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Where 78734 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 78734 into a pocket calculator and turn it upside down: hELBL — not quite a word, sorry.
- ➕ As a number, 78,734 = 2 × 39367. Its digits add up to 29, a total 1,296 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011001110001110 - 🏠 Its numerical neighbours: 78733 (Austin, TX, 6 mi away) and 78735 (Austin, TX, 9 mi away).
- 🔄 Backwards, 78734 becomes 43787 — and that is a real ZIP code: Stockport, OH, 1,109 miles away.
- 👥 29 other ZIP codes are made of exactly the same digits (34778, 34787, 37748, 37847, 37874, 38477, …). The farthest-flung twin is 48737 in Glennie, MI, 1,248 miles away.
- 🧭 Farther south than 92% of all ZIP codes, and farther west than 77%.
- 🎯654 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 78734 and you would come out at 30.38°S, 82.05°E — 1,449 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 11m.
- 📏 At 18.9 square miles of land, 78734 is bigger than 36% of ZIP codes — room for about 14 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 22,145This ZIP22,145 |
|---|---|
| Households | 9,881This ZIP9,881 |
| Housing units | 10,951This ZIP10,951 |
| Median age | 49.0This ZIP49.0Texas35.6US 38.9 |
| Median household income | $130,784This ZIP$130,784Texas$78,476US $80,734 |
| Median home value | $677,300This ZIP$677,300Texas$283,800US $332,700 |
| Median gross rent | $1,851This ZIP$1,851Texas$1,403US $1,413 |
| Bachelor's degree or higher | 59.1%This ZIP59.1% |
| Mean commute | 27.7 minThis ZIP27.7 min |
| Population density | 1,169.5 / sq miThis ZIP1,169.5 / sq mi |
Business and tax activity
| Business establishments | 1,003This ZIP1,003 |
|---|---|
| Employees | 7,582This ZIP7,582 |
| Annual payroll | $418,669,000This ZIP$418,669,000 |
| Tax returns filed | 11,150This ZIP11,150 |
| Total adjusted gross income | $2,695,695,000This ZIP$2,695,695,000 |
Land area
| Land area | 18.94 sq miThis ZIP18.94 sq mi |
|---|---|
| Water area | 4.26 sq miThis ZIP4.26 sq mi |
Other place names in 78734
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 78734
| ZIP | City | Distance |
|---|---|---|
78732 | Austin, TX | 3.3 mi |
78645 | Leander, TX | 5.0 mi |
78733 | Austin, TX | 5.5 mi |
78738 | Austin, TX | 5.6 mi |
78730 | Austin, TX | 6.5 mi |
78716 | Austin, TX | 6.9 mi |
78726 | Austin, TX | 7.3 mi |
78735 | Austin, TX | 9.0 mi |
78736 | Austin, TX | 9.1 mi |
78746 | Austin, TX | 10.1 mi |
Find every ZIP code within 10 miles of 78734 →
Questions about this ZIP code
Where is ZIP code 78734?
78734 is in Austin, Texas, in Travis County, part of the Austin-Round Rock-San Marcos, TX metropolitan area. Its published point location is 30.3801, -97.9478.
What county is 78734 in?
78734 lies in Travis County.
What area code is 78734?
Austin uses area codes 512 and 737, from NANPA's telephone records.
What time zone is 78734 in?
78734 uses America/Chicago.
How many people live in 78734?
About 22,145 people live in ZIP code 78734, in 9,881 households, at 1,169.5 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 78734?
$130,784 a year, against $78,476 across Texas.
What ZIP codes are near 78734?
The closest are 78732 (3.3 mi), 78645 (5 mi), 78733 (5.5 mi), 78738 (5.6 mi) and 78730 (6.5 mi).
Is 78734 a PO Box ZIP code?
78734 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “78734 ZIP Code — Austin, Texas (Travis County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78734
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/78734.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.