ZIP Codes of Mcnairy County, TN

Population & People
Population & People
Total Population
29,144
Household Income
Household Income
Median Income
$55,632
Housing
Housing
Total Housing Units
13,798
Business & Economy
Business & Economy
Total Businesses
456
Employment
Employment
Employment Rate
49.29%
Education
Education
Bachelor's Degree+
13.21%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 10 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:10 ZIP Codes (9 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:731
Timezone:Central (GMT -06:00)
Local Time:2:13:48 PM
Population:29,144 [See All]
FIPS:47109
Land Area:574 sq mi
Water Area:1 sq mi
Coordinates:35.1783, -88.5141
Quick Link:
https://www.zip-codes.com/county/tn-mcnairy.asp
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Tennessee's #53 most populous county
29,144 residents across 10 ZIPs — #53 of 95 Tennessee counties.

Standout ZIPs in this County


Most Populous
Selmer · 8,475 people
29.1% of county total
Highest Income
Guys · $68,646 median
1.2× county average
Largest Land Area
Selmer · 111.2 sq mi
Spans the most ground
Fastest Growth
Michie · 27.2% (10-yr)
2,765 → 3,516 residents
Most Educated
Selmer · 16.6% bachelor's+
1,042 of 6,288 adults 25+

Things worth knowing about Mcnairy County


29,144 residents live across 10 ZIPs covering 574 sq mi, served by 10 distinct USPS-recognized cities.

Population moved from 28,789 to 29,144 from 2014 to 2024 — a +1.2% change. 6 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 38339 (Guys, $68,646 median) and poorest ZIP 38379 (Stantonville, $41,136) are 8.8 miles apart — a 1.7× income gap across local geography.

Median home values vary 2.0× across this county — from $84,200 in 38359 (Milledgeville) to $170,800 in 38379 (Stantonville).

Density varies across the county — from 25 people/sq mi in 38339 (Guys) to 76 in 38375 (Selmer).

Educational attainment ranges from 4.1% bachelor's+ in 38359 (Milledgeville) to 21.5% in 38339 (Guys) — the breadth of educational profiles across the area.

Within Tennessee, this is the #53 most populous of 95 counties and ranks #60 for median household income .

Weighted by population, the typical household earns about $53,616 across the county — reflecting what a typical resident sees, not a simple ZIP average.

13.2% of adults age 25+ hold a bachelor's degree or higher (2,699 of 20,429 reporting).

9 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Mcnairy County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
574
square miles
Avg density
50.7
people per sq mi
Population
29,144
across 10 ZIPs
Selmer
111.2 sq mi
8,475 residents
Bethel Springs
107.1 sq mi
3,631 residents
Adamsville
102.7 sq mi
6,556 residents

All ZIP Codes in Mcnairy County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
38375SelmerStandard8,475$53,597111.2-13.0%
38310AdamsvilleStandard6,556$50,232102.710.4%
38315Bethel SpringsStandard3,631$50,089107.15.0%
38357MichieStandard3,516$56,22466.827.2%
38367RamerStandard2,541$58,57176.6-9.4%
38334FingerStandard2,004$66,56349.75.9%
38379StantonvilleStandard1,611$41,13634.122.4%
38339GuysStandard503$68,64619.8-14.0%
38359MilledgevilleStandard3076.47.7%
38393ChewallaPO Box0.0

Adjacent & Nearby Counties