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

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zipcodes.pro — CITY/TN/FAIRFIELD

Fairfield ZIP codes, Tennessee

No ZIP code is named for Fairfield, TN; addresses there use a neighbouring town's name. The ZIP code covering it is 37186. Its area codes are 615 and 629.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
351
Area codes
615, 629

NANPA lists no telephone rate centre for Fairfield itself, so these are the area codes of the nearest one, Westmoreland (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Fairfield in numbers

About 351 people live in Fairfield, in 107 households. The median age is 43.2; 0.0% of adults 25 and over hold a bachelor's degree or higher (31.1% across Tennessee).

Population351Fairfield351
Households107Fairfield107
Median age43.2Fairfield43.2Tennessee38.9US 38.9
Bachelor's degree or higher0.0%Fairfield0.0%Tennessee31.1%US 35.7%
Population density354 / sq miFairfield354 / sq mi

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

ZIP codes covering Fairfield

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

ZIP codes overlapping Fairfield
ZIP City Type Population Median income Median home
37186 Westmoreland , TN Standard 10,709 $59,545 $221,500

Map of Fairfield ZIP codes

37186

The ZIP codes of Fairfield, 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 Fairfield

The nearest larger towns are Westmoreland (2,845 people, 6.7 mi), Portland (13,449 people, 10 mi) and Scottsville, KY (4,427 people, 12 mi).

Towns near Fairfield
TownPopulationDistance
Westmoreland 2,845 6.7 mi
Portland 13,449 10.3 mi
Scottsville, KY 4,427 11.6 mi
Franklin, KY 10,360 13.7 mi
Gallatin 48,532 17.9 mi
Lafayette 5,727 18.6 mi
Hartsville/Trousdale County 11,957 18.8 mi
White House 14,631 21.1 mi
Shackle Island 4,404 22.7 mi
Bowling Green, KY 75,388 25.1 mi
Millersville 5,836 25.7 mi
Hendersonville 63,091 25.9 mi
Goodlettsville 17,597 28.3 mi
Greenbrier 6,971 28.4 mi

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

Cite this page

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

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