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/78338

78338

ZIP 78338 is Armstrong, Texas, in Kenedy County; area code 361; Central time.

Type
Standard
Time zone
America/Chicago
County
Kenedy
Metro area
none
Population
36
Coordinates
26.8562, -97.7322
☼ Live from 78338 — Armstrong, TX

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 78338 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 78338
  • 🔢 Type 78338 into a pocket calculator and turn it upside down: BEEBL — not quite a word, sorry.
  • ➕ As a number, 78,338 = 2 × 13 × 23 × 131. Its digits add up to 29, a total 1,296 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001000000010
  • 🏠 Its numerical neighbours: 78336 (Aransas Pass, TX, 82 mi away) and 78339 (Banquete, TX, 65 mi away).
  • 🔄 Backwards, 78338 becomes 83387, which is not a ZIP code at all.
  • 👥 11 other ZIP codes are made of exactly the same digits (37388, 38378, 38387, 38738, 38873, 73838, …). The farthest-flung twin is 83837 in Kellogg, ID, 1,740 miles away.
  • 🧭 Farther south than 97% of all ZIP codes, and farther west than 76%.
  • 🎯898 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78338 and you would come out at 26.86°S, 82.27°E — 1,387 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 13h 50m of daylight. Shortest: 10h 27m.
  • 📏 At 51.7 square miles of land, 78338 is bigger than 60% of ZIP codes — room for about 39 Central Parks.
🌙 The sky over 78338 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population36This ZIP36
Households7This ZIP7
Housing units10This ZIP10
Median age35.1This ZIP35.1Texas35.6US 38.9
Bachelor's degree or higher0.0%
Population density0.7 / sq miThis ZIP0.7 / sq mi

Business and tax activity

Business establishments3This ZIP3
Employees42This ZIP42
Annual payroll$3,158,000This ZIP$3,158,000

Land area

Land area51.69 sq miThis ZIP51.69 sq mi
Water area0.01 sq miThis ZIP0.01 sq mi

ZIP codes near 78338

ZIPCityDistance
78385 Sarita, TX 19.4 mi
78580 Raymondville, TX 24.6 mi
78590 San Perlita, TX 25.2 mi
78540 Edinburg, TX 26.6 mi
78598 Port Mansfield, TX 29.0 mi
78561 Lasara, TX 29.1 mi
78379 Riviera, TX 31.3 mi
78549 Hargill, TX 31.3 mi
78353 Encino, TX 31.4 mi
78569 Lyford, TX 33.0 mi

Find every ZIP code within 10 miles of 78338 →

Questions about this ZIP code

Where is ZIP code 78338?

78338 is in Armstrong, Texas, in Kenedy County. Its published point location is 26.8562, -97.7322.

What county is 78338 in?

78338 lies in Kenedy County.

What area code is 78338?

Armstrong uses area code 361, from NANPA's telephone records.

What time zone is 78338 in?

78338 uses America/Chicago.

How many people live in 78338?

About 36 people live in ZIP code 78338, in 7 households, at 0.7 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 78338?

The closest are 78385 (19.4 mi), 78580 (24.6 mi), 78590 (25.2 mi), 78540 (26.6 mi) and 78598 (29 mi).

Is 78338 a PO Box ZIP code?

78338 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “78338 ZIP Code — Armstrong, Texas (Kenedy County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78338

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/78338.json

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