ZIP Code Tabulation Area · Kentucky

ZIP Code 42321: Muhlenberg County, KY

ZIP Code 42321 (Muhlenberg County, Kentucky) has an estimated 553 residents in 212 households. The median household income is $53,750, the median home value is $79,800 and the median gross rent is —. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Some estimates have a large margin of error. 6 figures for this ZIP (population, median age, household income, poverty rate, owner-occupied, commute) are marked with *. ACS figures come from a sample, and small areas have fewer responses, so treat these numbers as rough ranges.

Total population

553*

Margin of error ±279· estimate has a large margin of error

Median household income

$53,750*

Margin of error ±$43,084· estimate has a large margin of error

Median home value

$79,800

Margin of error ±$15,266

Median gross rent

—

Margin of error not available

Median age

37.1 yrs*

Margin of error ±18.7 yrs· estimate has a large margin of error

Mean travel time to work

35.0 min*

Margin of error ±34.6 min· estimate has a large margin of error

How ZIP 42321 compares with Kentucky and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 4232137.1 yrs*Kentucky39.1 yrsUnited States38.9 yrs

Median household income

ZIP 42321$53,750*Kentucky$63,726United States$80,734

Per capita income

ZIP 42321$27,924Kentucky$35,821United States$44,673

Poverty rate

ZIP 4232112.8%*Kentucky16.1%United States12.5%

Unemployment rate

ZIP 423215.3%Kentucky4.9%United States5.2%

Bachelor's degree or higher

ZIP 423217.1%Kentucky27.6%United States35.7%

Median home value

ZIP 42321$79,800Kentucky$205,600United States$332,700

Median gross rent

ZIP 42321—Kentucky$967/moUnited States$1,413/mo

Owner-occupied homes

ZIP 4232192.5%*Kentucky68.3%United States65.2%

Mean travel time to work

ZIP 4232135.0 min*Kentucky24.0 minUnited States26.4 min

Worked from home

ZIP 423210.0%Kentucky10.2%United States15.1%

All figures for ZIP 42321

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 42321 — ACS 2020–2024 5-year estimates
Measure	ZIP 42321	Margin of error	Kentucky	United States
Total population	553*	±279	4,534,824	334,922,499
Median age	37.1 yrs*	±18.7 yrs	39.1 yrs	38.9 yrs
Households	212	±94	1,814,469	129,227,496
Median household income	$53,750*	±$43,084	$63,726	$80,734
Per capita income	$27,924	±$7,432	$35,821	$44,673
Poverty rate	12.8%*	±14.7 pts	16.1%	12.5%
Unemployment rate	5.3%	±9.9 pts	4.9%	5.2%
Bachelor's degree or higher	7.1%	±8.1 pts	27.6%	35.7%
Median home value	$79,800	±$15,266	$205,600	$332,700
Median gross rent	—	—	$967/mo	$1,413/mo
Owner-occupied homes	92.5%*	±57.3 pts	68.3%	65.2%
Mean travel time to work	35.0 min*	±34.6 min	24.0 min	26.4 min
Worked from home	0.0%	±8.1 pts	10.2%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 42321
Group	ZIP 42321	Kentucky	United States
White alone, not Hispanic or Latino	97.1%	81.5%	57.4%
Black or African American alone, not Hispanic or Latino	2.9%	7.6%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.0%	0.1%	0.5%
Asian alone, not Hispanic or Latino	0.0%	1.6%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.1%	0.2%
Some other race alone, not Hispanic or Latino	0.0%	0.3%	0.6%
Two or more races, not Hispanic or Latino	0.0%	3.9%	4.3%
Hispanic or Latino (of any race)	0.0%	5.0%	19.3%

Where ZIP 42321 is

State: Kentucky
Main county: Muhlenberg County
Largest overlapping place: Beechmont (14% of the ZIP's land area)
Land area: 3.66 sq mi· about 151 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Muhlenberg County

42323 Beechmont, KY 42324 Muhlenberg County, KY 42325 Muhlenberg County, KY 42326 Muhlenberg County, KY 42330 Muhlenberg County, KY 42332 Cleaton, KY 42337 Muhlenberg County, KY 42339 Muhlenberg County, KY 42344 Muhlenberg County, KY 42345 Muhlenberg County, KY 42367 Powderly, KY 42374 South Carrollton, KY

See every ZIP code in Kentucky, or compare ZIP 42321 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.