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U.S. ZIP Codes Database 2026

Name: Rhea County
Address: US

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Rhea County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Rhea County.

County	State	ZIP Code	City	Area Codes
Rhea County	TN	37321	Dayton	`423`
Rhea County	TN	37332	Evensville	`423`
Rhea County	TN	37337	Grandview	`423, 865, 931`
Rhea County	TN	37338	Graysville	`423`
Rhea County	TN	37381	Spring City	`423, 865, 931`

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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.