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Where 78748 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 78748 into a pocket calculator and turn it upside down: BhLBL — not quite a word, sorry.
- ➕ As a number, 78,748 = 2 × 2 × 19687. Its digits add up to 34, a total 322 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011001110011100 - 🏠 Its numerical neighbours: 78747 (Austin, TX, 5 mi away) and 78749 (Austin, TX, 4 mi away).
- 🔄 Backwards, 78748 becomes 84787, which is not a ZIP code at all.
- 👥 6 other ZIP codes are made of exactly the same digits (47878, 48787, 48877, 74878, 77488, 78847). The farthest-flung twin is 48787 in Frankenmuth, MI, 1,195 miles away.
- 🧭 Farther south than 93% of all ZIP codes, and farther west than 77%.
- 🎯669 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 78748 and you would come out at 30.16°S, 82.18°E — 1,466 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 05m of daylight. Shortest: 10h 12m.
- 📏 At 14.1 square miles of land, 78748 is bigger than 32% of ZIP codes — room for about 11 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 55,631This ZIP55,631 |
|---|---|
| Households | 25,231This ZIP25,231 |
| Housing units | 26,420This ZIP26,420 |
| Median age | 36.4This ZIP36.4Texas35.6US 38.9 |
| Median household income | $115,213This ZIP$115,213Texas$78,476US $80,734 |
| Median home value | $465,100This ZIP$465,100Texas$283,800US $332,700 |
| Median gross rent | $1,839This ZIP$1,839Texas$1,403US $1,413 |
| Bachelor's degree or higher | 56.5%This ZIP56.5% |
| Mean commute | 29.3 minThis ZIP29.3 min |
| Population density | 3,936.0 / sq miThis ZIP3,936.0 / sq mi |
Business and tax activity
| Business establishments | 1,138This ZIP1,138 |
|---|---|
| Employees | 11,384This ZIP11,384 |
| Annual payroll | $502,853,000This ZIP$502,853,000 |
| Tax returns filed | 27,480This ZIP27,480 |
| Total adjusted gross income | $2,478,064,000This ZIP$2,478,064,000 |
Land area
| Land area | 14.13 sq miThis ZIP14.13 sq mi |
|---|---|
| Water area | 0.00 sq miThis ZIP0.00 sq mi |
Other place names in 78748
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 78748
| ZIP | City | Distance |
|---|---|---|
78652 | Manchaca, TX | 2.8 mi |
78745 | Austin, TX | 3.6 mi |
78739 | Austin, TX | 4.2 mi |
78749 | Austin, TX | 4.3 mi |
78747 | Austin, TX | 5.5 mi |
78610 | Buda, TX | 5.7 mi |
78744 | Austin, TX | 6.0 mi |
78704 | Austin, TX | 6.7 mi |
78735 | Austin, TX | 8.0 mi |
78737 | Austin, TX | 8.1 mi |
Find every ZIP code within 10 miles of 78748 →
Questions about this ZIP code
Where is ZIP code 78748?
78748 is in Austin, Texas, in Travis County, part of the Austin-Round Rock-San Marcos, TX metropolitan area. Its published point location is 30.1600, -97.8233.
What county is 78748 in?
78748 lies in Travis County.
What area code is 78748?
Austin uses area codes 512 and 737, from NANPA's telephone records.
What time zone is 78748 in?
78748 uses America/Chicago.
How many people live in 78748?
About 55,631 people live in ZIP code 78748, in 25,231 households, at 3,936.0 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 78748?
$115,213 a year, against $78,476 across Texas.
What ZIP codes are near 78748?
The closest are 78652 (2.8 mi), 78745 (3.6 mi), 78739 (4.2 mi), 78749 (4.3 mi) and 78747 (5.5 mi).
Is 78748 a PO Box ZIP code?
78748 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “78748 ZIP Code — Austin, Texas (Travis County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78748
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/78748.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.