Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/72221

72221

ZIP 72221 is in Little Rock, Arkansas, in Pulaski County; area code 501; Central time. Little Rock has 25 ZIP codes in all.

Type
No street area
Time zone
America/Chicago
County
Pulaski
Coordinates
34.7519, -92.3925

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 72211, whose figures describe that area — not this ZIP code.

☼ Live from 72221 — Little Rock, AR

Weather right now

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Local time: —

Where 72221 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 72221
  • 🔢 Type 72221 into a pocket calculator and turn it upside down: IZZZL — not quite a word, sorry.
  • ➕ 72221 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10001101000011101
  • 🏠 Its numerical neighbours: 72219 (Little Rock, AR, 0 mi away) and 72222 (Little Rock, AR, 0 mi away).
  • 🔄 Backwards, 72221 becomes 12227 — and that is a real ZIP code: Albany, NY, 1,140 miles away.
  • 👥 12 other ZIP codes are made of exactly the same digits (12227, 12722, 17222, 21227, 21722, 22172, …). The farthest-flung twin is 12227 in Albany, NY, 1,140 miles away.
  • 🧭 Farther south than 75% of all ZIP codes, and farther west than 62%.
  • 🎯488 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 72221 and you would come out at 34.75°S, 87.61°E — 1,340 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 29m of daylight. Shortest: 9h 49m.
🌙 The sky over 72221 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments19This ZIP19
Employees69This ZIP69
Annual payroll$7,097,000This ZIP$7,097,000

Land area

ZIP codes near 72221

ZIPCityDistance
72124 North Little Rock, AR 0.0 mi
72190 North Little Rock, AR 0.0 mi
72215 Little Rock, AR 0.0 mi
72219 Little Rock, AR 0.0 mi
72222 Little Rock, AR 0.0 mi
72225 Little Rock, AR 0.0 mi
72295 Little Rock, AR 0.0 mi
72211 Little Rock, AR 1.5 mi
72227 Little Rock, AR 2.0 mi
72205 Little Rock, AR 2.3 mi

Find every ZIP code within 10 miles of 72221 →

Questions about this ZIP code

Where is ZIP code 72221?

72221 is in Little Rock, Arkansas, in Pulaski County, part of the Little Rock-North Little Rock-Conway, AR metropolitan area. Its published point location is 34.7519, -92.3925.

What county is 72221 in?

72221 lies in Pulaski County.

What area code is 72221?

Little Rock uses area code 501, from NANPA's telephone records.

What time zone is 72221 in?

72221 uses America/Chicago.

What ZIP codes are near 72221?

The closest are 72124 (0 mi), 72190 (0 mi), 72215 (0 mi), 72219 (0 mi) and 72222 (0 mi).

Is 72221 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “72221 ZIP Code — Little Rock, Arkansas (Pulaski County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/72221

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