78540
ZIP 78540 is in Edinburg, Texas, in Hidalgo County; area code 956; Central time. Edinburg has 4 ZIP codes; the others are 78539, 78541 and 78542.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Hidalgo
- Metro area
- McAllen-Edinburg-Mission, TX
- Population
- 0
- Coordinates
- 26.5491, -97.9916
Weather right now
Asking the National Weather Service…
Where 78540 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 78540 into a pocket calculator and turn it upside down: OhSBL — not quite a word, sorry.
- ➕ As a number, 78,540 = 2 × 2 × 3 × 5 × 7 × 11 × 17. Its digits add up to 24, a total 2,425 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011001011001100 - 🏠 Its numerical neighbours: 78539 (Edinburg, TX, 22 mi away) and 78541 (Edinburg, TX, 19 mi away).
- 🔄 Backwards, 78540 becomes 04587, which is not a ZIP code at all.
- 👥 57 other ZIP codes are made of exactly the same digits (04578, 04758, 04785, 05478, 05487, 05748, …). The farthest-flung twin is 04785 in Van Buren, ME, 2,159 miles away.
- 🧭 Farther south than 97% of all ZIP codes, and farther west than 77%.
- 🎯918 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 78540 and you would come out at 26.55°S, 82.01°E — 1,384 miles from West Island, Cocos Islands, the nearest big city to that spot.
- ☀Longest day of the year: 13h 48m of daylight. Shortest: 10h 28m.
- 📏 At 7.8 square miles of land, 78540 is bigger than 24% of ZIP codes — room for about 5.9 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 0 |
|---|---|
| Households | 0 |
| Housing units | 6This ZIP6 |
| Population density | 0.0 / sq mi |
Business and tax activity
| Business establishments | 29This ZIP29 |
|---|---|
| Employees | 309This ZIP309 |
| Annual payroll | $9,508,000This ZIP$9,508,000 |
Land area
| Land area | 7.77 sq miThis ZIP7.77 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 78540
| ZIP | City | Distance |
|---|---|---|
78549 | Hargill, TX | 4.8 mi |
78561 | Lasara, TX | 7.3 mi |
78542 | Edinburg, TX | 10.1 mi |
78538 | Edcouch, TX | 12.6 mi |
78580 | Raymondville, TX | 15.4 mi |
78543 | Elsa, TX | 17.2 mi |
78558 | La Blanca, TX | 17.8 mi |
78594 | Sebastian, TX | 18.1 mi |
78563 | Linn, TX | 18.4 mi |
78541 | Edinburg, TX | 18.9 mi |
Find every ZIP code within 10 miles of 78540 →
Questions about this ZIP code
Where is ZIP code 78540?
78540 is in Edinburg, Texas, in Hidalgo County, part of the McAllen-Edinburg-Mission, TX metropolitan area. Its published point location is 26.5491, -97.9916.
What county is 78540 in?
78540 lies in Hidalgo County.
What area code is 78540?
Edinburg uses area code 956, from NANPA's telephone records.
What time zone is 78540 in?
78540 uses America/Chicago.
How many people live in 78540?
About 0 people live in ZIP code 78540. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 78540?
The closest are 78549 (4.8 mi), 78561 (7.3 mi), 78542 (10.1 mi), 78538 (12.6 mi) and 78580 (15.4 mi).
Is 78540 a PO Box ZIP code?
78540 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “78540 ZIP Code — Edinburg, Texas (Hidalgo County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78540
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/78540.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.