79721
ZIP 79721 is in Big Spring, Texas, in Howard County; area code 432; Central time. Big Spring has 2 ZIP codes; the other is 79720.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Howard
- Metro area
- Big Spring, TX
- Population
- 352
- Coordinates
- 32.2249, -101.5274
Weather right now
Asking the National Weather Service…
Where 79721 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 79721 into a pocket calculator and turn it upside down: IZLGL — not quite a word, sorry.
- ➕ As a number, 79,721 = 29 × 2749. Its digits add up to 26, a total 2,038 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011011101101001 - 🏠 Its numerical neighbours: 79720 (Big Spring, TX, 2 mi away) and 79730 (Coyanosa, TX, 115 mi away).
- 🔄 Backwards, 79721 becomes 12797, which is not a ZIP code at all.
- 👥 24 other ZIP codes are made of exactly the same digits (12779, 12977, 17729, 17972, 21779, 21797, …). The farthest-flung twin is 12977 in Ray Brook, NY, 1,694 miles away.
- 🧭 Farther south than 87% of all ZIP codes, and farther west than 80%.
- 🎯550 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 79721 and you would come out at 32.22°S, 78.47°E — 1,258 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 16m of daylight. Shortest: 10h 02m.
- 📏 At 0.038 square miles of land, 79721 is bigger than 0% of ZIP codes — about 18 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 352This ZIP352 |
|---|---|
| Households | 0 |
| Housing units | 0 |
| Median age | 38.3This ZIP38.3Texas35.6US 38.9 |
| Bachelor's degree or higher | 2.1%This ZIP2.1% |
| Population density | 9,263.2 / sq miThis ZIP9,263.2 / sq mi |
Business and tax activity
| Business establishments | 24This ZIP24 |
|---|---|
| Employees | 190This ZIP190 |
| Annual payroll | $13,594,000This ZIP$13,594,000 |
Land area
| Land area | 0.04 sq miThis ZIP0.04 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 79721
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 79721
| ZIP | City | Distance |
|---|---|---|
79720 | Big Spring, TX | 2.2 mi |
79733 | Forsan, TX | 12.3 mi |
79748 | Knott, TX | 13.9 mi |
79749 | Lenorah, TX | 18.1 mi |
79511 | Coahoma, TX | 20.9 mi |
79782 | Stanton, TX | 20.9 mi |
79713 | Ackerly, TX | 22.7 mi |
79565 | Westbrook, TX | 27.0 mi |
79783 | Tarzan, TX | 31.4 mi |
79739 | Garden City, TX | 31.5 mi |
Find every ZIP code within 10 miles of 79721 →
Questions about this ZIP code
Where is ZIP code 79721?
79721 is in Big Spring, Texas, in Howard County, part of the Big Spring, TX micropolitan area. Its published point location is 32.2249, -101.5274.
What county is 79721 in?
79721 lies in Howard County.
What area code is 79721?
Big Spring uses area code 432, from NANPA's telephone records.
What time zone is 79721 in?
79721 uses America/Chicago.
How many people live in 79721?
About 352 people live in ZIP code 79721, at 9,263.2 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 79721?
The closest are 79720 (2.2 mi), 79733 (12.3 mi), 79748 (13.9 mi), 79749 (18.1 mi) and 79511 (20.9 mi).
Is 79721 a PO Box ZIP code?
79721 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “79721 ZIP Code — Big Spring, Texas (Howard County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/79721
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/79721.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.