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zipcodes.pro — ZIP/42021

42021

ZIP 42021 is Arlington, Kentucky, mostly in Carlisle County; area codes 270 and 364; Central time.

Type
Standard
Time zone
America/Chicago
County
Carlisle +1 more
Metro area
Paducah, KY-IL
Population
1,090
Coordinates
36.8057, -88.9936
☼ Live from 42021 — Arlington, KY

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Local time: —

Where 42021 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 42021
  • 🔢 Type 42021 into a pocket calculator and turn it upside down: IZOZh — not quite a word, sorry.
  • ➕ As a number, 42,021 = 3 × 3 × 7 × 23 × 29. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1010010000100101
  • 🏠 Its numerical neighbours: 42020 (Almo, KY, 40 mi away) and 42022 (Bandana, KY, 24 mi away).
  • 🔄 Backwards, 42021 becomes 12024 — and that is a real ZIP code: Brainard, NY, 909 miles away.
  • 👥 43 other ZIP codes are made of exactly the same digits (01224, 01242, 02124, 02142, 02241, 02421, …). The farthest-flung twin is 04221 in Canton, ME, 1,111 miles away.
  • 🧭 Farther south than 65% of all ZIP codes, and farther west than 53%.
  • 🎯560 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 42021 and you would come out at 36.81°S, 91.01°E — 1,353 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 41m of daylight. Shortest: 9h 38m.
  • 📏 At 56.7 square miles of land, 42021 is bigger than 63% of ZIP codes — room for about 43 Central Parks.
🌙 The sky over 42021 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,090This ZIP1,090
Households459This ZIP459
Housing units636This ZIP636
Median age45.0This ZIP45.0Kentucky39.1US 38.9
Median household income$56,477This ZIP$56,477Kentucky$63,726US $80,734
Median home value$94,800This ZIP$94,800Kentucky$205,600US $332,700
Bachelor's degree or higher9.8%This ZIP9.8%
Mean commute27.0 minThis ZIP27.0 min
Population density19.2 / sq miThis ZIP19.2 / sq mi

Business and tax activity

Business establishments18This ZIP18
Employees97This ZIP97
Annual payroll$3,593,000This ZIP$3,593,000
Tax returns filed580This ZIP580
Total adjusted gross income$37,244,000This ZIP$37,244,000

Land area

Land area56.69 sq miThis ZIP56.69 sq mi
Water area0.68 sq miThis ZIP0.68 sq mi

Counties 42021 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Carlisle County 90.2%
Hickman County 9.8%

Other place names in 42021

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 42021

ZIPCityDistance
42023 Bardwell, KY 4.6 mi
42070 Milburn, KY 5.2 mi
42032 Columbus, KY 7.8 mi
42031 Clinton, KY 8.3 mi
42039 Fancy Farm, KY 9.4 mi
42035 Cunningham, KY 11.2 mi
42087 Wickliffe, KY 11.6 mi
63881 Wolf Island, MO 12.8 mi
42061 Lowes, KY 13.6 mi
42060 Lovelaceville, KY 14.4 mi

Find every ZIP code within 10 miles of 42021 →

Questions about this ZIP code

Where is ZIP code 42021?

42021 is in Arlington, Kentucky, in Carlisle County, part of the Paducah, KY-IL metropolitan area. Its published point location is 36.8057, -88.9936.

What county is 42021 in?

42021 spans 2 counties: Carlisle County and Hickman County. Most of it falls in Carlisle County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 42021?

Arlington uses area codes 270 and 364, from NANPA's telephone records.

What time zone is 42021 in?

42021 uses America/Chicago.

How many people live in 42021?

About 1,090 people live in ZIP code 42021, in 459 households, at 19.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 42021?

$56,477 a year, against $63,726 across Kentucky.

What ZIP codes are near 42021?

The closest are 42023 (4.6 mi), 42070 (5.2 mi), 42032 (7.8 mi), 42031 (8.3 mi) and 42039 (9.4 mi).

Is 42021 a PO Box ZIP code?

42021 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “42021 ZIP Code — Arlington, Kentucky (Carlisle County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/42021

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/42021.json

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