42021 ZIP Code, Arlington, KY

42021 is a ZIP code in Arlington, Kentucky — mostly in Carlisle County (90% of its land), with smaller parts in Hickman County. It covers 57 square miles of land. The closest ZIP codes are 42023, 42032 and 42031. 1,090 people live here in 459 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (82%). Median household income is $56,477, below the Kentucky median of $63,726; the median age is 45.0, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents1,090
Households459
Median household income$56,477
Income per person$34,819
Median age45
Homeowners81.5%
Median home value$94,800
Median rentnot published
Bachelor's degree or higher9.8%
Average commute (minutes)27
Households with kids under 1831.4%
Moved in the past year13.8%
Below the poverty line14.0%
Broadband internet85.2%
Speak a non-English language at home1.8%

Household income

% of householdsValue
<$10K5.7%
$10–15K10.0%
$15–25K7.0%
$25–35K8.3%
$35–50K16.6%
$50–75K12.4%
$75–100K11.8%
$100–150K19.4%
$150–200K4.8%
$200K+4.1%

Age

% of all residentsValue
<1017.1%
10–195.6%
20–243.1%
25–3413.9%
35–4410.5%
45–5411.9%
55–6414.3%
65–7411.2%
75+12.5%

Tenure

% of housing unitsValue
Owned, with mortgage18.4%
Owned outright40.4%
Rented13.4%
Vacant27.8%

Type of building

% of housing unitsValue
Detached house75.0%
Townhome0.0%
2–4 units1.6%
5–19 units1.9%
20+ units1.9%
Mobile / other19.7%

Businesses in 42021

18 business establishments with 97 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

See every USPS carrier route in 42021 with residential and business mailbox counts on the route map. Open the EDDM route map.

Nearby ZIP codes

Areas that include 42021

Mail every home in 42021

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 42021, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 42021 in?
42021 is a Arlington, KY mailing address. None of its land lies inside a Census-defined city or community.
What county is 42021 in?
42021 is mostly in Carlisle County (90% of its land), with smaller parts in Hickman County.
What is the population of 42021?
About 1,090 people (±215), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,328.
What is the median household income in 42021?
$56,477 (±$17,109), compared with $63,726 for Kentucky as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 42021?
EDDM2GO's stored route library does not include 42021 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
What ZIP codes are near 42021?
The closest, measured center to center: 42023 (4.6 mi, Bardwell), 42032 (7.8 mi, Columbus), 42031 (8.3 mi, Clinton), 42039 (9.4 mi, Fancy Farm), 42035 (11.2 mi, Cunningham) and 42087 (11.6 mi, Wickliffe).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.