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Where 72540 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.
- 🔢 Type 72540 into a pocket calculator and turn it upside down: OhSZL — not quite a word, sorry.
- ➕ As a number, 72,540 = 2 × 2 × 3 × 3 × 5 × 13 × 31. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10001101101011100 - 🏠 Its numerical neighbours: 72539 (Glencoe, AR, 30 mi away) and 72542 (Hardy, AR, 36 mi away).
- 🔄 Backwards, 72540 becomes 04527, which is not a ZIP code at all.
- 👥 58 other ZIP codes are made of exactly the same digits (02457, 02475, 02574, 02745, 04257, 04275, …). The farthest-flung twin is 04572 in Waldoboro, ME, 1,314 miles away.
- 🧭 Farther south than 70% of all ZIP codes, and farther west than 61%.
- 🎯453 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 72540 and you would come out at 35.92°S, 88.09°E — 1,292 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 36m of daylight. Shortest: 9h 43m.
- 📏 At 12.5 square miles of land, 72540 is bigger than 30% of ZIP codes — room for about 9.5 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 99This ZIP99 |
|---|---|
| Households | 47This ZIP47 |
| Housing units | 60This ZIP60 |
| Median age | 72.6This ZIP72.6Arkansas38.5US 38.9 |
| Median household income | $38,603This ZIP$38,603Arkansas$60,773US $80,734 |
| Bachelor's degree or higher | 11.4%This ZIP11.4% |
| Population density | 7.9 / sq miThis ZIP7.9 / sq mi |
Business and tax activity
| Business establishments | 3This ZIP3 |
|---|---|
| Employees | 83This ZIP83 |
| Annual payroll | $5,889,000This ZIP$5,889,000 |
Land area
| Land area | 12.46 sq miThis ZIP12.46 sq mi |
|---|---|
| Water area | 0.35 sq miThis ZIP0.35 sq mi |
Other place names in 72540
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 72540
| ZIP | City | Distance |
|---|---|---|
72561 | Mount Pleasant, AR | 5.5 mi |
72567 | Pleasant Grove, AR | 7.1 mi |
72556 | Melbourne, AR | 7.3 mi |
72526 | Cushman, AR | 8.6 mi |
72555 | Marcella, AR | 10.6 mi |
72560 | Mountain View, AR | 10.9 mi |
72657 | Timbo, AR | 12.1 mi |
72573 | Sage, AR | 12.5 mi |
72577 | Sidney, AR | 13.6 mi |
72517 | Brockwell, AR | 15.9 mi |
Find every ZIP code within 10 miles of 72540 →
Questions about this ZIP code
Where is ZIP code 72540?
72540 is in Guion, Arkansas, in Izard County. Its published point location is 35.9192, -91.9102.
What county is 72540 in?
72540 lies in Izard County.
What area code is 72540?
Guion uses area code 870, from NANPA's telephone records.
What time zone is 72540 in?
72540 uses America/Chicago.
How many people live in 72540?
About 99 people live in ZIP code 72540, in 47 households, at 7.9 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 72540?
$38,603 a year, against $60,773 across Arkansas.
What ZIP codes are near 72540?
The closest are 72561 (5.5 mi), 72567 (7.1 mi), 72556 (7.3 mi), 72526 (8.6 mi) and 72555 (10.6 mi).
Is 72540 a PO Box ZIP code?
72540 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “72540 ZIP Code — Guion, Arkansas (Izard County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/72540
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/72540.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.