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Where 79540 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 79540 into a pocket calculator and turn it upside down: OhSGL — not quite a word, sorry.
- ➕ As a number, 79,540 = 2 × 2 × 5 × 41 × 97. Its digits add up to 25, a total 2,242 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011011010110100 - 🏠 Its numerical neighbours: 79539 (O Brien, TX, 18 mi away) and 79541 (Ovalo, TX, 71 mi away).
- 🔄 Backwards, 79540 becomes 04597, which is not a ZIP code at all.
- 👥 47 other ZIP codes are made of exactly the same digits (04579, 04957, 04975, 05479, 07495, 07945, …). The farthest-flung twin is 09754 in APO AE, a military post office, 7,887 miles away.
- 🧭 Farther south than 84% of all ZIP codes, and farther west than 80%.
- 🎯469 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 79540 and you would come out at 33.15°S, 79.93°E — 1,225 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 21m of daylight. Shortest: 9h 57m.
- 📏 At 111.0 square miles of land, 79540 is bigger than 80% of ZIP codes — room for about 84 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 52This ZIP52 |
|---|---|
| Households | 35This ZIP35 |
| Housing units | 55This ZIP55 |
| Median age | 62.1This ZIP62.1Texas35.6US 38.9 |
| Median home value | $111,000This ZIP$111,000Texas$283,800US $332,700 |
| Bachelor's degree or higher | 42.3%This ZIP42.3% |
| Population density | 0.5 / sq miThis ZIP0.5 / sq mi |
Land area
| Land area | 110.95 sq miThis ZIP110.95 sq mi |
|---|---|
| Water area | 0.39 sq miThis ZIP0.39 sq mi |
ZIP codes near 79540
| ZIP | City | Distance |
|---|---|---|
79547 | Rule, TX | 10.1 mi |
79548 | Rule, TX | 10.7 mi |
79502 | Aspermont, TX | 11.4 mi |
79544 | Rochester, TX | 15.8 mi |
79539 | O Brien, TX | 17.9 mi |
79520 | Hamlin, TX | 19.2 mi |
79553 | Stamford, TX | 19.3 mi |
79529 | Knox City, TX | 24.1 mi |
79521 | Haskell, TX | 25.5 mi |
76388 | Weinert, TX | 27.5 mi |
Find every ZIP code within 10 miles of 79540 →
Questions about this ZIP code
Where is ZIP code 79540?
79540 is in Old Glory, Texas, in Stonewall County. Its published point location is 33.1507, -100.0711.
What county is 79540 in?
79540 lies in Stonewall County.
What area code is 79540?
Old Glory uses area code 940, from NANPA's telephone records.
What time zone is 79540 in?
79540 uses America/Chicago.
How many people live in 79540?
About 52 people live in ZIP code 79540, in 35 households, at 0.5 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 79540?
The closest are 79547 (10.1 mi), 79548 (10.7 mi), 79502 (11.4 mi), 79544 (15.8 mi) and 79539 (17.9 mi).
Is 79540 a PO Box ZIP code?
79540 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “79540 ZIP Code — Old Glory, Texas (Stonewall County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/79540
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/79540.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.