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County ZIP codes · Kentucky · FIPS 21177

Muhlenberg County, KY ZIP Codes

Muhlenberg County, Kentucky has 16 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 13 of the residential ones lie mainly in Muhlenberg County and 3 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $48,090 in 42372 (Sacramento) to $62,222 in 42345 (Greenville) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Muhlenberg County?

42256 · Lewisburg: $59k42321 · Beech Creek: $54k42323 · Beechmont: $53k42324 · Belton: $78k42325 · Bremen: $79k42326 · Browder: $42k42330 · Central City: $50k42332 · Cleaton: –42337 · Drakesboro: $37k42339 · Dunmor: $47k42344 · Graham: $41k42345 · Greenville: $62k42367 · Powderly: $51k42372 · Sacramento: $48k42374 · South Carrollton: $42k42464 · White Plains: $46k42256423454233042464423374237242324423254234442256 · Lewisburg: $59k42321 · Beech Creek: $54k42323 · Beechmont: $53k42324 · Belton: $78k42325 · Bremen: $79k42326 · Browder: $42k42330 · Central City: $50k42332 · Cleaton: –42337 · Drakesboro: $37k42339 · Dunmor: $47k42344 · Graham: $41k42345 · Greenville: $62k42367 · Powderly: $51k42372 · Sacramento: $48k42374 · South Carrollton: $42k42464 · White Plains: $46k42256423454233042464423374237242324423254234442256 · Lewisburg: $59k42321 · Beech Creek: $54k42323 · Beechmont: $53k42324 · Belton: $78k42325 · Bremen: $79k42326 · Browder: $42k42330 · Central City: $50k42332 · Cleaton: –42337 · Drakesboro: $37k42339 · Dunmor: $47k42344 · Graham: $41k42345 · Greenville: $62k42367 · Powderly: $51k42372 · Sacramento: $48k42374 · South Carrollton: $42k42464 · White Plains: $46k422564234542330424644233742372423244232542344
The residential ZIP codes of Muhlenberg County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $48,090 and $58,794.

They carry 16 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 16 residential ZIP codes in Muhlenberg County

13 ZIP codes lie mainly in Muhlenberg County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Muhlenberg County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
42345 Greenville 11,440 74 $62k $139k 99%
42330 Central City 9,367 90 $50k $151k 100%
42325 Bremen 2,045 70 $79k $134k 100%
42337 Drakesboro 1,683 45 $37k $76k 100%
42324 Belton 1,228 39 $78k $158k 100%
42367 Powderly 949 400 $51k $100k 100%
42323 Beechmont 852 578 $53k $162k 100%
42339 Dunmor 840 23 $47k $111k 83%
42344 Graham 763 22 $41k $84k 100%
42321 Beech Creek 553 151 $54k $80k 100%
42326 Browder 283 18 $42k $163k 100%
42374 South Carrollton 124 551 $42k $123k 100%
42332 Cleaton 20 38 – – 100%

Partly in Muhlenberg County

Residential ZIP codes mainly in another county that reach at least 1% into Muhlenberg County, by their share here
In this county
42372 Sacramento 1,389 37 $48k $103k 28%
42464 White Plains 1,810 30 $46k $105k 14%
42256 Lewisburg 5,124 26 $59k $140k 2%

Download the 16 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Muhlenberg County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Muhlenberg County and in the neighboring counties
ZIPIn MuhlenbergElsewhere
4234599%
422562%Logan County 61%; Butler County 24%; Todd County 12%
4246414%Hopkins County 71%; Christian County 15%
4237228%McLean County 72%
4233983%Butler County 17%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Muhlenberg County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Muhlenberg County's ZIP codes use 3 prefixes: 422, 423 and 424.

Three-digit prefixes of Muhlenberg County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Muhlenberg County's
PrefixSectional centerHereAll codes
422 Nashville, TN (SCF 370) 1 36
423 Evansville, IN (SCF 476) 14 45
424 Evansville, IN (SCF 476) 1 32

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.