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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/61639

61639

ZIP 61639 is in Peoria, Illinois, in Peoria County; area codes 309 and 861; Central time. Peoria has 29 ZIP codes in all.

Type
No street area
Time zone
America/Chicago
County
Peoria
Metro area
Peoria, IL
Coordinates
40.7098, -89.5636

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 61603, whose figures describe that area — not this ZIP code.

☼ Live from 61639 — Peoria, IL

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Where 61639 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 61639
  • 🔢 Type 61639 into a pocket calculator and turn it upside down: GEgIg — not quite a word, sorry.
  • ➕ As a number, 61,639 = 53 × 1163. Its digits add up to 25, a total 2,242 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111000011000111
  • 🏠 Its numerical neighbours: 61638 (Peoria, IL, 7 mi away) and 61641 (Peoria, IL, 7 mi away).
  • 🔄 Backwards, 61639 becomes 93616 — and that is a real ZIP code: Del Rey, CA, 1,636 miles away.
  • 👥 21 other ZIP codes are made of exactly the same digits (13669, 13696, 16369, 16639, 16693, 16936, …). The farthest-flung twin is 93661 in Santa Rita Park, CA, 1,679 miles away.
  • 🧭 Farther north than 63% of all ZIP codes, and farther west than 55%.
  • 🎯479 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61639 and you would come out at 40.71°S, 90.44°E — 1,148 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 06m of daylight. Shortest: 9h 15m.
🌙 The sky over 61639 today
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Source: USGS.

Land area

ZIP codes near 61639

ZIPCityDistance
61603 Peoria, IL 0.6 mi
61637 Peoria, IL 1.5 mi
61611 East Peoria, IL 1.5 mi
61636 Peoria, IL 1.8 mi
61601 Peoria, IL 1.8 mi
61629 Peoria, IL 1.8 mi
61634 Peoria, IL 2.1 mi
61633 Peoria, IL 2.5 mi
61616 Peoria Heights, IL 2.6 mi
61606 Peoria, IL 2.6 mi

Find every ZIP code within 10 miles of 61639 →

Questions about this ZIP code

Where is ZIP code 61639?

61639 is in Peoria, Illinois, in Peoria County, part of the Peoria, IL metropolitan area. Its published point location is 40.7098, -89.5636.

What county is 61639 in?

61639 lies in Peoria County.

What area code is 61639?

Peoria uses area codes 309 and 861, from NANPA's telephone records.

What time zone is 61639 in?

61639 uses America/Chicago.

What ZIP codes are near 61639?

The closest are 61603 (0.6 mi), 61637 (1.5 mi), 61611 (1.5 mi), 61636 (1.8 mi) and 61601 (1.8 mi).

Is 61639 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. “61639 ZIP Code — Peoria, Illinois (Peoria County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61639

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