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 — CITY/TN/LOUDON

Loudon ZIP code, Tennessee

The ZIP code for Loudon, TN is 37774, and its area code is 865.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
6,432
Area code
865

Mail addressed to Loudon uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Loudon in numbers

About 6,432 people live in Loudon, in 2,451 households. The median household income is $53,650 a year, 23% below the Tennessee median of $69,595 (US: $80,734). The median owner-occupied home is valued at $244,200 (15% below the Tennessee median), and median gross rent is $879 a month. The median age is 36.9; 15.8% of adults 25 and over hold a bachelor's degree or higher (31.1% across Tennessee); the average commute takes 20 minutes.

Population6,432Loudon6,432
Households2,451Loudon2,451
Median age36.9Loudon36.9Tennessee38.9US 38.9
Median household income$53,650Loudon$53,650Tennessee$69,595US $80,734
Median home value$244,200Loudon$244,200Tennessee$286,700US $332,700
Median gross rent$879Loudon$879Tennessee$1,189US $1,413
Bachelor's degree or higher15.8%Loudon15.8%Tennessee31.1%US 35.7%
Mean commute19.6 minLoudon19.6 minTennessee25.7 minUS 26.4 min
Population density509 / sq miLoudon509 / sq mi

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

ZIP codes addressed as Loudon

ZIP codes with the USPS city name Loudon
ZIP City Type Population Median income Median home
37774 Loudon , TN Standard 21,784 $87,718 $365,100

Other ZIP codes overlapping Loudon

These ZIP codes cover part of Loudon but are addressed as somewhere else.

ZIP codes overlapping Loudon
ZIP City Type Population Median income Median home
37771 Lenoir City , TN Standard 18,042 $66,938 $279,600

Map of Loudon ZIP codes

37774

The ZIP codes of Loudon, TN, 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.

Towns near Loudon

The nearest larger towns are Tellico Village (7,414 people, 6.2 mi), Lenoir City (11,110 people, 7.0 mi) and Sweetwater (6,532 people, 11 mi).

Towns near Loudon
TownPopulationDistance
Tellico Village 7,414 6.2 mi
Lenoir City 11,110 7.0 mi
Sweetwater 6,532 11.2 mi
Kingston 6,224 12.3 mi
Farragut 24,634 14.0 mi
Madisonville 5,241 14.8 mi
Oak Ridge 32,693 16.3 mi
Harriman 6,090 17.4 mi
Louisville 4,383 18.3 mi
Rockwood 5,566 19.8 mi
Coalfield 2,754 20.2 mi
Oliver Springs 3,281 21.0 mi
Maryville 32,392 21.4 mi
Karns 4,115 21.8 mi

More nearby: every ZIP code in Loudon County · Tennessee ZIP codes

Cite this page

zipcodes.pro. “Loudon, TN ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/tn/loudon

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