Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/78645

78645

ZIP 78645 is in Leander, Texas, in Travis County; area codes 512 and 737; Central time. Leander has 3 ZIP codes; the others are 78641 and 78646.

Type
Standard
Time zone
America/Chicago
County
Travis
Population
15,256
Coordinates
30.4500, -97.9720
☼ Live from 78645 — Leander, TX

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 78645 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 78645
  • 🔢 Type 78645 into a pocket calculator and turn it upside down: ShgBL — not quite a word, sorry.
  • ➕ As a number, 78,645 = 3 × 5 × 7 × 7 × 107. Its digits add up to 30, a total 1,024 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001100110101
  • 🏠 Its numerical neighbours: 78644 (Lockhart, TX, 44 mi away) and 78646 (Leander, TX, 11 mi away).
  • 🔄 Backwards, 78645 becomes 54687, which is not a ZIP code at all.
  • 👥 54 other ZIP codes are made of exactly the same digits (45678, 45687, 45768, 45786, 45867, 45876, …). The farthest-flung twin is 58746 in Kenmare, ND, 1,280 miles away.
  • 🧭 Farther south than 92% of all ZIP codes, and farther west than 77%.
  • 🎯649 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78645 and you would come out at 30.45°S, 82.03°E — 1,444 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 32.6 square miles of land, 78645 is bigger than 48% of ZIP codes — room for about 25 Central Parks.
🌙 The sky over 78645 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population15,256This ZIP15,256
Households7,048This ZIP7,048
Housing units7,984This ZIP7,984
Median age54.4This ZIP54.4Texas35.6US 38.9
Median household income$113,008This ZIP$113,008Texas$78,476US $80,734
Median home value$434,600This ZIP$434,600Texas$283,800US $332,700
Median gross rent$1,608This ZIP$1,608Texas$1,403US $1,413
Bachelor's degree or higher45.9%This ZIP45.9%
Mean commute35.4 minThis ZIP35.4 min
Population density468.3 / sq miThis ZIP468.3 / sq mi

Business and tax activity

Business establishments385This ZIP385
Employees1,790This ZIP1,790
Annual payroll$88,529,000This ZIP$88,529,000
Tax returns filed8,260This ZIP8,260
Total adjusted gross income$1,197,070,000This ZIP$1,197,070,000

Land area

Land area32.58 sq miThis ZIP32.58 sq mi
Water area6.44 sq miThis ZIP6.44 sq mi

Other place names in 78645

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

ZIP codes near 78645

ZIPCityDistance
78734 Austin, TX 5.0 mi
78732 Austin, TX 6.8 mi
78726 Austin, TX 8.0 mi
78641 Leander, TX 8.2 mi
78669 Spicewood, TX 9.0 mi
78630 Cedar Park, TX 9.8 mi
78730 Austin, TX 9.9 mi
78613 Cedar Park, TX 9.9 mi
78738 Austin, TX 9.9 mi
78733 Austin, TX 10.3 mi

Find every ZIP code within 10 miles of 78645 →

Questions about this ZIP code

Where is ZIP code 78645?

78645 is in Leander, Texas, in Travis County, part of the Austin-Round Rock-San Marcos, TX metropolitan area. Its published point location is 30.4500, -97.9720.

What county is 78645 in?

78645 lies in Travis County.

What area code is 78645?

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

What time zone is 78645 in?

78645 uses America/Chicago.

How many people live in 78645?

About 15,256 people live in ZIP code 78645, in 7,048 households, at 468.3 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 78645?

$113,008 a year, against $78,476 across Texas.

What ZIP codes are near 78645?

The closest are 78734 (5 mi), 78732 (6.8 mi), 78726 (8 mi), 78641 (8.2 mi) and 78669 (9 mi).

Is 78645 a PO Box ZIP code?

78645 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “78645 ZIP Code — Leander, Texas (Travis County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78645

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/78645.json

Underlying data is public domain or openly licensed — sources, vintages and licences.