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zipcodes.pro — ZIP/78623

78623

ZIP 78623 is Fischer, Texas, mostly in Comal County; area codes 512 and 737; Central time.

Type
Standard
Time zone
America/Chicago
County
Comal +1 more
Population
1,645
Coordinates
29.9553, -98.2168
☼ Live from 78623 — Fischer, TX

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Local time: —

Where 78623 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 78623
  • 🔢 Type 78623 into a pocket calculator and turn it upside down: EZgBL — not quite a word, sorry.
  • ➕ 78623 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001100011111
  • 🏠 Its numerical neighbours: 78622 (Fentress, TX, 29 mi away) and 78624 (Fredericksburg, TX, 45 mi away).
  • 🔄 Backwards, 78623 becomes 32687, which is not a ZIP code at all.
  • 👥 52 other ZIP codes are made of exactly the same digits (23867, 23876, 26378, 27836, 27863, 28367, …). The farthest-flung twin is 83672 in Weiser, ID, 1,428 miles away.
  • 🧭 Farther south than 93% of all ZIP codes, and farther west than 77%.
  • 🎯682 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78623 and you would come out at 29.96°S, 81.78°E — 1,470 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 04m of daylight. Shortest: 10h 13m.
  • 📏 At 22.4 square miles of land, 78623 is bigger than 40% of ZIP codes — room for about 17 Central Parks.
🌙 The sky over 78623 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,645This ZIP1,645
Households638This ZIP638
Housing units721This ZIP721
Median age60.0This ZIP60.0Texas35.6US 38.9
Median household income$116,923This ZIP$116,923Texas$78,476US $80,734
Median home value$449,600This ZIP$449,600Texas$283,800US $332,700
Bachelor's degree or higher41.6%This ZIP41.6%
Mean commute37.3 minThis ZIP37.3 min
Population density73.5 / sq miThis ZIP73.5 / sq mi

Business and tax activity

Business establishments35This ZIP35
Employees176This ZIP176
Annual payroll$6,772,000This ZIP$6,772,000
Tax returns filed1,170This ZIP1,170
Total adjusted gross income$117,041,000This ZIP$117,041,000

Land area

Land area22.38 sq miThis ZIP22.38 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

Counties 78623 spans

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

CountyShare of this ZIP
Comal County 92.2%
Hays County 7.8%

Other place names in 78623

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

ZIP codes near 78623

ZIPCityDistance
78133 Canyon Lake, TX 5.4 mi
78676 Wimberley, TX 6.7 mi
78070 Spring Branch, TX 12.3 mi
78132 New Braunfels, TX 13.7 mi
78667 San Marcos, TX 14.5 mi
78666 San Marcos, TX 14.8 mi
78619 Driftwood, TX 15.5 mi
78606 Blanco, TX 17.0 mi
78131 New Braunfels, TX 18.3 mi
78135 New Braunfels, TX 18.3 mi

Find every ZIP code within 10 miles of 78623 →

Questions about this ZIP code

Where is ZIP code 78623?

78623 is in Fischer, Texas, in Comal County, part of the San Antonio-New Braunfels, TX metropolitan area. Its published point location is 29.9553, -98.2168.

What county is 78623 in?

78623 spans 2 counties: Comal County and Hays County. Most of it falls in Comal 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 78623?

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

What time zone is 78623 in?

78623 uses America/Chicago.

How many people live in 78623?

About 1,645 people live in ZIP code 78623, in 638 households, at 73.5 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 78623?

$116,923 a year, against $78,476 across Texas.

What ZIP codes are near 78623?

The closest are 78133 (5.4 mi), 78676 (6.7 mi), 78070 (12.3 mi), 78132 (13.7 mi) and 78667 (14.5 mi).

Is 78623 a PO Box ZIP code?

78623 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “78623 ZIP Code — Fischer, Texas (Comal County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78623

Machine-readable version of these facts:

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