
37774Loudon21,784
37771Lenoir City18,042
37772Lenoir City14,646
37742Greenback7,046
37846Philadelphia4,579

Overview of ZIP Codes in Loudon 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 Loudon County, Tennessee (US Census).

Sources

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

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