Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/TN/COUNTY/RHEA

Rhea County, TN ZIP codes

Rhea County, TN has 4 ZIP codes, in 4 towns: 37321, 37381, 37332 and 37337.

The county seat is Dayton.

ZIP codes
4
Towns
4
County seat
Dayton
County FIPS
47143
Population
33,992
Median household income
$55,033
Land area
315 sq mi

Rhea County ZIP codes by town

Dayton (county seat)
37321

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Rhea County ZIP codes

The ZIP codes of Rhea County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Rhea County in numbers

About 33,992 people live in Rhea County, in 13,475 households, the 45th most populous of Tennessee's 95 counties. The median household income is $55,033 a year, 21% below the Tennessee median of $69,595 (US: $80,734). The median owner-occupied home is valued at $206,000 (28% below the Tennessee median), and median gross rent is $839 a month. The median age is 42.0; 18.6% of adults 25 and over hold a bachelor's degree or higher (31.1% across Tennessee); the average commute takes 30 minutes.

Population33,992Rhea33,992
Households13,475Rhea13,475
Median age42.0Rhea42.0Tennessee38.9US 38.9
Median household income$55,033Rhea$55,033Tennessee$69,595US $80,734
Median home value$206,000Rhea$206,000Tennessee$286,700US $332,700
Median gross rent$839Rhea$839Tennessee$1,189US $1,413
Bachelor's degree or higher18.6%Rhea18.6%Tennessee31.1%US 35.7%
Mean commute29.5 minRhea29.5 minTennessee25.7 minUS 26.4 min
Population density108 / sq miRhea108 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Rhea County

Largest towns in Rhea County
TownZIP codesPopulation
Dayton 1 7,625
Spring City 1 2,358
Evensville 1 1,724
Grandview 1 1,241

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Rhea County.

Not sure you are in Rhea County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Rhea County, with figures

ZIP codes in Rhea County
ZIP City Type Population Median income Median home
37321 Dayton , TN Standard 21,084 $54,684 $192,700
37332 Evensville , TN Standard 1,724 $59,479 $188,000
37337 Grandview , TN Standard 1,241 $48,359 $184,900
37381 Spring City , TN Standard 10,711 $56,869 $230,100

Cite this page

zipcodes.pro. “Rhea County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/tn/county/rhea

Underlying data is public domain or openly licensed — sources, vintages and licences.