ZIP Codes of Leake County, MS

Population & People
Population & People
Total Population
21,912
Household Income
Household Income
Median Income
$51,351
Housing
Housing
Total Housing Units
9,791
Business & Economy
Business & Economy
Total Businesses
333
Employment
Employment
Employment Rate
48.88%
Education
Education
Bachelor's Degree+
14.77%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:5 ZIP Codes (3 Standard, 2 PO Box, 0 Unique) [See All]
Area Codes:601 / 769
Timezone:Central (GMT -06:00)
Local Time:11:54:08 PM
Population:21,912 [See All]
FIPS:28079
Land Area:685 sq mi
Water Area:3 sq mi
Coordinates:32.7012, -89.5278
Quick Link:
https://www.zip-codes.com/county/ms-leake.asp
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Notable population decline
Lost 11.4% of residents since 2014.

Standout ZIPs in this County


Most Populous
Carthage · 14,986 people
68.4% of county total
Highest Income
Lena · $56,422 median
1.1× county average
Largest Land Area
Carthage · 435.0 sq mi
Spans the most ground
Fastest Growth
Walnut Grove · -8.6% (10-yr)
4,345 → 3,971 residents
Most Educated
Carthage · 16.1% bachelor's+
1,650 of 10,260 adults 25+

Things worth knowing about Leake County


21,912 residents live across 5 ZIPs covering 685 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 24,722 to 21,912 from 2014 to 2024 — a -11.4% change. 0 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 39094 (Lena, $56,422 median) and poorest ZIP 39051 (Carthage, $48,547) are 18.8 miles apart — a 1.2× income gap across local geography.

Median home values vary 1.2× across this county — from $97,000 in 39094 (Lena) to $119,400 in 39051 (Carthage).

Density varies across the county — from 17 people/sq mi in 39094 (Lena) to 50 in 39189 (Walnut Grove).

Educational attainment ranges from 10.8% bachelor's+ in 39094 (Lena) to 16.1% in 39051 (Carthage) — the breadth of educational profiles across the area.

Within Mississippi, this is the #42 most populous of 82 counties and ranks #44 for median household income .

Weighted by population, the typical household earns about $49,706 across the county — reflecting what a typical resident sees, not a simple ZIP average.

14.8% of adults age 25+ hold a bachelor's degree or higher (2,194 of 14,852 reporting).

3 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Leake 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
685
square miles
Avg density
32.0
people per sq mi
Population
21,912
across 5 ZIPs
Carthage
435.0 sq mi
14,986 residents
Lena
170.1 sq mi
2,955 residents
Walnut Grove
80.1 sq mi
3,971 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Carthage

Population decline

Leake County lost 11.4% of residents between 2014 and 2024. ZIPs that shed the largest share:

Lena
-17.4%
3,578 → 2,955 residents
Carthage
-10.8%
16,799 → 14,986 residents

All ZIP Codes in Leake County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
39051CarthageStandard14,986$48,547435.0-10.8%
39189Walnut GroveStandard3,971$49,08380.1-8.6%
39094LenaStandard2,955$56,422170.1-17.4%
39109MaddenPO Box0.0
39171ThomastownPO Box0.0

Adjacent & Nearby Counties