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Where 72440 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 72440 into a pocket calculator and turn it upside down: OhhZL — not quite a word, sorry.
- ➕ As a number, 72,440 = 2 × 2 × 2 × 5 × 1811. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10001101011111000 - 🏠 Its numerical neighbours: 72438 (Leachville, AR, 58 mi away) and 72441 (Mc Dougal, AR, 58 mi away).
- 🔄 Backwards, 72440 becomes 04427 — and that is a real ZIP code: Corinth, ME, 1,318 miles away.
- 👥 32 other ZIP codes are made of exactly the same digits (02447, 02474, 02744, 04274, 04427, 04472, …). The farthest-flung twin is 04742 in Fort Fairfield, ME, 1,416 miles away.
- 🧭 Farther south than 69% of all ZIP codes, and farther west than 59%.
- 🎯479 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 72440 and you would come out at 35.99°S, 88.74°E — 1,311 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 5.7 square miles of land, 72440 is bigger than 20% of ZIP codes — room for about 4.3 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 269This ZIP269 |
|---|---|
| Households | 136This ZIP136 |
| Housing units | 157This ZIP157 |
| Median age | 48.4This ZIP48.4Arkansas38.5US 38.9 |
| Median household income | $48,056This ZIP$48,056Arkansas$60,773US $80,734 |
| Median home value | $95,000This ZIP$95,000Arkansas$188,000US $332,700 |
| Median gross rent | $691This ZIP$691Arkansas$947US $1,413 |
| Bachelor's degree or higher | 10.7%This ZIP10.7% |
| Mean commute | 34.1 minThis ZIP34.1 min |
| Population density | 47.1 / sq miThis ZIP47.1 / sq mi |
Business and tax activity
| Business establishments | 6This ZIP6 |
|---|---|
| Employees | 44This ZIP44 |
| Annual payroll | $1,855,000This ZIP$1,855,000 |
| Tax returns filed | 120This ZIP120 |
| Total adjusted gross income | $6,533,000This ZIP$6,533,000 |
Land area
| Land area | 5.72 sq miThis ZIP5.72 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 72440
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 72440
| ZIP | City | Distance |
|---|---|---|
72469 | Strawberry, AR | 3.1 mi |
72466 | Smithville, AR | 5.0 mi |
72572 | Saffell, AR | 6.7 mi |
72458 | Powhatan, AR | 8.0 mi |
72410 | Alicia, AR | 9.8 mi |
72415 | Black Rock, AR | 10.5 mi |
72524 | Cord, AR | 10.8 mi |
72569 | Poughkeepsie, AR | 12.4 mi |
72457 | Portia, AR | 12.7 mi |
72433 | Hoxie, AR | 12.9 mi |
Find every ZIP code within 10 miles of 72440 →
Questions about this ZIP code
Where is ZIP code 72440?
72440 is in Lynn, Arkansas, in Lawrence County. Its published point location is 35.9924, -91.2647.
What county is 72440 in?
72440 lies in Lawrence County.
What area code is 72440?
Lynn uses area code 870, from NANPA's telephone records.
What time zone is 72440 in?
72440 uses America/Chicago.
How many people live in 72440?
About 269 people live in ZIP code 72440, in 136 households, at 47.1 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 72440?
$48,056 a year, against $60,773 across Arkansas.
What ZIP codes are near 72440?
The closest are 72469 (3.1 mi), 72466 (5 mi), 72572 (6.7 mi), 72458 (8 mi) and 72410 (9.8 mi).
Is 72440 a PO Box ZIP code?
72440 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “72440 ZIP Code — Lynn, Arkansas (Lawrence County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/72440
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/72440.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.