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zipcodes.pro — ZIP/78717

78717

ZIP 78717 is in Austin, Texas, in Williamson County; area codes 512 and 737; Central time. Austin has 74 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Williamson
Population
37,262
Coordinates
30.4895, -97.7538
☼ Live from 78717 — Austin, TX

Weather right now

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Local time: —

Where 78717 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.

★ Weird and wonderful facts about 78717
  • 🔢 Type 78717 into a pocket calculator and turn it upside down: LILBL — not quite a word, sorry.
  • ➕ As a number, 78,717 = 3 × 19 × 1381. Its digits add up to 30, a total 1,024 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001101111101
  • 🏠 Its numerical neighbours: 78716 (Austin, TX, 14 mi away) and 78718 (Austin, TX, 11 mi away).
  • 🔄 Backwards, 78717 becomes 71787, which is not a ZIP code at all.
  • 👥 3 other ZIP codes are made of exactly the same digits (17778, 17877, 77871). The farthest-flung twin is 17877 in Snydertown, PA, 1,379 miles away.
  • 🧭 Farther south than 92% of all ZIP codes, and farther west than 76%.
  • 🎯647 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78717 and you would come out at 30.49°S, 82.25°E — 1,446 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 13.0 square miles of land, 78717 is bigger than 31% of ZIP codes — room for about 9.9 Central Parks.
🌙 The sky over 78717 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population37,262This ZIP37,262
Households14,939This ZIP14,939
Housing units15,361This ZIP15,361
Median age36.8This ZIP36.8Texas35.6US 38.9
Median household income$145,325This ZIP$145,325Texas$78,476US $80,734
Median home value$652,200This ZIP$652,200Texas$283,800US $332,700
Median gross rent$1,867This ZIP$1,867Texas$1,403US $1,413
Bachelor's degree or higher68.9%This ZIP68.9%
Mean commute27.7 minThis ZIP27.7 min
Population density2,856.4 / sq miThis ZIP2,856.4 / sq mi

Business and tax activity

Business establishments741This ZIP741
Employees12,112This ZIP12,112
Annual payroll$1,069,950,000This ZIP$1,069,950,000
Tax returns filed17,140This ZIP17,140
Total adjusted gross income$2,650,843,000This ZIP$2,650,843,000

Land area

Land area13.05 sq miThis ZIP13.05 sq mi
Water area0.08 sq miThis ZIP0.08 sq mi

Other place names in 78717

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 78717

ZIPCityDistance
78729 Austin, TX 2.2 mi
78750 Austin, TX 3.9 mi
78613 Cedar Park, TX 4.1 mi
78630 Cedar Park, TX 4.1 mi
78681 Round Rock, TX 4.2 mi
78728 Austin, TX 4.7 mi
78727 Austin, TX 4.7 mi
78759 Austin, TX 6.0 mi
78764 Austin, TX 6.4 mi
78664 Round Rock, TX 6.4 mi

Find every ZIP code within 10 miles of 78717 →

Questions about this ZIP code

Where is ZIP code 78717?

78717 is in Austin, Texas, in Williamson County, part of the Austin-Round Rock-San Marcos, TX metropolitan area. Its published point location is 30.4895, -97.7538.

What county is 78717 in?

78717 lies in Williamson County.

What area code is 78717?

Austin uses area codes 512 and 737, from NANPA's telephone records.

What time zone is 78717 in?

78717 uses America/Chicago.

How many people live in 78717?

About 37,262 people live in ZIP code 78717, in 14,939 households, at 2,856.4 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 78717?

$145,325 a year, against $78,476 across Texas.

What ZIP codes are near 78717?

The closest are 78729 (2.2 mi), 78750 (3.9 mi), 78613 (4.1 mi), 78630 (4.1 mi) and 78681 (4.2 mi).

Is 78717 a PO Box ZIP code?

78717 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “78717 ZIP Code — Austin, Texas (Williamson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78717

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