ZIP Codes of Muhlenberg County, KY

Population & People
Population & People
Total Population
30,147
Household Income
Household Income
Median Income
$52,991
Housing
Housing
Total Housing Units
13,290
Business & Economy
Business & Economy
Total Businesses
530
Employment
Employment
Employment Rate
48.69%
Education
Education
Bachelor's Degree+
14.87%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 13 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:13 ZIP Codes (11 Standard, 2 PO Box, 0 Unique) [See All]
Area Codes:270 / 364
Timezone:Central (GMT -06:00)
Local Time:2:12:21 PM
Population:30,147 [See All]
FIPS:21177
Land Area:461 sq mi
Water Area:12 sq mi
Coordinates:37.2308, -87.0980
Quick Link:
https://www.zip-codes.com/county/ky-muhlenberg.asp
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Wide geographic spread
ZIPs range from 155.9 sq mi down to 1.48 — a 105× sprawl ratio.
Striking education divide
Bachelor's share spans 1.4% to 32.8% — a 31-point gap.

Standout ZIPs in this County


Most Populous
Greenville · 11,440 people
37.9% of county total
Highest Income
Bremen · $78,750 median
1.5× county average
Largest Land Area
Greenville · 155.9 sq mi
Spans the most ground
Fastest Growth
Greenville · 6.1% (10-yr)
10,782 → 11,440 residents
Most Educated
Greenville · 25.3% bachelor's+
2,081 of 8,217 adults 25+

Things worth knowing about Muhlenberg County


30,147 residents live across 13 ZIPs covering 461 sq mi, served by 13 distinct USPS-recognized cities.

Population moved from 30,865 to 30,147 from 2014 to 2024 — a -2.3% change. 4 ZIPs gained residents, 9 lost.

The county's wealthiest ZIP 42325 (Bremen, $78,750 median) and poorest ZIP 42337 (Drakesboro, $36,875) are 17.8 miles apart — a 2.1× income gap across local geography.

Median home values vary 2.2× across this county — from $75,500 in 42337 (Drakesboro) to $162,500 in 42326 (Browder).

Density varies 27× across the county — from 21 people/sq mi in 42344 (Graham) to 575 in 42323 (Beechmont).

Educational attainment ranges from 1.4% bachelor's+ in 42337 (Drakesboro) to 32.8% in 42324 (Belton) — the breadth of educational profiles across the area.

Within Kentucky, this is the #35 most populous of 120 counties and ranks #77 for median household income .

Weighted by population, the typical household earns about $56,847 across the county — reflecting what a typical resident sees, not a simple ZIP average.

14.9% of adults age 25+ hold a bachelor's degree or higher (3,196 of 21,492 reporting).

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

All ZIP Codes in Muhlenberg County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
42345GreenvilleStandard11,440$62,222155.96.1%
42330Central CityStandard9,367$50,22699.1-0.5%
42325BremenStandard2,045$78,75034.2-19.1%
42337DrakesboroStandard1,683$36,87547.7-4.1%
42324BeltonStandard1,228$77,89832.3-11.3%
42367PowderlyStandard949$51,3972.953.6%
42323BeechmontStandard852$53,4381.5-6.9%
42339DunmorStandard840$46,66734.915.7%
42344GrahamStandard763$40,97236.3-43.4%
42321Beech CreekStandard553$53,7503.713.3%
42326BrowderStandard283$42,16712.2-45.8%
42374South CarrolltonPO Box124$41,5340.0-43.6%
42332CleatonPO Box200.0-88.0%

Adjacent & Nearby Counties