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Where 72577 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 72577 into a pocket calculator and turn it upside down: LLSZL — not quite a word, sorry.
- ➕ 72577 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 28, a total 1,520 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10001101110000001 - 🏠 Its numerical neighbours: 72576 (Salem, AR, 23 mi away) and 72578 (Sturkie, AR, 32 mi away).
- 🔄 Backwards, 72577 becomes 77527, which is not a ZIP code at all.
- 👥 11 other ZIP codes are made of exactly the same digits (25777, 27577, 52777, 57772, 72757, 75277, …). The farthest-flung twin is 57772 in Porcupine, SD, 770 miles away.
- 🧭 Farther south than 69% of all ZIP codes, and farther west than 60%.
- 🎯457 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 72577 and you would come out at 36.03°S, 88.29°E — 1,293 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 37m of daylight. Shortest: 9h 42m.
- 📏 At 48.8 square miles of land, 72577 is bigger than 59% of ZIP codes — room for about 37 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 815This ZIP815 |
|---|---|
| Households | 374This ZIP374 |
| Housing units | 441This ZIP441 |
| Median age | 30.9This ZIP30.9Arkansas38.5US 38.9 |
| Median household income | $55,959This ZIP$55,959Arkansas$60,773US $80,734 |
| Median home value | $128,200This ZIP$128,200Arkansas$188,000US $332,700 |
| Median gross rent | $566This ZIP$566Arkansas$947US $1,413 |
| Bachelor's degree or higher | 23.3%This ZIP23.3% |
| Mean commute | 22.2 minThis ZIP22.2 min |
| Population density | 16.7 / sq miThis ZIP16.7 / sq mi |
Business and tax activity
| Business establishments | 4This ZIP4 |
|---|---|
| Employees | 11This ZIP11 |
| Annual payroll | $306,000This ZIP$306,000 |
| Tax returns filed | 270This ZIP270 |
| Total adjusted gross income | $14,402,000This ZIP$14,402,000 |
Land area
| Land area | 48.77 sq miThis ZIP48.77 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Counties 72577 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Izard County | 64.8% |
| Sharp County | 35.2% |
Other place names in 72577
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 72577
| ZIP | City | Distance |
|---|---|---|
72573 | Sage, AR | 5.6 mi |
72532 | Evening Shade, AR | 7.8 mi |
72536 | Franklin, AR | 8.2 mi |
72561 | Mount Pleasant, AR | 9.0 mi |
72584 | Violet Hill, AR | 10.9 mi |
72521 | Cave City, AR | 11.2 mi |
72526 | Cushman, AR | 11.2 mi |
72512 | Horseshoe Bend, AR | 13.2 mi |
72540 | Guion, AR | 13.6 mi |
72513 | Ash Flat, AR | 14.1 mi |
Find every ZIP code within 10 miles of 72577 →
Questions about this ZIP code
Where is ZIP code 72577?
72577 is in Sidney, Arkansas, in Izard County. Its published point location is 36.0334, -91.7120.
What county is 72577 in?
72577 spans 2 counties: Izard County and Sharp County. Most of it falls in Izard 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 72577?
Sidney uses area codes 327 and 870, from NANPA's telephone records.
What time zone is 72577 in?
72577 uses America/Chicago.
How many people live in 72577?
About 815 people live in ZIP code 72577, in 374 households, at 16.7 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 72577?
$55,959 a year, against $60,773 across Arkansas.
What ZIP codes are near 72577?
The closest are 72573 (5.6 mi), 72532 (7.8 mi), 72536 (8.2 mi), 72561 (9 mi) and 72584 (10.9 mi).
Is 72577 a PO Box ZIP code?
72577 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “72577 ZIP Code — Sidney, Arkansas (Izard County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/72577
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/72577.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.