42021 ZIP Code — Arlington, KY

Carlisle County, Kentucky

ZIP code 42021 is located in Arlington, Kentucky, within Carlisle County. It covers approximately 56.68 square miles and serves a population of 1,326 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 270/364.

About ZIP code 42021

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $87,800. Owner-occupancy sits near the national average at 75%.

Median household income is $38,750. 41% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 29 minutes is near the national average.

College attainment at 8% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (28%) compared to national benchmarks.

Overall, ZIP code 42021 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.

1,326

population

56.68

sq mi land

Standard

ZIP type

Central (CT)

timezone

42021 ZIP code map

Cities in ZIP code 42021

Below are the cities the US Postal Service accepts for ZIP code 42021. Using any city not on this list may result in mail delivery delays.

City	Status
Arlington	Preferred

Nearby ZIP codes

42023 Bardwell (6 mi) 42039 Fancy Farm (7.4 mi) 42032 Columbus (7.7 mi) 42031 Clinton (7.7 mi) 42035 Cunningham (9 mi) 42087 Wickliffe (12.7 mi) 42069 Melber (14.2 mi) 42041 Fulton (16.6 mi) 42085 Water Valley (17.2 mi) 42088 Wingo (17.8 mi) 42066 Mayfield (18.1 mi) 42051 Hickory (18.1 mi)

Demographics updated 05/2026

Population
Total population	1,326
Population density	23 / sq mi
State FIPS	21
County FIPS	039

Geography
Land area	56.68 sq mi
Water area	0.69 sq mi
Latitude	36.7906
Longitude	-88.9608
Timezone	Central (CT)
Area code	270/364

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	64.9%	58.6%	47.9%
$50k – $100k	25.9%	25.8%	30.3%
$100k – $200k	4.2%	10.5%	17.6%
Over $200k	5.0%	5.0%	4.2%

Demographics & statistics

1,326

Population

People per sq mi

44.2

Median age

$38,750

Median household income

$22,674

Per capita income

$87,800

Median home value

$782

Median monthly rent

74.7%

Home ownership

13.7%

Poverty rate

4.6%

Unemployment

550

Housing units

7.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	353	26.6%
18 and over	973	73.4%
65 and over	253	19.1%
Median age	44.2 years

Race & ethnicity

White 90.6%

Two or more races 4.1%

Hispanic or Latino 2.3%

Black or African American 1.8%

Native Hawaiian / Pacific Islander 0.5%

Asian 0.4%

Other race 0.2%

Group	Count	%
White	1,230	90.6%
Two or more races	56	4.1%
Hispanic or Latino	31	2.3%
Black or African American	25	1.8%
Native Hawaiian / Pacific Islander	7	0.5%
Asian	5	0.4%
Other race	3	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	64.9%	58.6%	47.9%
$50k – $100k	25.9%	25.8%	30.3%
$100k – $200k	4.2%	10.5%	17.6%
Over $200k	5.0%	5.0%	4.2%

Under $10k 6.2%

$10k–$15k 4.8%

$15k–$25k 18.5%

$25k–$35k 14.9%

$35k–$50k 13.5%

$50k–$75k 13.9%

$75k–$100k 10.9%

$100k–$150k 13.7%

$150k–$200k 2.8%

$200k+ 0.7%

Range	% of households
Under $10k	6.2%
$10k–$15k	4.8%
$15k–$25k	18.5%
$25k–$35k	14.9%
$35k–$50k	13.5%
$50k–$75k	13.9%
$75k–$100k	10.9%
$100k–$150k	13.7%
$150k–$200k	2.8%
$200k+	0.7%
Median income	$38,750

Housing

Home values

Under $50k 24.8%

$50k–$100k 36.2%

$100k–$150k 15.0%

$150k–$200k 7.6%

$200k–$300k 5.2%

$300k–$500k 6.4%

$500k–$1M 4.3%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$87,800
Median rent / month	$782
Owner occupied	74.7%
Renter occupied	25.3%
Vacant	18.8%
Single-family detached	73.8%
Large apartment buildings	1.3%
Mobile homes	21.1%
Median rooms	5.2
Avg household size (owned)	2.33

Year built

Era	%
2020 or later	0.0%
2010–2019	7.9%
2000–2009	3.8%
1990–1999	22.8%
1980–1989	10.0%
1970–1979	20.4%
1960–1969	10.3%
1950–1959	11.0%
1940–1949	4.0%
1939 or earlier	9.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.9%
2 bedrooms	30.8%
3 bedrooms	51.9%
4 bedrooms	11.1%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	2.1%
1 vehicle	43.4%
2 vehicles	29.9%
3 or more	24.6%

Heating fuel

Fuel type	%
Utility gas	22.8%
Electricity	50.4%
Propane / LP gas	24.6%
Wood	2.3%

Households & families

Household type	Count	%
Married-couple family	285	50.7%
Cohabiting couple	21	3.7%
Male householder, no spouse	124	22.1%
Female householder, no spouse	132	23.5%
Households with children under 18	187	33.3%
Households with seniors (65+)	183	32.6%
Average household size	2.36

Marital status

Status	Male	Female
Never married	21.9%	19.3%
Married	58.6%	52.4%
Separated	0.0%	1.8%
Widowed	7.6%	10.3%
Divorced	11.9%	16.2%

Education

Less than 9th grade 8.3%

Some HS, no diploma 6.1%

HS graduate 49.1%

Some college, no degree 20.9%

Associate's degree 8.0%

Bachelor's degree 5.7%

Graduate / professional 1.9%

Metric	%
HS diploma or higher	85.6%
Bachelor's or higher	7.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	31	11.1%
Kindergarten	14	5.0%
Elementary school	156	55.9%
High school	42	15.1%
College / grad school	36	12.9%

Employment

Industry of employment

Manufacturing 22.9%

Education & healthcare 21.1%

Construction 12.9%

Retail trade 12.0%

Transportation & utilities 10.8%

Arts, food & hospitality 4.6%

Finance & real estate 3.2%

Wholesale trade 3.0%

Other services 3.0%

Public administration 3.0%

Agriculture & mining 2.2%

Professional & management 1.4%

Occupation

Category	%
Management, business & arts	13.9%
Service	14.9%
Sales & office	25.7%
Natural resources & construction	14.5%
Production & transportation	30.9%

Employment type

Type	%
Private sector	81.9%
Government	10.6%
Self-employed	7.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	91.7%
Carpool	4.7%
Public transit	0.0%
Walk	0.0%
Work from home	0.8%
Other means	2.8%
Avg commute (minutes)	29.3

Poverty

All people 13.7%

Under 18 years 21.2%

18 and over 10.9%

Married-couple families 6.3%

Female-led households 34.4%

Income support

Source	% of households
Social Security	40.7%
Retirement income	31.9%
Supplemental Security	5.0%
Cash public assistance	0.9%
Food stamps / SNAP	8.9%

Health indicators

Condition	%
Obesity	40.7%
High blood pressure	46.6%
High cholesterol	39.9%
Diabetes	14.7%
Heart disease	9.8%
Stroke	4.6%
Asthma	11.9%
Arthritis	36.1%
Kidney disease	4.0%
Pulmonary disease	14.0%
Cancer	7.5%

Behavior / access	%
Smoking	28.1%
Binge drinking	14.3%
No physical activity	37.3%
Less than 7 hrs sleep	38.4%
Depression	26.8%
Fair or poor health	26.2%
Poor mental health	19.1%
Poor physical health	17.5%
No health insurance	12.6%
Visited doctor (checkup)	77.4%
Visited dentist	48.2%
Cholesterol screening	89.1%
Teeth loss	24.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	92	9.5%

Disability	%
Any disability	20.0%
Under 18	2.0%
18–64 years	19.0%
65 and over	47.8%

Health insurance coverage

Type	%
Private insurance	45.5%
Public insurance	53.7%
No insurance	11.4%
Uninsured under 19	10.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,245	93.9%
Spanish	4	0.3%
Other Indo-European	0	0.0%
Asian & Pacific Islander	1	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,314	99.1%
Born in same state	1,307	98.6%
Born in different state	761	57.4%
Foreign born	7	0.5%
Naturalized citizen	12	0.9%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	303	22.9%
Italian	147	11.1%

Ancestry	Count	%
Arab	146	11%
Polish	4	0.3%

Technology access

Metric	% of households
Computer access	42.4%
Internet access	87.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 42021

What city is ZIP code 42021 in?

ZIP code 42021 is primarily assigned to Arlington, Kentucky.

What county is ZIP code 42021 in?

ZIP code 42021 falls within Carlisle County, Kentucky.

How educated is the population of ZIP code 42021?

8% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 42021 have a large retiree population?

41% of households in ZIP code 42021 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 42021?

The median home value in ZIP code 42021 is $87,800.

Does ZIP code 42021 have a large veteran population?

10% of civilians in ZIP code 42021 are veterans, above the national average of ~7%.

What timezone is ZIP code 42021 in?

ZIP code 42021 observes the CST timezone.