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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/16366

16366

ZIP 16366 is in Warren, Pennsylvania, in Warren County; area codes 814, 570 and 582; Eastern time. Warren has 3 ZIP codes; the others are 16365 and 16367.

Type
No street area
Time zone
America/New_York
County
Warren
Metro area
Warren, PA
Coordinates
41.8439, -79.1450

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 16365, whose figures describe that area — not this ZIP code.

☼ Live from 16366 — Warren, PA

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Where 16366 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 16366
  • 🔢 Type 16366 into a pocket calculator and turn it upside down: ggEgI — not quite a word, sorry.
  • ➕ As a number, 16,366 = 2 × 7 × 7 × 167. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11111111101110
  • 🏠 Its numerical neighbours: 16365 (Warren, PA, 1 mi away) and 16367 (Warren, PA, 0 mi away).
  • 🔄 Backwards, 16366 becomes 66361, which is not a ZIP code at all.
  • 👥 6 other ZIP codes are made of exactly the same digits (13666, 16636, 16663, 36616, 61636, 63166). The farthest-flung twin is 36616 in Mobile, AL, 919 miles away.
  • 🧭 Farther north than 74% of all ZIP codes, and farther east than 76%.
  • 🎯1,023 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 16366 and you would come out at 41.84°S, 100.86°E — 1,072 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 13m of daylight. Shortest: 9h 08m.
🌙 The sky over 16366 today
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Source: USGS.

Land area

ZIP codes near 16366

ZIPCityDistance
16367 Warren, PA 0.0 mi
16365 Warren, PA 0.7 mi
16329 Irvine, PA 6.2 mi
16368 Irvine, PA 6.5 mi
16369 Irvine, PA 6.5 mi
16345 Russell, PA 7.6 mi
16352 Tiona, PA 7.8 mi
16313 Clarendon, PA 8.9 mi
16371 Youngsville, PA 9.1 mi
16312 Chandlers Valley, PA 10.2 mi

Find every ZIP code within 10 miles of 16366 →

Questions about this ZIP code

Where is ZIP code 16366?

16366 is in Warren, Pennsylvania, in Warren County, part of the Warren, PA micropolitan area. Its published point location is 41.8439, -79.1450.

What county is 16366 in?

16366 lies in Warren County.

What area code is 16366?

Warren uses area codes 814, 570 and 582, from NANPA's telephone records.

What time zone is 16366 in?

16366 uses America/New_York.

What ZIP codes are near 16366?

The closest are 16367 (0 mi), 16365 (0.7 mi), 16329 (6.2 mi), 16368 (6.5 mi) and 16369 (6.5 mi).

Is 16366 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. “16366 ZIP Code — Warren, Pennsylvania (Warren County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/16366

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/16366.json

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