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Zip Code 37321 — Dayton, TN

37321 is a ZIP Code associated with Dayton, TN, located within Rhea. The postal region supports an estimated population of 21,084 residents across Data Pending housing units, with a population density of 71.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (35.502390, -85.008010)

Data MetricLocal Statistic
Postal / Zip Code37321
Primary CityDayton
State / ProvinceTN
CountyRhea
Total Population21,084
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density71.4 people/sq mi
TimezoneAmerica/New_York

How 37321 Compares

MetricZIP 37321Rhea CountyTN State Average
Population21,08434,7607,058,868
Median IncomeData PendingN/AN/A
Population Density71.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 37332Evensville6.8 mi1,724N/A
Zip 37373Sale Creek9.2 mi3,273N/A
Zip 37308Birchwood10.7 mi3,188N/A
Zip 37322Decatur10.9 mi9,101N/A
Zip 37338Graysville12.6 mi3,309N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →