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zipcodes.pro — ZIP/78609

78609

ZIP 78609 is Buchanan Dam, Texas, in Llano County; area codes 512 and 737; Central time.

Type
Standard
Time zone
America/Chicago
County
Llano
Metro area
none
Population
1,983
Coordinates
30.7469, -98.4514
☼ Live from 78609 — Buchanan Dam, TX

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Local time: —

Where 78609 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 78609
  • 🔢 Type 78609 into a pocket calculator and turn it upside down: GOgBL — not quite a word, sorry.
  • ➕ As a number, 78,609 = 3 × 26203. Its digits add up to 30, a total 1,024 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001100010001
  • 🏠 Its numerical neighbours: 78608 (Briggs, TX, 33 mi away) and 78610 (Buda, TX, 59 mi away).
  • 🔄 Backwards, 78609 becomes 90687, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (06798, 06879, 06897, 07869, 09768, 09876, …). The farthest-flung twin is 09768 in APO AE, a military post office, 7,983 miles away.
  • 🧭 Farther south than 91% of all ZIP codes, and farther west than 78%.
  • 🎯628 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78609 and you would come out at 30.75°S, 81.55°E — 1,414 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 08m of daylight. Shortest: 10h 09m.
  • 📏 At 15.9 square miles of land, 78609 is bigger than 34% of ZIP codes — room for about 12 Central Parks.
🌙 The sky over 78609 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,983This ZIP1,983
Households1,065This ZIP1,065
Housing units1,354This ZIP1,354
Median age60.4This ZIP60.4Texas35.6US 38.9
Median household income$64,418This ZIP$64,418Texas$78,476US $80,734
Median home value$319,700This ZIP$319,700Texas$283,800US $332,700
Median gross rent$651This ZIP$651Texas$1,403US $1,413
Bachelor's degree or higher25.2%This ZIP25.2%
Mean commute30.6 minThis ZIP30.6 min
Population density124.9 / sq miThis ZIP124.9 / sq mi

Business and tax activity

Business establishments46This ZIP46
Employees248This ZIP248
Annual payroll$10,392,000This ZIP$10,392,000
Tax returns filed990This ZIP990
Total adjusted gross income$79,241,000This ZIP$79,241,000

Land area

Land area15.88 sq miThis ZIP15.88 sq mi
Water area12.03 sq miThis ZIP12.03 sq mi

Other place names in 78609

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

ZIP codes near 78609

ZIPCityDistance
78607 Bluffton, TX 5.5 mi
78639 Kingsland, TX 6.3 mi
78672 Tow, TX 9.6 mi
78611 Burnet, TX 10.6 mi
76824 Bend, TX 13.2 mi
78657 Horseshoe Bay, TX 15.4 mi
78643 Llano, TX 16.3 mi
78654 Marble Falls, TX 18.7 mi
76832 Cherokee, TX 23.0 mi
78605 Bertram, TX 24.2 mi

Find every ZIP code within 10 miles of 78609 →

Questions about this ZIP code

Where is ZIP code 78609?

78609 is in Buchanan Dam, Texas, in Llano County. Its published point location is 30.7469, -98.4514.

What county is 78609 in?

78609 lies in Llano County.

What area code is 78609?

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

What time zone is 78609 in?

78609 uses America/Chicago.

How many people live in 78609?

About 1,983 people live in ZIP code 78609, in 1,065 households, at 124.9 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 78609?

$64,418 a year, against $78,476 across Texas.

What ZIP codes are near 78609?

The closest are 78607 (5.5 mi), 78639 (6.3 mi), 78672 (9.6 mi), 78611 (10.6 mi) and 76824 (13.2 mi).

Is 78609 a PO Box ZIP code?

78609 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “78609 ZIP Code — Buchanan Dam, Texas (Llano County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78609

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