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Where 78725 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 78725 into a pocket calculator and turn it upside down: SZLBL — not quite a word, sorry.
- ➕ As a number, 78,725 = 5 × 5 × 47 × 67. Its digits add up to 29, a total 1,296 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011001110000101 - 🏠 Its numerical neighbours: 78724 (Austin, TX, 4 mi away) and 78726 (Austin, TX, 20 mi away).
- 🔄 Backwards, 78725 becomes 52787, which is not a ZIP code at all.
- 👥 28 other ZIP codes are made of exactly the same digits (25778, 27587, 27857, 27875, 28577, 28757, …). The farthest-flung twin is 58772 in Portal, ND, 1,321 miles away.
- 🧭 Farther south than 92% of all ZIP codes, and farther west than 76%.
- 🎯665 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 78725 and you would come out at 30.23°S, 82.39°E — 1,466 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 06m of daylight. Shortest: 10h 12m.
- 📏 At 17.7 square miles of land, 78725 is bigger than 35% of ZIP codes — room for about 13 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 10,746This ZIP10,746 |
|---|---|
| Households | 4,349This ZIP4,349 |
| Housing units | 4,398This ZIP4,398 |
| Median age | 36.9This ZIP36.9Texas35.6US 38.9 |
| Median household income | $105,795This ZIP$105,795Texas$78,476US $80,734 |
| Median home value | $330,600This ZIP$330,600Texas$283,800US $332,700 |
| Median gross rent | $2,232This ZIP$2,232Texas$1,403US $1,413 |
| Bachelor's degree or higher | 34.7%This ZIP34.7% |
| Mean commute | 32.9 minThis ZIP32.9 min |
| Population density | 608.1 / sq miThis ZIP608.1 / sq mi |
Business and tax activity
| Business establishments | 91This ZIP91 |
|---|---|
| Employees | 6,033This ZIP6,033 |
| Annual payroll | $970,958,000This ZIP$970,958,000 |
| Tax returns filed | 5,470This ZIP5,470 |
| Total adjusted gross income | $350,255,000This ZIP$350,255,000 |
Land area
| Land area | 17.67 sq miThis ZIP17.67 sq mi |
|---|---|
| Water area | 0.68 sq miThis ZIP0.68 sq mi |
Other place names in 78725
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 78725
| ZIP | City | Distance |
|---|---|---|
78742 | Austin, TX | 3.1 mi |
78724 | Austin, TX | 4.4 mi |
78721 | Austin, TX | 5.3 mi |
78617 | Del Valle, TX | 5.7 mi |
78741 | Austin, TX | 6.3 mi |
78702 | Austin, TX | 6.7 mi |
78723 | Austin, TX | 6.9 mi |
78719 | Austin, TX | 7.3 mi |
78722 | Austin, TX | 7.6 mi |
78744 | Austin, TX | 7.8 mi |
Find every ZIP code within 10 miles of 78725 →
Questions about this ZIP code
Where is ZIP code 78725?
78725 is in Austin, Texas, in Travis County, part of the Austin-Round Rock-San Marcos, TX metropolitan area. Its published point location is 30.2300, -97.6086.
What county is 78725 in?
78725 lies in Travis County.
What area code is 78725?
Austin uses area codes 512 and 737, from NANPA's telephone records.
What time zone is 78725 in?
78725 uses America/Chicago.
How many people live in 78725?
About 10,746 people live in ZIP code 78725, in 4,349 households, at 608.1 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 78725?
$105,795 a year, against $78,476 across Texas.
What ZIP codes are near 78725?
The closest are 78742 (3.1 mi), 78724 (4.4 mi), 78721 (5.3 mi), 78617 (5.7 mi) and 78741 (6.3 mi).
Is 78725 a PO Box ZIP code?
78725 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “78725 ZIP Code — Austin, Texas (Travis County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78725
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/78725.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.