Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — ZIP/19381

19381

ZIP 19381 is in West Chester, Pennsylvania, in Chester County; area codes 484, 610 and 835; Eastern time. West Chester has 4 ZIP codes; the others are 19380, 19382 and 19383.

Type
No street area
Time zone
America/New_York
County
Chester
Coordinates
39.9610, -75.6080

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 19380, whose figures describe that area — not this ZIP code.

☼ Live from 19381 — West Chester, PA

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Local time: —

Where 19381 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 19381
  • 🔢 Type 19381 into a pocket calculator and turn it upside down: IBEGI — not quite a word, sorry.
  • ➕ 19381 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100101110110101
  • 🏠 Its numerical neighbours: 19380 (West Chester, PA, 2 mi away) and 19382 (West Chester, PA, 2 mi away).
  • 🔄 Backwards, 19381 becomes 18391, which is not a ZIP code at all.
  • 👥 16 other ZIP codes are made of exactly the same digits (18913, 18931, 19138, 19183, 19318, 38119, …). The farthest-flung twin is 93118 in Goleta, CA, 2,438 miles away.
  • 🧭 Farther north than 56% of all ZIP codes, and farther east than 86%.
  • 🎯1,214 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19381 and you would come out at 39.96°S, 104.39°E — 846 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 01m of daylight. Shortest: 9h 20m.
🌙 The sky over 19381 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments15This ZIP15
Employees249This ZIP249
Annual payroll$18,812,000This ZIP$18,812,000

Land area

ZIP codes near 19381

ZIPCityDistance
19383 West Chester, PA 1.7 mi
19380 West Chester, PA 1.8 mi
19382 West Chester, PA 2.3 mi
19395 Westtown, PA 3.9 mi
19366 Pocopson, PA 4.3 mi
19319 Cheyney, PA 5.0 mi
19345 Immaculata, PA 5.2 mi
19373 Thornton, PA 5.7 mi
19341 Exton, PA 5.7 mi
19353 Lionville, PA 6.8 mi

Find every ZIP code within 10 miles of 19381 →

Questions about this ZIP code

Where is ZIP code 19381?

19381 is in West Chester, Pennsylvania, in Chester County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 39.9610, -75.6080.

What county is 19381 in?

19381 lies in Chester County.

What area code is 19381?

West Chester uses area codes 484, 610 and 835, from NANPA's telephone records.

What time zone is 19381 in?

19381 uses America/New_York.

What ZIP codes are near 19381?

The closest are 19383 (1.7 mi), 19380 (1.8 mi), 19382 (2.3 mi), 19395 (3.9 mi) and 19366 (4.3 mi).

Is 19381 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. “19381 ZIP Code — West Chester, Pennsylvania (Chester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19381

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/19381.json

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