78839
ZIP 78839 is Crystal City, Texas, mostly in Zavala County; area code 830; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Zavala +1 more
- Metro area
- none
- Population
- 7,091
- Coordinates
- 28.7145, -99.7397
Weather right now
Asking the National Weather Service…
Where 78839 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 78839 into a pocket calculator and turn it upside down: GEBBL — not quite a word, sorry.
- ➕ 78839 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 35, a total 212 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011001111110111 - 🏠 Its numerical neighbours: 78838 (Concan, TX, 57 mi away) and 78840 (Del Rio, TX, 100 mi away).
- 🔄 Backwards, 78839 becomes 93887, which is not a ZIP code at all.
- 👥 10 other ZIP codes are made of exactly the same digits (38879, 78389, 78938, 79838, 97388, 97838, …). The farthest-flung twin is 98378 in Retsil, WA, 1,786 miles away.
- 🧭 Farther south than 95% of all ZIP codes, and farther west than 79%.
- 🎯771 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 78839 and you would come out at 28.71°S, 80.26°E — 1,521 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 13h 58m of daylight. Shortest: 10h 19m.
- 📏 At 244.2 square miles of land, 78839 is bigger than 93% of ZIP codes — room for about 185 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 7,091This ZIP7,091 |
|---|---|
| Households | 2,544This ZIP2,544 |
| Housing units | 3,028This ZIP3,028 |
| Median age | 31.2This ZIP31.2Texas35.6US 38.9 |
| Median household income | $37,365This ZIP$37,365Texas$78,476US $80,734 |
| Median home value | $103,700This ZIP$103,700Texas$283,800US $332,700 |
| Median gross rent | $519This ZIP$519Texas$1,403US $1,413 |
| Bachelor's degree or higher | 10.9%This ZIP10.9% |
| Mean commute | 17.1 minThis ZIP17.1 min |
| Population density | 29.0 / sq miThis ZIP29.0 / sq mi |
Business and tax activity
| Business establishments | 74This ZIP74 |
|---|---|
| Employees | 1,242This ZIP1,242 |
| Annual payroll | $53,274,000This ZIP$53,274,000 |
| Tax returns filed | 2,960This ZIP2,960 |
| Total adjusted gross income | $120,784,000This ZIP$120,784,000 |
Land area
| Land area | 244.15 sq miThis ZIP244.15 sq mi |
|---|---|
| Water area | 1.44 sq miThis ZIP1.44 sq mi |
Counties 78839 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Zavala County | 97.9% |
| Dimmit County | 2.1% |
Other place names in 78839
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 78839
| ZIP | City | Distance |
|---|---|---|
78834 | Carrizo Springs, TX | 14.1 mi |
78829 | Batesville, TX | 15.4 mi |
78872 | La Pryor, TX | 15.8 mi |
78827 | Asherton, TX | 19.6 mi |
78830 | Big Wells, TX | 20.9 mi |
78836 | Catarina, TX | 28.3 mi |
78802 | Uvalde, TX | 31.8 mi |
78017 | Dilley, TX | 32.3 mi |
78852 | Eagle Pass, TX | 33.5 mi |
78860 | El Indio, TX | 36.8 mi |
Find every ZIP code within 10 miles of 78839 →
Questions about this ZIP code
Where is ZIP code 78839?
78839 is in Crystal City, Texas, in Zavala County. Its published point location is 28.7145, -99.7397.
What county is 78839 in?
78839 spans 2 counties: Zavala County and Dimmit County. Most of it falls in Zavala 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 78839?
Crystal City uses area code 830, from NANPA's telephone records.
What time zone is 78839 in?
78839 uses America/Chicago.
How many people live in 78839?
About 7,091 people live in ZIP code 78839, in 2,544 households, at 29.0 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 78839?
$37,365 a year, against $78,476 across Texas.
What ZIP codes are near 78839?
The closest are 78834 (14.1 mi), 78829 (15.4 mi), 78872 (15.8 mi), 78827 (19.6 mi) and 78830 (20.9 mi).
Is 78839 a PO Box ZIP code?
78839 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “78839 ZIP Code — Crystal City, Texas (Zavala County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78839
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/78839.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.