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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/78401

78401

ZIP 78401 is in Corpus Christi, Texas, in Nueces County; area code 361; Central time. Corpus Christi has 30 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Nueces
Metro area
Corpus Christi, TX
Population
4,344
Coordinates
27.7968, -97.3991
☼ Live from 78401 — Corpus Christi, TX

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Where 78401 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 78401
  • 🔢 Type 78401 into a pocket calculator and turn it upside down: IOhBL — not quite a word, sorry.
  • ➕ 78401 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001001000001
  • 🏠 Its numerical neighbours: 78393 (Woodsboro, TX, 27 mi away) and 78402 (Corpus Christi, TX, 5 mi away).
  • 🔄 Backwards, 78401 becomes 10487, which is not a ZIP code at all.
  • 👥 57 other ZIP codes are made of exactly the same digits (01748, 01784, 04781, 07184, 07418, 07481, …). The farthest-flung twin is 04781 in Wallagrass, ME, 2,048 miles away.
  • 🧭 Farther south than 97% of all ZIP codes, and farther west than 75%.
  • 🎯834 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78401 and you would come out at 27.80°S, 82.60°E — 1,419 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 13h 54m of daylight. Shortest: 10h 23m.
  • 📏 At 2.1 square miles of land, 78401 is bigger than 12% of ZIP codes — room for about 1.6 Central Parks.
🌙 The sky over 78401 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population4,344This ZIP4,344
Households1,445This ZIP1,445
Housing units2,041This ZIP2,041
Median age45.7This ZIP45.7Texas35.6US 38.9
Median household income$40,841This ZIP$40,841Texas$78,476US $80,734
Median home value$77,500This ZIP$77,500Texas$283,800US $332,700
Median gross rent$1,052This ZIP$1,052Texas$1,403US $1,413
Bachelor's degree or higher16.0%This ZIP16.0%
Mean commute18.2 minThis ZIP18.2 min
Population density2,042.3 / sq miThis ZIP2,042.3 / sq mi

Business and tax activity

Business establishments665This ZIP665
Employees12,036This ZIP12,036
Annual payroll$828,999,000This ZIP$828,999,000
Tax returns filed1,230This ZIP1,230
Total adjusted gross income$156,717,000This ZIP$156,717,000

Land area

Land area2.13 sq miThis ZIP2.13 sq mi
Water area0.28 sq miThis ZIP0.28 sq mi

Other place names in 78401

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

ZIP codes near 78401

ZIPCityDistance
78427 Corpus Christi, TX 0.3 mi
78460 Corpus Christi, TX 0.3 mi
78404 Corpus Christi, TX 2.0 mi
78408 Corpus Christi, TX 2.7 mi
78405 Corpus Christi, TX 2.9 mi
78407 Corpus Christi, TX 3.1 mi
78416 Corpus Christi, TX 4.0 mi
78403 Corpus Christi, TX 4.2 mi
78426 Corpus Christi, TX 4.2 mi
78463 Corpus Christi, TX 4.2 mi

Find every ZIP code within 10 miles of 78401 →

Questions about this ZIP code

Where is ZIP code 78401?

78401 is in Corpus Christi, Texas, in Nueces County, part of the Corpus Christi, TX metropolitan area. Its published point location is 27.7968, -97.3991.

What county is 78401 in?

78401 lies in Nueces County.

What area code is 78401?

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

What time zone is 78401 in?

78401 uses America/Chicago.

How many people live in 78401?

About 4,344 people live in ZIP code 78401, in 1,445 households, at 2,042.3 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 78401?

$40,841 a year, against $78,476 across Texas.

What ZIP codes are near 78401?

The closest are 78427 (0.3 mi), 78460 (0.3 mi), 78404 (2 mi), 78408 (2.7 mi) and 78405 (2.9 mi).

Is 78401 a PO Box ZIP code?

78401 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “78401 ZIP Code — Corpus Christi, Texas (Nueces County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78401

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