78657
ZIP 78657 is Horseshoe Bay, Texas, mostly in Llano County; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Llano +1 more
- Metro area
- none
- Population
- 7,591
- Coordinates
- 30.5334, -98.3784
Weather right now
Asking the National Weather Service…
Where 78657 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 78657 into a pocket calculator and turn it upside down: LSgBL — not quite a word, sorry.
- ➕ As a number, 78,657 = 3 × 157 × 167. Its digits add up to 33, a total 456 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011001101000001 - 🏠 Its numerical neighbours: 78656 (Maxwell, TX, 55 mi away) and 78658 (Ottine, TX, 79 mi away).
- 🔄 Backwards, 78657 becomes 75687 — and that is a real ZIP code: Price, TX, 229 miles away.
- 👥 22 other ZIP codes are made of exactly the same digits (58776, 65778, 65787, 67578, 67758, 67857, …). The farthest-flung twin is 58776 in Ross, ND, 1,244 miles away.
- 🧭 Farther south than 91% of all ZIP codes, and farther west than 78%.
- 🎯642 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 78657 and you would come out at 30.53°S, 81.62°E — 1,430 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 07m of daylight. Shortest: 10h 10m.
- 📏 At 38.8 square miles of land, 78657 is bigger than 52% of ZIP codes — room for about 29 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 7,591This ZIP7,591 |
|---|---|
| Households | 3,526This ZIP3,526 |
| Housing units | 5,385This ZIP5,385 |
| Median age | 59.3This ZIP59.3Texas35.6US 38.9 |
| Median household income | $91,452This ZIP$91,452Texas$78,476US $80,734 |
| Median home value | $483,200This ZIP$483,200Texas$283,800US $332,700 |
| Median gross rent | $1,492This ZIP$1,492Texas$1,403US $1,413 |
| Bachelor's degree or higher | 42.9%This ZIP42.9% |
| Mean commute | 25.2 minThis ZIP25.2 min |
| Population density | 195.8 / sq miThis ZIP195.8 / sq mi |
Business and tax activity
| Business establishments | 188This ZIP188 |
|---|---|
| Employees | 1,825This ZIP1,825 |
| Annual payroll | $77,816,000This ZIP$77,816,000 |
| Tax returns filed | 3,780This ZIP3,780 |
| Total adjusted gross income | $906,022,000This ZIP$906,022,000 |
Land area
| Land area | 38.77 sq miThis ZIP38.77 sq mi |
|---|---|
| Water area | 3.66 sq miThis ZIP3.66 sq mi |
Counties 78657 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Llano County | 69.2% |
| Burnet County | 30.8% |
Other place names in 78657
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 78657
| ZIP | City | Distance |
|---|---|---|
78663 | Round Mountain, TX | 9.1 mi |
78639 | Kingsland, TX | 9.7 mi |
78654 | Marble Falls, TX | 10.3 mi |
78636 | Johnson City, TX | 15.2 mi |
78609 | Buchanan Dam, TX | 15.4 mi |
78669 | Spicewood, TX | 16.4 mi |
78611 | Burnet, TX | 19.3 mi |
78675 | Willow City, TX | 20.7 mi |
78607 | Bluffton, TX | 20.8 mi |
78643 | Llano, TX | 22.4 mi |
Find every ZIP code within 10 miles of 78657 →
Questions about this ZIP code
Where is ZIP code 78657?
78657 is in Horseshoe Bay, Texas, in Llano County. Its published point location is 30.5334, -98.3784.
What county is 78657 in?
78657 spans 2 counties: Llano County and Burnet County. Most of it falls in Llano 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 time zone is 78657 in?
78657 uses America/Chicago.
How many people live in 78657?
About 7,591 people live in ZIP code 78657, in 3,526 households, at 195.8 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 78657?
$91,452 a year, against $78,476 across Texas.
What ZIP codes are near 78657?
The closest are 78663 (9.1 mi), 78639 (9.7 mi), 78654 (10.3 mi), 78636 (15.2 mi) and 78609 (15.4 mi).
Is 78657 a PO Box ZIP code?
78657 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “78657 ZIP Code — Horseshoe Bay, Texas (Llano County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78657
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/78657.json Underlying data is public domain or openly licensed — sources, vintages and licences.