Plain

County ZIP codes · Tennessee · FIPS 47143

Rhea County, TN ZIP Codes

Rhea County, Tennessee has 5 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Rhea County and 1 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $48,359 in 37337 (Grandview) to $56,869 in 37381 (Spring City) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Rhea County?

37321 · Dayton: $55k37332 · Evensville: $60k37337 · Grandview: $48k37338 · Graysville: $50k37381 · Spring City: $57k373813732137338373323733737321 · Dayton: $55k37332 · Evensville: $60k37337 · Grandview: $48k37338 · Graysville: $50k37381 · Spring City: $57k373813732137338373323733737321 · Dayton: $55k37332 · Evensville: $60k37337 · Grandview: $48k37338 · Graysville: $50k37381 · Spring City: $57k3738137321373383733237337
The residential ZIP codes of Rhea County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 5 postal town names: Dayton, Spring City, Graysville, Evensville, Grandview.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 5 residential ZIP codes in Rhea County

4 ZIP codes lie mainly in Rhea County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Rhea County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
37321 Dayton 21,084 185 $55k $193k 95%
37381 Spring City 10,711 79 $57k $230k 80%
37332 Evensville 1,724 25 $60k $188k 94%
37337 Grandview 1,241 21 $48k $185k 50%

Partly in Rhea County

Residential ZIP codes mainly in another county that reach at least 1% into Rhea County, by their share here
In this county
37338 Graysville 3,309 46 $50k $122k 5%

Download the 5 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Rhea County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Rhea County and in the neighboring counties
ZIPIn RheaElsewhere
3732195%Bledsoe County 5%
3738180%Bledsoe County 20%
373385%Bledsoe County 58%; Sequatchie County 20%; Hamilton County 16%
3733294%Bledsoe County 6%
3733750%Cumberland County 44%; Bledsoe County 6%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Rhea County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Rhea County starts with 373.

Three-digit prefixes of Rhea County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Rhea County's
PrefixSectional centerHereAll codes
373 Chattanooga, TN (SCF 373) 5 87

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.