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/77641

77641

ZIP 77641 is in Port Arthur, Texas, in Jefferson County; area code 409; Central time. Port Arthur has 4 ZIP codes; the others are 77640, 77642 and 77643.

Type
No street area
Time zone
America/Chicago
County
Jefferson
Coordinates
29.8476, -94.1297

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 77705, whose figures describe that area — not this ZIP code.

☼ Live from 77641 — Port Arthur, TX

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Where 77641 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 77641
  • 🔢 Type 77641 into a pocket calculator and turn it upside down: IhgLL — not quite a word, sorry.
  • ➕ 77641 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 25, a total 2,242 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10010111101001001
  • 🏠 Its numerical neighbours: 77640 (Port Arthur, TX, 12 mi away) and 77642 (Port Arthur, TX, 16 mi away).
  • 🔄 Backwards, 77641 becomes 14677, which is not a ZIP code at all.
  • 👥 24 other ZIP codes are made of exactly the same digits (14767, 17764, 41776, 46771, 47167, 47617, …). The farthest-flung twin is 17764 in Renovo, PA, 1,209 miles away.
  • 🧭 Farther south than 93% of all ZIP codes, and farther west than 66%.
  • 🎯734 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 77641 and you would come out at 29.85°S, 85.87°E — 1,410 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 04m of daylight. Shortest: 10h 13m.
🌙 The sky over 77641 today
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Source: USGS.

Business and tax activity

Business establishments18This ZIP18
Employees1,447This ZIP1,447
Annual payroll$203,833,000This ZIP$203,833,000

Land area

ZIP codes near 77641

ZIPCityDistance
77705 Beaumont, TX 5.0 mi
77622 Hamshire, TX 9.4 mi
77640 Port Arthur, TX 11.5 mi
77627 Nederland, TX 12.3 mi
77651 Port Neches, TX 14.2 mi
77707 Beaumont, TX 14.4 mi
77619 Groves, TX 14.5 mi
77655 Sabine Pass, TX 14.9 mi
77661 Stowell, TX 15.1 mi
77701 Beaumont, TX 15.6 mi

Find every ZIP code within 10 miles of 77641 →

Questions about this ZIP code

Where is ZIP code 77641?

77641 is in Port Arthur, Texas, in Jefferson County, part of the Beaumont-Port Arthur, TX metropolitan area. Its published point location is 29.8476, -94.1297.

What county is 77641 in?

77641 lies in Jefferson County.

What area code is 77641?

Port Arthur uses area code 409, from NANPA's telephone records.

What time zone is 77641 in?

77641 uses America/Chicago.

What ZIP codes are near 77641?

The closest are 77705 (5 mi), 77622 (9.4 mi), 77640 (11.5 mi), 77627 (12.3 mi) and 77651 (14.2 mi).

Is 77641 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. “77641 ZIP Code — Port Arthur, Texas (Jefferson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/77641

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