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/19397

19397

ZIP 19397 is in Southeastern, Pennsylvania, in Chester County; area codes 484 and 610; Eastern time. Southeastern has 3 ZIP codes; the others are 19398 and 19399.

Type
No street area
Time zone
America/New_York
County
Chester
Coordinates
39.9832, -75.7481

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 19335, whose figures describe that area — not this ZIP code.

☼ Live from 19397 — Southeastern, PA

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Where 19397 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 19397
  • 🔢 Type 19397 into a pocket calculator and turn it upside down: LGEGI — not quite a word, sorry.
  • ➕ As a number, 19,397 = 7 × 17 × 163. Its digits add up to 29, a total 1,296 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100101111000101
  • 🏠 Its numerical neighbours: 19395 (Westtown, PA, 11 mi away) and 19398 (Southeastern, PA, 0 mi away).
  • 🔄 Backwards, 19397 becomes 79391, which is not a ZIP code at all.
  • 👥 16 other ZIP codes are made of exactly the same digits (19973, 31799, 31997, 37919, 39179, 79913, …). The farthest-flung twin is 99731 in Fort Greely, AK, 3,212 miles away.
  • 🧭 Farther north than 56% of all ZIP codes, and farther east than 85%.
  • 🎯1,207 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19397 and you would come out at 39.98°S, 104.25°E — 853 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 19397 today
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Source: USGS.

Land area

ZIP codes near 19397

ZIPCityDistance
19376 Wagontown, PA 0.0 mi
19398 Southeastern, PA 0.0 mi
19399 Southeastern, PA 0.0 mi
19421 Birchrunville, PA 0.0 mi
19372 Thorndale, PA 1.2 mi
19335 Downingtown, PA 3.1 mi
19358 Modena, PA 3.4 mi
19320 Coatesville, PA 4.7 mi
19354 Lyndell, PA 5.2 mi
19375 Unionville, PA 5.8 mi

Find every ZIP code within 10 miles of 19397 →

Questions about this ZIP code

Where is ZIP code 19397?

19397 is in Southeastern, Pennsylvania, in Chester County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 39.9832, -75.7481.

What county is 19397 in?

19397 lies in Chester County.

What area code is 19397?

Southeastern uses area codes 484 and 610, from NANPA's telephone records.

What time zone is 19397 in?

19397 uses America/New_York.

What ZIP codes are near 19397?

The closest are 19376 (0 mi), 19398 (0 mi), 19399 (0 mi), 19421 (0 mi) and 19372 (1.2 mi).

Is 19397 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. “19397 ZIP Code — Southeastern, Pennsylvania (Chester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19397

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/19397.json

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