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/70381

70381

ZIP 70381 is in Morgan City, Louisiana, in St. Mary Parish; area code 985; Central time. Morgan City has 2 ZIP codes; the other is 70380.

Type
No street area
Time zone
America/Chicago
County
St. Mary
Metro area
Morgan City, LA
Coordinates
29.6946, -91.2593

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 70380, whose figures describe that area — not this ZIP code.

☼ Live from 70381 — Morgan City, LA

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Where 70381 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 70381
  • 🔢 Type 70381 into a pocket calculator and turn it upside down: IBEOL — not quite a word, sorry.
  • ➕ 70381 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10001001011101101
  • 🏠 Its numerical neighbours: 70380 (Morgan City, LA, 10 mi away) and 70390 (Napoleonville, LA, 19 mi away).
  • 🔄 Backwards, 70381 becomes 18307, which is not a ZIP code at all.
  • 👥 52 other ZIP codes are made of exactly the same digits (01378, 03781, 03817, 03871, 07831, 08317, …). The farthest-flung twin is 83701 in Boise, ID, 1,676 miles away.
  • 🧭 Farther south than 94% of all ZIP codes, and farther west than 59%.
  • 🎯813 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 70381 and you would come out at 29.69°S, 88.74°E — 1,318 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 03m of daylight. Shortest: 10h 14m.
🌙 The sky over 70381 today
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Source: USGS.

Business and tax activity

Business establishments24This ZIP24
Employees544This ZIP544
Annual payroll$28,539,000This ZIP$28,539,000

Land area

ZIP codes near 70381

ZIPCityDistance
70342 Berwick, LA 1.3 mi
70392 Patterson, LA 3.6 mi
70340 Amelia, LA 9.5 mi
70380 Morgan City, LA 10.2 mi
70522 Centerville, LA 11.2 mi
70540 Garden City, LA 13.3 mi
70339 Pierre Part, LA 15.2 mi
70538 Franklin, LA 15.7 mi
70372 Labadieville, LA 17.3 mi
70356 Gibson, LA 17.9 mi

Find every ZIP code within 10 miles of 70381 →

Questions about this ZIP code

Where is ZIP code 70381?

70381 is in Morgan City, Louisiana, in St. Mary Parish, part of the Morgan City, LA micropolitan area. Its published point location is 29.6946, -91.2593.

What county is 70381 in?

70381 lies in St. Mary Parish.

What area code is 70381?

Morgan City uses area code 985, from NANPA's telephone records.

What time zone is 70381 in?

70381 uses America/Chicago.

What ZIP codes are near 70381?

The closest are 70342 (1.3 mi), 70392 (3.6 mi), 70340 (9.5 mi), 70380 (10.2 mi) and 70522 (11.2 mi).

Is 70381 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “70381 ZIP Code — Morgan City, Louisiana (St. Mary Parish).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/70381

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/70381.json

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