Weather right now
Asking the National Weather Service…
Where 72840 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 72840 into a pocket calculator and turn it upside down: OhBZL — not quite a word, sorry.
- ➕ As a number, 72,840 = 2 × 2 × 2 × 3 × 5 × 607. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10001110010001000 - 🏠 Its numerical neighbours: 72839 (Hagarville, AR, 24 mi away) and 72841 (Harvey, AR, 42 mi away).
- 🔄 Backwards, 72840 becomes 04827, which is not a ZIP code at all.
- 👥 57 other ZIP codes are made of exactly the same digits (02478, 02748, 02874, 04287, 07428, 07842, …). The farthest-flung twin is 04287 in Bowdoin, ME, 1,383 miles away.
- 🧭 Farther south than 72% of all ZIP codes, and farther west than 65%.
- 🎯406 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 72840 and you would come out at 35.46°S, 86.38°E — 1,260 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 33m of daylight. Shortest: 9h 45m.
- 📏 At 46.8 square miles of land, 72840 is bigger than 58% of ZIP codes — room for about 36 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 2,448This ZIP2,448 |
|---|---|
| Households | 854This ZIP854 |
| Housing units | 990This ZIP990 |
| Median age | 37.7This ZIP37.7Arkansas38.5US 38.9 |
| Median household income | $49,750This ZIP$49,750Arkansas$60,773US $80,734 |
| Median home value | $93,200This ZIP$93,200Arkansas$188,000US $332,700 |
| Median gross rent | $763This ZIP$763Arkansas$947US $1,413 |
| Bachelor's degree or higher | 11.6%This ZIP11.6% |
| Mean commute | 19.7 minThis ZIP19.7 min |
| Population density | 52.3 / sq miThis ZIP52.3 / sq mi |
Business and tax activity
| Business establishments | 5This ZIP5 |
|---|---|
| Employees | 35This ZIP35 |
| Annual payroll | $1,079,000This ZIP$1,079,000 |
| Tax returns filed | 770This ZIP770 |
| Total adjusted gross income | $33,265,000This ZIP$33,265,000 |
Land area
| Land area | 46.80 sq miThis ZIP46.80 sq mi |
|---|---|
| Water area | 2.16 sq miThis ZIP2.16 sq mi |
Other place names in 72840
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 72840
| ZIP | City | Distance |
|---|---|---|
72832 | Coal Hill, AR | 3.6 mi |
72821 | Altus, AR | 5.5 mi |
72820 | Alix, AR | 7.2 mi |
72830 | Clarksville, AR | 7.2 mi |
72863 | Scranton, AR | 8.5 mi |
72865 | Subiaco, AR | 11.1 mi |
72949 | Ozark, AR | 13.0 mi |
72845 | Knoxville, AR | 14.9 mi |
72852 | Oark, AR | 15.0 mi |
72855 | Paris, AR | 15.0 mi |
Find every ZIP code within 10 miles of 72840 →
Questions about this ZIP code
Where is ZIP code 72840?
72840 is in Hartman, Arkansas, in Johnson County. Its published point location is 35.4581, -93.6154.
What county is 72840 in?
72840 lies in Johnson County.
What area code is 72840?
Hartman uses area code 479, from NANPA's telephone records.
What time zone is 72840 in?
72840 uses America/Chicago.
How many people live in 72840?
About 2,448 people live in ZIP code 72840, in 854 households, at 52.3 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 72840?
$49,750 a year, against $60,773 across Arkansas.
What ZIP codes are near 72840?
The closest are 72832 (3.6 mi), 72821 (5.5 mi), 72820 (7.2 mi), 72830 (7.2 mi) and 72863 (8.5 mi).
Is 72840 a PO Box ZIP code?
72840 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “72840 ZIP Code — Hartman, Arkansas (Johnson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/72840
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/72840.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.