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zipcodes.pro — ZIP/78634

78634

ZIP 78634 is Hutto, Texas, mostly in Williamson County; area codes 737 and 512; Central time.

Type
Standard
Time zone
America/Chicago
County
Williamson +1 more
Population
46,413
Coordinates
30.5599, -97.5441
☼ Live from 78634 — Hutto, TX

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Where 78634 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 78634
  • 🔢 Type 78634 into a pocket calculator and turn it upside down: hEgBL — not quite a word, sorry.
  • ➕ As a number, 78,634 = 2 × 39317. Its digits add up to 28, a total 1,520 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001100101010
  • 🏠 Its numerical neighbours: 78633 (Georgetown, TX, 17 mi away) and 78635 (Hye, TX, 64 mi away).
  • 🔄 Backwards, 78634 becomes 43687, which is not a ZIP code at all.
  • 👥 57 other ZIP codes are made of exactly the same digits (34786, 36748, 36784, 36874, 37684, 37846, …). The farthest-flung twin is 83467 in Salmon, ID, 1,334 miles away.
  • 🧭 Farther south than 91% of all ZIP codes, and farther west than 76%.
  • 🎯643 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78634 and you would come out at 30.56°S, 82.46°E — 1,447 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 56.4 square miles of land, 78634 is bigger than 63% of ZIP codes — room for about 43 Central Parks.
🌙 The sky over 78634 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population46,413This ZIP46,413
Households15,808This ZIP15,808
Housing units16,333This ZIP16,333
Median age34.9This ZIP34.9Texas35.6US 38.9
Median household income$114,426This ZIP$114,426Texas$78,476US $80,734
Median home value$375,200This ZIP$375,200Texas$283,800US $332,700
Median gross rent$2,020This ZIP$2,020Texas$1,403US $1,413
Bachelor's degree or higher36.9%This ZIP36.9%
Mean commute29.1 minThis ZIP29.1 min
Population density823.1 / sq miThis ZIP823.1 / sq mi

Business and tax activity

Business establishments744This ZIP744
Employees8,450This ZIP8,450
Annual payroll$421,416,000This ZIP$421,416,000
Tax returns filed22,320This ZIP22,320
Total adjusted gross income$1,866,537,000This ZIP$1,866,537,000

Land area

Land area56.39 sq miThis ZIP56.39 sq mi
Water area0.36 sq miThis ZIP0.36 sq mi

Counties 78634 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Williamson County 99.6%
Travis County 0.4%

Other place names in 78634

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

ZIP codes near 78634

ZIPCityDistance
78665 Round Rock, TX 5.5 mi
78664 Round Rock, TX 7.2 mi
78680 Round Rock, TX 7.5 mi
78682 Round Rock, TX 7.5 mi
78683 Round Rock, TX 7.5 mi
78626 Georgetown, TX 8.1 mi
78674 Weir, TX 8.3 mi
78660 Pflugerville, TX 8.8 mi
76574 Taylor, TX 9.3 mi
78627 Georgetown, TX 9.4 mi

Find every ZIP code within 10 miles of 78634 →

Questions about this ZIP code

Where is ZIP code 78634?

78634 is in Hutto, Texas, in Williamson County, part of the Austin-Round Rock-San Marcos, TX metropolitan area. Its published point location is 30.5599, -97.5441.

What county is 78634 in?

78634 spans 2 counties: Williamson County and Travis County. Most of it falls in Williamson 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 area code is 78634?

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

What time zone is 78634 in?

78634 uses America/Chicago.

How many people live in 78634?

About 46,413 people live in ZIP code 78634, in 15,808 households, at 823.1 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 78634?

$114,426 a year, against $78,476 across Texas.

What ZIP codes are near 78634?

The closest are 78665 (5.5 mi), 78664 (7.2 mi), 78680 (7.5 mi), 78682 (7.5 mi) and 78683 (7.5 mi).

Is 78634 a PO Box ZIP code?

78634 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “78634 ZIP Code — Hutto, Texas (Williamson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78634

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