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Where 78151 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 78151 into a pocket calculator and turn it upside down: ISIBL — not quite a word, sorry.
- ➕ As a number, 78,151 = 31 × 2521. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011000101000111 - 🏠 Its numerical neighbours: 78150 (Jbsa Randolph, TX, 57 mi away) and 78152 (Saint Hedwig, TX, 49 mi away).
- 🔄 Backwards, 78151 becomes 15187, which is not a ZIP code at all.
- 👥 19 other ZIP codes are made of exactly the same digits (11758, 15781, 17518, 17581, 17815, 17851, …). The farthest-flung twin is 11758 in Massapequa, NY, 1,592 miles away.
- 🧭 Farther south than 95% of all ZIP codes, and farther west than 76%.
- 🎯759 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 78151 and you would come out at 28.87°S, 82.29°E — 1,486 miles from West Island, Cocos Islands, the nearest big city to that spot.
- ☀Longest day of the year: 13h 59m of daylight. Shortest: 10h 18m.
- 📏 At 107.4 square miles of land, 78151 is bigger than 79% of ZIP codes — room for about 82 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,378This ZIP1,378 |
|---|---|
| Households | 628This ZIP628 |
| Housing units | 731This ZIP731 |
| Median age | 20.9This ZIP20.9Texas35.6US 38.9 |
| Median household income | $26,597This ZIP$26,597Texas$78,476US $80,734 |
| Median home value | $100,900This ZIP$100,900Texas$283,800US $332,700 |
| Bachelor's degree or higher | 26.2%This ZIP26.2% |
| Mean commute | 21.5 minThis ZIP21.5 min |
| Population density | 12.8 / sq miThis ZIP12.8 / sq mi |
Business and tax activity
| Business establishments | 18This ZIP18 |
|---|---|
| Employees | 94This ZIP94 |
| Annual payroll | $4,377,000This ZIP$4,377,000 |
| Tax returns filed | 560This ZIP560 |
| Total adjusted gross income | $81,151,000This ZIP$81,151,000 |
Land area
| Land area | 107.39 sq miThis ZIP107.39 sq mi |
|---|---|
| Water area | 0.54 sq miThis ZIP0.54 sq mi |
Counties 78151 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Karnes County | 95.2% |
| DeWitt County | 4.8% |
Other place names in 78151
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 78151
| ZIP | City | Distance |
|---|---|---|
78141 | Nordheim, TX | 6.3 mi |
78111 | Ecleto, TX | 11.5 mi |
78144 | Panna Maria, TX | 12.2 mi |
78118 | Karnes City, TX | 13.6 mi |
78117 | Hobson, TX | 13.6 mi |
78164 | Yorktown, TX | 13.9 mi |
78119 | Kenedy, TX | 15.9 mi |
78116 | Gillett, TX | 16.2 mi |
77993 | Weesatche, TX | 17.8 mi |
78146 | Pettus, TX | 19.9 mi |
Find every ZIP code within 10 miles of 78151 →
Questions about this ZIP code
Where is ZIP code 78151?
78151 is in Runge, Texas, in Karnes County. Its published point location is 28.8699, -97.7135.
What county is 78151 in?
78151 spans 2 counties: Karnes County and DeWitt County. Most of it falls in Karnes 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 78151?
Runge uses area code 830, from NANPA's telephone records.
What time zone is 78151 in?
78151 uses America/Chicago.
How many people live in 78151?
About 1,378 people live in ZIP code 78151, in 628 households, at 12.8 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 78151?
$26,597 a year, against $78,476 across Texas.
What ZIP codes are near 78151?
The closest are 78141 (6.3 mi), 78111 (11.5 mi), 78144 (12.2 mi), 78118 (13.6 mi) and 78117 (13.6 mi).
Is 78151 a PO Box ZIP code?
78151 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “78151 ZIP Code — Runge, Texas (Karnes County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78151
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/78151.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.